Vitamin D, 25-OH, Total details

Vitamin D, 25-OH, Total

$39.49

This test measures 25-hydroxy Vitamin D, the best indicator of vitamin D status. It can be used to monitor the effectiveness of supplementation and to assess patients with low calcium levels or symptoms of vitamin D deficiency.

Sample type: Serum
Avg. sample processing time: 2 Business days
Require fasting: No

Biomarkers

Vitamin D, 25-OH, Total The combined measure of both major forms of vitamin D (D2 and D3) in your blood — the standard test used to assess overall vitamin D status.

25-Hydroxy Vitamin D (D2+D3 Fractionated)

$146.99

This panel measures total 25-OH vitamin D, 25-OH vitamin D2, and 25-OH vitamin D3 to assess nutritional deficiencies and monitor nutrient supplementation.

Sample type: Serum
Avg. sample processing time: 6 Business days
Require fasting: No

Biomarkers

Vitamin D, 25-OH, Total The combined measure of both major forms of vitamin D (D2 and D3) in your blood — the standard test used to assess overall vitamin D status.
25-OH Vitamin D2 The form of vitamin D your body makes from plant-based (D2) supplements or fortified foods. Reflects how much vitamin D you're getting from these sources.
25-OH Vitamin D3 The main form of vitamin D your body produces from sun exposure or gets from animal-based foods and supplements. Shows the D3 part only; overall vitamin D status is judged on total 25-OH vitamin D.

Cardio IQ Vitamin D, 25-Hydroxy

$28.49

This test measures the levels of Vitamin D in your body, which is crucial for bone health. It's especially useful for people without kidney disease. Low levels of Vitamin D can lead to bone issues like rickets in children and osteomalacia in adults, while high levels can cause hypercalcemia. This test specifically looks at two forms of Vitamin D: 25OH D3 (the type your body makes) and 25OH D2 (a form used to treat Vitamin D deficiency).

Sample type: Serum
Avg. sample processing time: 5 Business days
Require fasting: No

Biomarkers

25-OH Hydroxy Vitamin D (Cholecalciferol D3)
25-OH Hydroxy Vitamin D (Ergocalciferol D2)
Vitamin D, 25-OH, Total The combined measure of both major forms of vitamin D (D2 and D3) in your blood — the standard test used to assess overall vitamin D status.

Functional Health Panel (Female)

$747.99

This comprehensive panel assesses biomarkers related to hormonal health, thyroid function, metabolism, cardiovascular health, inflammation, nutrient status, and environmental exposures. The results can help provide a broader picture of overall health and support personalized wellness and treatment strategies.

Sample type: Plasma Serum Whole Blood
Avg. sample processing time: 18 Business days
Require fasting: Yes

