T4 (Thyroxine), Total details

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T4 (Thyroxine), Total

Labcorp

Broadest draw-site network nationwide.

This test is coming soon at Labcorp.

T4 (Thyroxine), Total

Quest Diagnostics

Same-day appointments in most metros.

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

BiomarkersQuest Diagnostics biomarkers

T4, Total Measures total thyroxine (T4), including both bound and unbound hormone, used in thyroid function evaluation.
Free T4 Index (T7)

$5.99

Description

This test is crucial for diagnosing thyroid conditions such as hypothyroidism (underactive thyroid) and hyperthyroidism (overactive thyroid). By measuring the total level of thyroxine (T4) in the blood, it helps in understanding thyroid function and identifying potential issues.

What patients is this test right for?

This test is typically ordered for individuals showing symptoms of thyroid dysfunction.

Symptoms of Hypothyroidism:

Fatigue
Weight gain
Cold intolerance
Dry skin
Constipation
Depression

Symptoms of Hyperthyroidism:

Weight loss
Heat intolerance
Nervousness
Insomnia
Hand tremors
Irregular heartbeat

Included biomarkers

Biomarkers

T4, Total Measures total thyroxine (T4), including both bound and unbound hormone, used in thyroid function evaluation.
Free T4 Index (T7)

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

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