| Test Name: |
TESTOSTERONE, FREE (CALCULATED) AND TOTAL |
| Test Code: |
2124738 |
| CPT Code(s): |
84270
82040
84403
|
| Test Includes: |
SHBG
Albumin
Total Testosterone
Free Testosterone, Calculated |
| Preferred Specimen: |
4ml Serum |
| Container: |
SST Gold Top |
| Minimum Volume: |
3ml |
| Collection Instructions: |
Allow specimen to clot completely
Centrifuge within 2h of collection |
| Transport Temperature: |
Refrigerated |
| Stability: |
72h |
| Limitations: |
Pediatric patients or patients expected to have low testosterone should be evaluated using an alternative method |
| Additional Information: |
Active: 11/18/25Updated 5/20/26 |
| Schedule: |
Monday - Sunday
Results available within one day of receipt of specimen |
| Method: |
Calculated test |
| Performing Lab: |
HealthLab |
| Clinical Significance: |
Free testosterone is calculated using the Vermeulen formula utilizing the total testosterone, sex hormone-binding globulin and albumin |
| Department: |
Chemistry |
| Use: |
This test used to determine free testosterone levels in adult males or individuals on testosterone therapy |
| Reference Ranges: |
66-309 pg/mL |
|
The CPT codes included in this publication are in accordance with Current Procedural Terminology, a publication of the American Medical Association. CPT codes are provided here for the convenience of our clients; however, correct coding often varies from one carrier to another, and HealthLab may bill specific carriers using codes other than those shown. Clients who bill for services should verify the code(s) with the applicable payor to confirm that their use is appropriate in each case.
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| Test Type: |
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