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Testosterone Total Blood Test, Male Only

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Father's Day Special: Save 20% with coupon code DADS20.

The Testosterone Total Blood Test, Male Only, measures total testosterone hormone levels in the blood to detect an abnormal level or hormone imbalance.


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Test Code:


CPT Code(s):



Immunoassay (IA)




No special preparation is required.

Test Results:

1-3 days. May take longer based on weather, holiday or lab delays.

Walk-In Lab is prohibited from selling Quest tests to residents in the following states:AZ, NY, NJ, RI

What is the purpose of this test?

Order this Testosterone Total Blood Test, Male Only, to measure total testosterone hormone levels in the blood to detect an abnormal level or hormone imbalance. Testosterone are primary hormones essential to developing male physical features and reproductive functions, such as:

  • Development of body hair, muscle growth, and a deepening voice
  • Regulate sex drive, sustain muscle mass, and helps produce sperm in the testes (testicles)


It should be noted that women also make testosterone but in much smaller amounts in the ovaries and adrenal glands. There are two major forms of testosterone in the body commonly measured to help diagnose specific health problems: free and total testosterone. Free testosterone is the active or unbound form of testosterone that acts as a receptor to cells in the body. However, total testosterone includes both the unbound testosterone and bound testosterone that is attached to proteins (SHBG or albumin).


Individuals may order this Testosterone Total Serum Test to:

  • Determine the cause of early or late puberty in children and teens
  • Determine the cause of infertility 
  • Monitor infertility treatments
  • Monitor the health of transgender men taking testosterone for gender-affirming hormone therapy


What conditions cause abnormally low testosterone levels?

Several conditions may affect testosterone levels. Therefore, discussing concerns with a healthcare provider and using blood tests such as this to help monitor hormone levels is essential. For example, testosterone levels may be abnormally low due to conditions such as:

  • Thyroid problems
  • A tumor detected in the ovaries, adrenal glands, or testicles
  • Autoimmune disorders
  • A pituitary gland disorder
  • Chronic or recurring illness (kidney or liver disease, lung disease)
  • Acute infections
  • Injury to the testicles


When should I order a Testosterone Total Blood Test?

Individuals may order a Testosterone Total Blood Test if they have experienced symptoms associated with a testosterone deficiency or hormone imbalance, such as: 

  • Loss of sex drive
  • Erectile dysfunction or "ED"
  • Infertility
  • Enlarged breasts
  • Lack of face or body hair
  • Brittle bones or anemia without a known cause
  • Muscle weakness

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