Biomarkers

Zinc Measures zinc, a trace mineral essential for immune function, wound healing, and taste/smell.
VLDL Size Measures the average size of your VLDL particles, used alongside particle number for a more detailed cardiovascular risk assessment.
Thyroglobulin Antibodies (Anti-Tg) An autoantibody against thyroglobulin. Elevated levels are associated with autoimmune thyroid conditions like Hashimoto's thyroiditis, and checked before using thyroglobulin to monitor thyroid cancer.
Free Testosterone The small portion of your testosterone that's unbound and biologically active, considered a more accurate reflection of usable hormone than total testosterone.
Methylmalonic Acid A compound that builds up when vitamin B12 is deficient. A more sensitive marker of B12 status than a B12 blood level alone.
Large VLDL-P Counts the largest VLDL particles, which carry a high amount of triglycerides and are associated with greater cardiovascular risk.
Estradiol The main and most potent form of estrogen. Key for reproductive health in women and also present in men; used to evaluate menstrual, fertility, and hormone-related concerns.
LDL Size Measures the average size of your LDL ('bad' cholesterol) particles; smaller, denser particles are considered more likely to contribute to artery plaque.
LP-IR Score Lipoprotein Insulin Resistance Score — a composite score derived from lipoprotein particle measurements that estimates insulin resistance.
Lead (Venous) Measures lead levels in your blood, used to assess exposure to this toxic heavy metal.
LDL Small
Leptin A hormone released by fat cells that helps regulate appetite and energy balance. Levels generally rise with increased body fat.
Thyroid Peroxidase Antibodies (Anti-TPO) An autoantibody that's the most common marker of autoimmune thyroid disease, including Hashimoto's thyroiditis and Graves' disease.
Total Iron Binding Capacity (TIBC) Total Iron-Binding Capacity — reflects how much transferrin (the iron-carrying protein) is available in your blood, used with iron and ferritin to evaluate iron status.
Homocysteine An amino acid byproduct of protein metabolism. Elevated levels are linked to increased cardiovascular risk and can reflect low B vitamin (B12, folate, B6) status.
ABO Group Identifies your blood type (A, B, AB, or O) based on antigens on your red blood cells. Essential for safely matching blood for transfusions or transplants.
Iron, Total Measures the iron circulating in your blood, used along with other markers (like ferritin and TIBC) to evaluate for iron deficiency or overload.
Amylase An enzyme that helps digest carbohydrates, produced mainly by the pancreas and salivary glands. Elevated levels can signal pancreatitis or salivary gland problems.
Luteinizing Hormone (LH) A pituitary hormone that triggers ovulation in women and stimulates testosterone production in men. Used to evaluate fertility, menstrual irregularities, and reproductive hormone disorders.
HDL-P HDL particle number — counts your actual HDL ('good' cholesterol) particles rather than just the cholesterol they carry, offering a more detailed cardiovascular risk picture.
LDL Particle Number
Uric Acid A waste product from the breakdown of purines. Elevated levels are linked to gout and kidney stones, and can also reflect metabolic health.
SHBG (Sex Hormone-Binding Globulin) A protein that binds and transports testosterone and estrogen in your blood, determining how much hormone is 'free' and active. Important for interpreting sex hormone results.
Antinuclear Antibodies Antibodies that target structures inside your own cells' nuclei. A positive result is a key screening marker for autoimmune conditions like lupus.
T3, Free (fT3) The unbound, biologically active portion of triiodothyronine (T3), the more potent thyroid hormone. Used to evaluate thyroid function.
DHEA-S The sulfated, more stable form of DHEA. A reliable marker of adrenal androgen production, used to evaluate adrenal function and androgen excess.
GGT Gamma-glutamyl transferase, a liver enzyme sensitive to bile duct problems and alcohol use, often used alongside other liver tests.
Testosterone The primary male sex hormone, also present in women in smaller amounts. Evaluated for low testosterone symptoms, fertility, and reproductive hormone imbalances.
Thyroid-Stimulating Hormone (TSH) A pituitary hormone that signals your thyroid to produce hormone. The primary screening test for both underactive and overactive thyroid conditions.
Mercury Measures mercury levels in your blood, used to assess exposure to this toxic heavy metal, often from certain fish or environmental sources.
Iron % Saturation The percentage of transferrin (your iron-carrying protein) that's currently occupied by iron — a key marker for detecting iron deficiency or overload.
T4, Free (fT4) The unbound, biologically active portion of thyroxine (T4), your main thyroid hormone. A core marker for evaluating thyroid function.
hsCRP
Rheumatoid factor
Vitamin D, 25-OH, Total The combined measure of both major forms of vitamin D (D2 and D3) in your blood — the standard test used to assess overall vitamin D status.
Cortisol, Total Your main stress hormone, produced by the adrenal glands. Reflects adrenal function and helps evaluate conditions like Cushing's syndrome or adrenal insufficiency.
Prolactin A pituitary hormone best known for stimulating milk production; also checked to evaluate menstrual irregularities, fertility issues, or pituitary conditions in men and women.
HDL Large
Lipase An enzyme that helps digest fat, produced mainly by the pancreas. Elevated levels are a key marker for pancreatitis.
Rh Type Identifies whether your blood is Rh-positive or Rh-negative, an important factor for blood transfusions and pregnancy management.
Ferritin Reflects your body's stored iron levels. Low levels point to iron deficiency; high levels can indicate iron overload or, since it's also an inflammation marker, other conditions.
Magnesium Measures magnesium, a mineral essential for muscle, nerve, heart, and bone function.
Follicle-Stimulating Hormone (FSH) A pituitary hormone that drives egg development in women and sperm production in men. Key marker for fertility and menopause evaluation.
HDL Size Measures the average size of your HDL ('good' cholesterol) particles, used alongside particle number for a more detailed cardiovascular risk assessment.
Albumin The main protein made by your liver, which helps balance fluids and carries hormones, vitamins, and medications through your blood. Low levels can point to liver, kidney, or nutrition issues.
Unsaturated Iron Binding Capacity
Lipoprotein(a) A genetically-determined, LDL-like particle. Elevated levels are an independent, largely inherited risk factor for cardiovascular disease.
Apolipoprotein B The main protein found on LDL and other 'bad' cholesterol particles. Considered a strong indicator of cardiovascular risk, since each particle carries one ApoB molecule.

Functional Health Panel (Male)

$753.99

This comprehensive panel assesses biomarkers related to hormonal health, thyroid function, metabolism, cardiovascular health, inflammation, nutrient status, and environmental exposures. The results can help provide a broader picture of overall health and support personalized wellness and treatment strategies.

Sample type: Plasma Serum Whole Blood
Avg. sample processing time: 18 Business days
Require fasting: Yes

Biomarkers

Vitamin D, 25-OH, Total The combined measure of both major forms of vitamin D (D2 and D3) in your blood — the standard test used to assess overall vitamin D status.
VLDL Size Measures the average size of your VLDL particles, used alongside particle number for a more detailed cardiovascular risk assessment.
Methylmalonic Acid A compound that builds up when vitamin B12 is deficient. A more sensitive marker of B12 status than a B12 blood level alone.
Ferritin Reflects your body's stored iron levels. Low levels point to iron deficiency; high levels can indicate iron overload or, since it's also an inflammation marker, other conditions.
LDL Size Measures the average size of your LDL ('bad' cholesterol) particles; smaller, denser particles are considered more likely to contribute to artery plaque.
Prostate-Specific Antigen (PSA) A protein made by the prostate gland. Used to help screen for and monitor prostate cancer, though it can also rise with benign prostate conditions.
Thyroglobulin Antibodies (Anti-Tg) An autoantibody against thyroglobulin. Elevated levels are associated with autoimmune thyroid conditions like Hashimoto's thyroiditis, and checked before using thyroglobulin to monitor thyroid cancer.
Free Testosterone The small portion of your testosterone that's unbound and biologically active, considered a more accurate reflection of usable hormone than total testosterone.
Amylase An enzyme that helps digest carbohydrates, produced mainly by the pancreas and salivary glands. Elevated levels can signal pancreatitis or salivary gland problems.
HDL-P HDL particle number — counts your actual HDL ('good' cholesterol) particles rather than just the cholesterol they carry, offering a more detailed cardiovascular risk picture.
Testosterone The primary male sex hormone, also present in women in smaller amounts. Evaluated for low testosterone symptoms, fertility, and reproductive hormone imbalances.
Cortisol, Total Your main stress hormone, produced by the adrenal glands. Reflects adrenal function and helps evaluate conditions like Cushing's syndrome or adrenal insufficiency.
Mercury Measures mercury levels in your blood, used to assess exposure to this toxic heavy metal, often from certain fish or environmental sources.
Rh Type Identifies whether your blood is Rh-positive or Rh-negative, an important factor for blood transfusions and pregnancy management.
Leptin A hormone released by fat cells that helps regulate appetite and energy balance. Levels generally rise with increased body fat.
T3, Free (fT3) The unbound, biologically active portion of triiodothyronine (T3), the more potent thyroid hormone. Used to evaluate thyroid function.
Rheumatoid factor
Prostate-specific antigen (PSA), % Free
Lipase An enzyme that helps digest fat, produced mainly by the pancreas. Elevated levels are a key marker for pancreatitis.
LDL Small
Uric Acid A waste product from the breakdown of purines. Elevated levels are linked to gout and kidney stones, and can also reflect metabolic health.
Total Iron Binding Capacity (TIBC) Total Iron-Binding Capacity — reflects how much transferrin (the iron-carrying protein) is available in your blood, used with iron and ferritin to evaluate iron status.
Large VLDL-P Counts the largest VLDL particles, which carry a high amount of triglycerides and are associated with greater cardiovascular risk.
HDL Large
Magnesium Measures magnesium, a mineral essential for muscle, nerve, heart, and bone function.
LDL Particle Number
Estradiol The main and most potent form of estrogen. Key for reproductive health in women and also present in men; used to evaluate menstrual, fertility, and hormone-related concerns.
Lipoprotein(a) A genetically-determined, LDL-like particle. Elevated levels are an independent, largely inherited risk factor for cardiovascular disease.
Thyroid Peroxidase Antibodies (Anti-TPO) An autoantibody that's the most common marker of autoimmune thyroid disease, including Hashimoto's thyroiditis and Graves' disease.
Luteinizing Hormone (LH) A pituitary hormone that triggers ovulation in women and stimulates testosterone production in men. Used to evaluate fertility, menstrual irregularities, and reproductive hormone disorders.
Unsaturated Iron Binding Capacity
Follicle-Stimulating Hormone (FSH) A pituitary hormone that drives egg development in women and sperm production in men. Key marker for fertility and menopause evaluation.
T4, Free (fT4) The unbound, biologically active portion of thyroxine (T4), your main thyroid hormone. A core marker for evaluating thyroid function.
hsCRP
DHEA-S The sulfated, more stable form of DHEA. A reliable marker of adrenal androgen production, used to evaluate adrenal function and androgen excess.
Antinuclear Antibodies Antibodies that target structures inside your own cells' nuclei. A positive result is a key screening marker for autoimmune conditions like lupus.
Prolactin A pituitary hormone best known for stimulating milk production; also checked to evaluate menstrual irregularities, fertility issues, or pituitary conditions in men and women.
ABO Group Identifies your blood type (A, B, AB, or O) based on antigens on your red blood cells. Essential for safely matching blood for transfusions or transplants.
GGT Gamma-glutamyl transferase, a liver enzyme sensitive to bile duct problems and alcohol use, often used alongside other liver tests.
Thyroid-Stimulating Hormone (TSH) A pituitary hormone that signals your thyroid to produce hormone. The primary screening test for both underactive and overactive thyroid conditions.
Prostate-specific antigen (PSA), Free
SHBG (Sex Hormone-Binding Globulin) A protein that binds and transports testosterone and estrogen in your blood, determining how much hormone is 'free' and active. Important for interpreting sex hormone results.
Homocysteine An amino acid byproduct of protein metabolism. Elevated levels are linked to increased cardiovascular risk and can reflect low B vitamin (B12, folate, B6) status.
Apolipoprotein B The main protein found on LDL and other 'bad' cholesterol particles. Considered a strong indicator of cardiovascular risk, since each particle carries one ApoB molecule.
Lead (Venous) Measures lead levels in your blood, used to assess exposure to this toxic heavy metal.
Albumin The main protein made by your liver, which helps balance fluids and carries hormones, vitamins, and medications through your blood. Low levels can point to liver, kidney, or nutrition issues.
Zinc Measures zinc, a trace mineral essential for immune function, wound healing, and taste/smell.
Iron % Saturation The percentage of transferrin (your iron-carrying protein) that's currently occupied by iron — a key marker for detecting iron deficiency or overload.
HDL Size Measures the average size of your HDL ('good' cholesterol) particles, used alongside particle number for a more detailed cardiovascular risk assessment.
LP-IR Score Lipoprotein Insulin Resistance Score — a composite score derived from lipoprotein particle measurements that estimates insulin resistance.
Iron, Total Measures the iron circulating in your blood, used along with other markers (like ferritin and TIBC) to evaluate for iron deficiency or overload.

Functional Health Panel with AMH (Female)

$821.49

This comprehensive panel assesses biomarkers related to hormonal health, thyroid function, metabolism, cardiovascular health, inflammation, nutrient status, and environmental exposures. The results can help provide a broader picture of overall health and support personalized wellness and treatment strategies.

