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Weekly Testosterone (Serum) with Mass Concentration Measurement

Published: August 9, 2026Updated: August 16, 2026

This test measures the amount of testosterone, a key male sex hormone, over a weekly period in your blood serum. Testosterone plays a role in muscle and bone development, red blood cell production, and sexual function.

Quick summary

["Understanding your testosterone levels over time can help identify hormonal imbalances or trends in your health."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 16, 2026Editorial policy

Key facts at a glance

LOINC
17686-7
Short code
Testost Wkly Bnd SerPl-mCnc
Synonyms
Testost Wkly Bnd SerPl-mCnc
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Specimen volume
5 mL
Stability
Room temperature: 4h, Refrigerated: 24h, Frozen: 7d
Hemolysis max
500
Lipemia max
1000
Icterus max
500
TAT
4–24 hours
Order
routine

Why This Test Might Be Ordered

Your healthcare provider may recommend this test if you have symptoms like low libido, fatigue, or changes in body hair, especially if they suspect hormonal issues. It could also be part of a broader evaluation for conditions like hypogonadism (low testosterone) or fertility concerns.

What to Expect Before the Test

No special preparation is needed for this test. You may have a simple blood draw, typically done in a clinic or lab. If you’re taking certain medications (like steroids), let your provider know beforehand.

What the Results Mean

Results provide a weekly average of testosterone levels in your blood. While specific ranges vary by lab, they help track trends over time rather than single-point measurements. Your provider will interpret these results in the context of your symptoms and medical history.

Common Reasons for Monitoring

Regular monitoring of testosterone levels can help manage conditions like delayed puberty, infertility, or chronic illnesses that affect hormone production. It may also be used in research or clinical trials studying hormonal health.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Weekly Testosterone Profile

Frequently asked questions

How often should I get this test?
The frequency depends on your health needs. If you have a known condition affecting testosterone, your provider may recommend testing every few months or as needed. For general wellness, occasional monitoring may be advised.
What if my results are outside the expected range?
If results are abnormal, your provider will discuss potential causes, such as hormonal imbalances, medications, or underlying health issues. They may adjust treatment or recommend further testing.
Does diet or exercise affect this test?
Yes, lifestyle factors like diet, exercise, and stress can influence testosterone levels. Maintaining a balanced diet, regular physical activity, and managing stress may support healthier hormone levels.
  1. 1
    MedlinePlus — Laboratory TestsSource
  2. 2
    Lab Tests OnlineSource
  3. 3
    Mayo Clinic — Tests & ProceduresSource

Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.

This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy