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Order your own lab tests —
simple & on your schedule Labs

Labcorp

Labcorp tests

Take control of your health without referrals or insurance. Simply order your labs online, receive your requisition form by email, and bring it with you – printed or on your phone – to any LabCorp draw center.

Your blood draw will be performed at LabCorp, and you will not need to pay a separate fee for phlebotomy. Before scheduling your visit, ensure that your LabCorp requisition matches the information on your ID. Once complete, your secure results will be sent directly to your email.

Instructions
Quest Diagnostics

Quest Diagnostics tests

Skip the insurance hurdles and take charge of your wellness journey. Ordering Quest Diagnostics labs is entirely digital: once you purchase, we’ll instantly email a personalized requisition form to show on your phone or print.

With thousands of locations nationwide, finding a Quest Patient Service Center nearby is easy. The phlebotomy fee is already included at checkout, so there are no surprise costs at the front desk. Just bring a valid photo ID that exactly matches the name on your paperwork. After your visit, your confidential results will be securely delivered straight to your email inbox.

Instructions
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Showing 529–540 of 919 results Found 919 results

Quest Diagnostics

Lactate Dehydrogenase (LDH) Isoenzymes

 $41.49

This panel measures lactate dehydrogenase isoenzymes. Lactate dehydrogenase (LD) is an enzyme found in almost all of the body's cells; elevated levels of this enzyme can be used as a general marker of cell injury. LD isoenzymes are used to determine the source of elevated LDH activity, as each isoenzyme tends to be concentrated in specific body tissues.

More info
Sample type
Serum
Avg. sample processing time
5 Business days
Require fasting
No
Biomarkers
  • Lactate Dehydrogenase (LDH) An enzyme found in many tissues, released when cells are damaged. A general marker used alongside other tests to investigate tissue injury, certain cancers, or red blood cell breakdown.
  • LD1
  • LD2
  • LD3
  • LD4
  • LD5

Lactic Acid, Plasma

 $25.49

Lactic acid is the endproduct of the anaerobic metabolism of glucose. The blood lactic acid concentration is affected by its production in muscle cells and erythrocytes and its rate of metabolism in the liver. During exercise, blood lactate can increase up to ten times of normal levels.

More info
Sample type
Plasma
Avg. sample processing time
5 Business days
Require fasting
No
Biomarkers

Lamb (f88) IgE

 $8.99

This test measures the body's immune response to lamb through the IgE antibodies in your serum. It's particularly useful for identifying allergies to lamb.

More info
Sample type
Serum
Avg. sample processing time
5 Business days
Require fasting
No
Biomarkers

Lamb's Quarters (Goose Foot) (w10) IgE

 $8.99

This test measures the body's immune response to Lamb's Quarters, a common allergen, by assessing the level of specific IgE antibodies in the serum. It helps in identifying allergic reactions to this plant, which is also known as Goose Foot.

More info
Sample type
Serum
Avg. sample processing time
5 Business days
Require fasting
No
Biomarkers

Latex (k82) IgE

 $8.99

This test measures the body's immune response to latex by checking for specific IgE antibodies in the serum. It's crucial for diagnosing latex allergies, which can cause reactions ranging from mild skin irritation to severe, life-threatening conditions.

More info
Sample type
Serum
Avg. sample processing time
5 Business days
Require fasting
No
Biomarkers

Lead

 $14.49

Lead, Whole Blood measures the level of lead exposure in the bloodstream. It is used to assess lead poisoning, which can affect multiple organ systems and is particularly harmful to neurological development in children.

More info
Sample type
Whole Blood
Avg. sample processing time
4 Business days
Require fasting
No
Biomarkers
  • Lead (Venous) Measures lead levels in your blood, used to assess exposure to this toxic heavy metal.

Lemon (f208) IgE

 $8.99

This test measures the body's immune response to lemon, which can help identify if an individual has an allergy to lemons. By analyzing a small serum sample, healthcare providers can determine the presence and severity of an allergic reaction to lemons.

More info
Sample type
Serum
Avg. sample processing time
5 Business days
Require fasting
No
Biomarkers

Lentils (f235) IgE

 $8.99

This test measures the body's immune response to lentils by checking for specific IgE antibodies in the serum. It's useful for identifying potential lentil allergies, helping to guide dietary choices and management strategies for those with suspected food sensitivities.

More info
Sample type
Serum
Avg. sample processing time
5 Business days
Require fasting
No
Biomarkers

Leptin

 $33.99

Leptin is a hormone produced by fat cells that helps regulate appetite and energy balance by signaling satiety to the brain. Abnormal leptin levels can be associated with obesity, metabolic disorders, and appetite regulation issues.

More info
Sample type
Serum
Avg. sample processing time
6 Business days
Require fasting
No
Biomarkers
  • Leptin A hormone released by fat cells that helps regulate appetite and energy balance. Levels generally rise with increased body fat.

Lettuce (f215) IgE

 $8.99

This test measures the body's immune response to lettuce, helping to identify potential lettuce allergies. By analyzing a small serum sample, healthcare providers can understand if an individual's immune system reacts unusually to lettuce, indicating an allergy.

More info
Sample type
Serum
Avg. sample processing time
5 Business days
Require fasting
No
Biomarkers

Leukotriene E4, 24 Hour, Urine

 $503.49

This test is an aid to evaluate patients suspected of having systemic mastocytosis using 24-hour urine collections.

More info
Sample type
Urine
Avg. sample processing time
5 Business days
Require fasting
No
Biomarkers

Leukotriene E4, Random, Urine

 $503.49

This test is an aid to evaluate patients suspected of having systemic mastocytosis using random urine collections.

More info
Sample type
Urine
Avg. sample processing time
5 Business days
Require fasting
No
Biomarkers
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