Sample type: Plasma Serum Whole Blood
Avg. sample processing time: 18 Business days
Require fasting: Yes

Biomarkers

Amylase An enzyme that helps digest carbohydrates, produced mainly by the pancreas and salivary glands. Elevated levels can signal pancreatitis or salivary gland problems.
Rheumatoid factor
LP-IR Score Lipoprotein Insulin Resistance Score — a composite score derived from lipoprotein particle measurements that estimates insulin resistance.
SHBG (Sex Hormone-Binding Globulin) A protein that binds and transports testosterone and estrogen in your blood, determining how much hormone is 'free' and active. Important for interpreting sex hormone results.
HDL Size Measures the average size of your HDL ('good' cholesterol) particles, used alongside particle number for a more detailed cardiovascular risk assessment.
Methylmalonic Acid A compound that builds up when vitamin B12 is deficient. A more sensitive marker of B12 status than a B12 blood level alone.
Unsaturated Iron Binding Capacity
Free Testosterone The small portion of your testosterone that's unbound and biologically active, considered a more accurate reflection of usable hormone than total testosterone.
HDL Large
VLDL Size Measures the average size of your VLDL particles, used alongside particle number for a more detailed cardiovascular risk assessment.
Leptin A hormone released by fat cells that helps regulate appetite and energy balance. Levels generally rise with increased body fat.
Magnesium Measures magnesium, a mineral essential for muscle, nerve, heart, and bone function.
Prolactin A pituitary hormone best known for stimulating milk production; also checked to evaluate menstrual irregularities, fertility issues, or pituitary conditions in men and women.
Cortisol, Total Your main stress hormone, produced by the adrenal glands. Reflects adrenal function and helps evaluate conditions like Cushing's syndrome or adrenal insufficiency.
HDL-P HDL particle number — counts your actual HDL ('good' cholesterol) particles rather than just the cholesterol they carry, offering a more detailed cardiovascular risk picture.
Homocysteine An amino acid byproduct of protein metabolism. Elevated levels are linked to increased cardiovascular risk and can reflect low B vitamin (B12, folate, B6) status.
Luteinizing Hormone (LH) A pituitary hormone that triggers ovulation in women and stimulates testosterone production in men. Used to evaluate fertility, menstrual irregularities, and reproductive hormone disorders.
Lead (Venous) Measures lead levels in your blood, used to assess exposure to this toxic heavy metal.
Uric Acid A waste product from the breakdown of purines. Elevated levels are linked to gout and kidney stones, and can also reflect metabolic health.
Mercury Measures mercury levels in your blood, used to assess exposure to this toxic heavy metal, often from certain fish or environmental sources.
Anti-Mullerian Hormone (AMH) A hormone produced by developing egg follicles that reflects ovarian reserve — an estimate of how many eggs remain. Commonly used in fertility evaluations.
Large VLDL-P Counts the largest VLDL particles, which carry a high amount of triglycerides and are associated with greater cardiovascular risk.
hsCRP
Vitamin D, 25-OH, Total The combined measure of both major forms of vitamin D (D2 and D3) in your blood — the standard test used to assess overall vitamin D status.
T4, Free (fT4) The unbound, biologically active portion of thyroxine (T4), your main thyroid hormone. A core marker for evaluating thyroid function.
T3, Free (fT3) The unbound, biologically active portion of triiodothyronine (T3), the more potent thyroid hormone. Used to evaluate thyroid function.
Thyroid-Stimulating Hormone (TSH) A pituitary hormone that signals your thyroid to produce hormone. The primary screening test for both underactive and overactive thyroid conditions.
Iron % Saturation The percentage of transferrin (your iron-carrying protein) that's currently occupied by iron — a key marker for detecting iron deficiency or overload.
Apolipoprotein B The main protein found on LDL and other 'bad' cholesterol particles. Considered a strong indicator of cardiovascular risk, since each particle carries one ApoB molecule.
DHEA-S The sulfated, more stable form of DHEA. A reliable marker of adrenal androgen production, used to evaluate adrenal function and androgen excess.
Albumin The main protein made by your liver, which helps balance fluids and carries hormones, vitamins, and medications through your blood. Low levels can point to liver, kidney, or nutrition issues.
Lipoprotein(a) A genetically-determined, LDL-like particle. Elevated levels are an independent, largely inherited risk factor for cardiovascular disease.
Thyroglobulin Antibodies (Anti-Tg) An autoantibody against thyroglobulin. Elevated levels are associated with autoimmune thyroid conditions like Hashimoto's thyroiditis, and checked before using thyroglobulin to monitor thyroid cancer.
LDL Size Measures the average size of your LDL ('bad' cholesterol) particles; smaller, denser particles are considered more likely to contribute to artery plaque.
Total Iron Binding Capacity (TIBC) Total Iron-Binding Capacity — reflects how much transferrin (the iron-carrying protein) is available in your blood, used with iron and ferritin to evaluate iron status.
LDL Small
Thyroid Peroxidase Antibodies (Anti-TPO) An autoantibody that's the most common marker of autoimmune thyroid disease, including Hashimoto's thyroiditis and Graves' disease.
Zinc Measures zinc, a trace mineral essential for immune function, wound healing, and taste/smell.
Ferritin Reflects your body's stored iron levels. Low levels point to iron deficiency; high levels can indicate iron overload or, since it's also an inflammation marker, other conditions.
ABO Group Identifies your blood type (A, B, AB, or O) based on antigens on your red blood cells. Essential for safely matching blood for transfusions or transplants.
Iron, Total Measures the iron circulating in your blood, used along with other markers (like ferritin and TIBC) to evaluate for iron deficiency or overload.
GGT Gamma-glutamyl transferase, a liver enzyme sensitive to bile duct problems and alcohol use, often used alongside other liver tests.
Antinuclear Antibodies Antibodies that target structures inside your own cells' nuclei. A positive result is a key screening marker for autoimmune conditions like lupus.
Estradiol The main and most potent form of estrogen. Key for reproductive health in women and also present in men; used to evaluate menstrual, fertility, and hormone-related concerns.
LDL Particle Number
Testosterone The primary male sex hormone, also present in women in smaller amounts. Evaluated for low testosterone symptoms, fertility, and reproductive hormone imbalances.
Lipase An enzyme that helps digest fat, produced mainly by the pancreas. Elevated levels are a key marker for pancreatitis.
Rh Type Identifies whether your blood is Rh-positive or Rh-negative, an important factor for blood transfusions and pregnancy management.
Follicle-Stimulating Hormone (FSH) A pituitary hormone that drives egg development in women and sperm production in men. Key marker for fertility and menopause evaluation.

Functional Health Panel with AMH (Male)

$896.49

This comprehensive panel assesses biomarkers related to hormonal health, thyroid function, metabolism, cardiovascular health, inflammation, nutrient status, and environmental exposures. The results can help provide a broader picture of overall health and support personalized wellness and treatment strategies.

Sample type: Plasma Serum Whole Blood
Avg. sample processing time: 18 Business days
Require fasting: Yes

Biomarkers

Total Iron Binding Capacity (TIBC) Total Iron-Binding Capacity — reflects how much transferrin (the iron-carrying protein) is available in your blood, used with iron and ferritin to evaluate iron status.
Anti-Mullerian Hormone (AMH) A hormone produced by developing egg follicles that reflects ovarian reserve — an estimate of how many eggs remain. Commonly used in fertility evaluations.
Iron, Total Measures the iron circulating in your blood, used along with other markers (like ferritin and TIBC) to evaluate for iron deficiency or overload.
Thyroid Peroxidase Antibodies (Anti-TPO) An autoantibody that's the most common marker of autoimmune thyroid disease, including Hashimoto's thyroiditis and Graves' disease.
LP-IR Score Lipoprotein Insulin Resistance Score — a composite score derived from lipoprotein particle measurements that estimates insulin resistance.
Cortisol, Total Your main stress hormone, produced by the adrenal glands. Reflects adrenal function and helps evaluate conditions like Cushing's syndrome or adrenal insufficiency.
Iron % Saturation The percentage of transferrin (your iron-carrying protein) that's currently occupied by iron — a key marker for detecting iron deficiency or overload.
Follicle-Stimulating Hormone (FSH) A pituitary hormone that drives egg development in women and sperm production in men. Key marker for fertility and menopause evaluation.
Luteinizing Hormone (LH) A pituitary hormone that triggers ovulation in women and stimulates testosterone production in men. Used to evaluate fertility, menstrual irregularities, and reproductive hormone disorders.
DHEA-S The sulfated, more stable form of DHEA. A reliable marker of adrenal androgen production, used to evaluate adrenal function and androgen excess.
T3, Free (fT3) The unbound, biologically active portion of triiodothyronine (T3), the more potent thyroid hormone. Used to evaluate thyroid function.
Magnesium Measures magnesium, a mineral essential for muscle, nerve, heart, and bone function.
T4, Free (fT4) The unbound, biologically active portion of thyroxine (T4), your main thyroid hormone. A core marker for evaluating thyroid function.
Ferritin Reflects your body's stored iron levels. Low levels point to iron deficiency; high levels can indicate iron overload or, since it's also an inflammation marker, other conditions.
Thyroid-Stimulating Hormone (TSH) A pituitary hormone that signals your thyroid to produce hormone. The primary screening test for both underactive and overactive thyroid conditions.
Zinc Measures zinc, a trace mineral essential for immune function, wound healing, and taste/smell.
Prostate-specific antigen (PSA), % Free
Estradiol The main and most potent form of estrogen. Key for reproductive health in women and also present in men; used to evaluate menstrual, fertility, and hormone-related concerns.
HDL-P HDL particle number — counts your actual HDL ('good' cholesterol) particles rather than just the cholesterol they carry, offering a more detailed cardiovascular risk picture.
Prostate-specific antigen (PSA), Free
Methylmalonic Acid A compound that builds up when vitamin B12 is deficient. A more sensitive marker of B12 status than a B12 blood level alone.
Unsaturated Iron Binding Capacity
Free Testosterone The small portion of your testosterone that's unbound and biologically active, considered a more accurate reflection of usable hormone than total testosterone.
Uric Acid A waste product from the breakdown of purines. Elevated levels are linked to gout and kidney stones, and can also reflect metabolic health.
Prostate-Specific Antigen (PSA) A protein made by the prostate gland. Used to help screen for and monitor prostate cancer, though it can also rise with benign prostate conditions.
HDL Large
Thyroglobulin Antibodies (Anti-Tg) An autoantibody against thyroglobulin. Elevated levels are associated with autoimmune thyroid conditions like Hashimoto's thyroiditis, and checked before using thyroglobulin to monitor thyroid cancer.
Apolipoprotein B The main protein found on LDL and other 'bad' cholesterol particles. Considered a strong indicator of cardiovascular risk, since each particle carries one ApoB molecule.
GGT Gamma-glutamyl transferase, a liver enzyme sensitive to bile duct problems and alcohol use, often used alongside other liver tests.
hsCRP
Amylase An enzyme that helps digest carbohydrates, produced mainly by the pancreas and salivary glands. Elevated levels can signal pancreatitis or salivary gland problems.
HDL Size Measures the average size of your HDL ('good' cholesterol) particles, used alongside particle number for a more detailed cardiovascular risk assessment.
Lipoprotein(a) A genetically-determined, LDL-like particle. Elevated levels are an independent, largely inherited risk factor for cardiovascular disease.
LDL Small
Lead (Venous) Measures lead levels in your blood, used to assess exposure to this toxic heavy metal.
Rheumatoid factor
Large VLDL-P Counts the largest VLDL particles, which carry a high amount of triglycerides and are associated with greater cardiovascular risk.
LDL Size Measures the average size of your LDL ('bad' cholesterol) particles; smaller, denser particles are considered more likely to contribute to artery plaque.
Rh Type Identifies whether your blood is Rh-positive or Rh-negative, an important factor for blood transfusions and pregnancy management.
Albumin The main protein made by your liver, which helps balance fluids and carries hormones, vitamins, and medications through your blood. Low levels can point to liver, kidney, or nutrition issues.
Prolactin A pituitary hormone best known for stimulating milk production; also checked to evaluate menstrual irregularities, fertility issues, or pituitary conditions in men and women.
Lipase An enzyme that helps digest fat, produced mainly by the pancreas. Elevated levels are a key marker for pancreatitis.
Antinuclear Antibodies Antibodies that target structures inside your own cells' nuclei. A positive result is a key screening marker for autoimmune conditions like lupus.
Vitamin D, 25-OH, Total The combined measure of both major forms of vitamin D (D2 and D3) in your blood — the standard test used to assess overall vitamin D status.
Leptin A hormone released by fat cells that helps regulate appetite and energy balance. Levels generally rise with increased body fat.
LDL Particle Number
ABO Group Identifies your blood type (A, B, AB, or O) based on antigens on your red blood cells. Essential for safely matching blood for transfusions or transplants.
VLDL Size Measures the average size of your VLDL particles, used alongside particle number for a more detailed cardiovascular risk assessment.
Homocysteine An amino acid byproduct of protein metabolism. Elevated levels are linked to increased cardiovascular risk and can reflect low B vitamin (B12, folate, B6) status.
SHBG (Sex Hormone-Binding Globulin) A protein that binds and transports testosterone and estrogen in your blood, determining how much hormone is 'free' and active. Important for interpreting sex hormone results.
Mercury Measures mercury levels in your blood, used to assess exposure to this toxic heavy metal, often from certain fish or environmental sources.
Testosterone The primary male sex hormone, also present in women in smaller amounts. Evaluated for low testosterone symptoms, fertility, and reproductive hormone imbalances.

QuestAssureD 25-Hydroxy and Calcitriol 1,25-Dihydroxyvitamin D

$63.49

Vitamin D originating from dietary and endogenous sources is converted to 25-hydroxyvitamin D in the liver, and subsequently to 1, 25-dihydroxyvitamin D in the kidney. Measurement of both the 1, 25-Dihydroxy and 25-Hydroxy forms provide insights into a variety of medical conditions such Vitamin D status in renal failure, differential diagnosis of primary, secondary and tertiary hyperparathyroidism. Differential diagnosis of hypercalcemia and type I and II inherited rickets.

Sample type: Serum
Avg. sample processing time: 5 Business days
Require fasting: No

Biomarkers

Vitamin D3, 1,25 (OH)2
Vitamin D, 25-OH, Total The combined measure of both major forms of vitamin D (D2 and D3) in your blood — the standard test used to assess overall vitamin D status.
25-OH Hydroxy Vitamin D (Ergocalciferol D2)
Calcitriol (1,25 di-OH Vitamin D) The active, hormone form of vitamin D that directly regulates calcium absorption. Tested less often than 25-OH vitamin D, mainly for kidney or calcium-regulation disorders.
25-OH Hydroxy Vitamin D (Cholecalciferol D3)
Vitamin D2, 1,25 (OH)2

QuestAssureD™ 25-Hydroxyvitamin D (D2, D3)

$28.49

QuestAssureD™ 25-Hydroxyvitamin D Test - This test measures the levels of Vitamin D in the body, which is crucial for bone health. It checks for Vitamin D activity, except in cases of renal disease. Low levels might indicate a dietary deficiency, poor absorption, or liver issues, leading to bone diseases like rickets and osteomalacia. High levels could cause hypercalcemia. The test specifically measures the two common forms of Vitamin D: 25-OH D3 and 25-OH D2.

Sample type: Serum
Avg. sample processing time: 5 Business days
Require fasting: No

Biomarkers

25-OH Hydroxy Vitamin D (Cholecalciferol D3)
Vitamin D, 25-OH, Total The combined measure of both major forms of vitamin D (D2 and D3) in your blood — the standard test used to assess overall vitamin D status.
25-OH Hydroxy Vitamin D (Ergocalciferol D2)

Vitamin D, 25-OH, Total details

Description

Optimal & Reference range