Testicular Function Profile II
Use
The Testicular Function Profile II is used to evaluate the function of the testes by measuring levels of key hormones involved in male reproductive health. This includes the assessment of follicle-stimulating hormone (FSH), luteinizing hormone (LH), and testosterone. These hormones play critical roles in the regulation of spermatogenesis, testosterone production, and overall testicular function.
Special Instructions
This test may exhibit interference when collected from individuals consuming high doses of biotin. It is advised to stop biotin supplementation at least 72 hours before sample collection to avoid interference with test results.
Limitations
The presence of biotin in high concentrations in the blood can interfere with the accurate measurement of FSH, LH, and testosterone in this profile. Patients should be carefully screened for biotin use to ensure the validity of the test results. Stability of specimens at different temperatures should be taken into consideration since improper storage may affect hormone levels.
Methodology
Immunoassay
Biomarkers
LOINC Codes
- 10501-5
- 15067-2
- 2986-8
- 2991-8
- 15432-8
Result Turnaround Time
4-5 days
Related Documents
For more information, please review the documents below
Specimen
Serum
Volume
3 mL
Minimum Volume
1.5 mL
Container
Red-top tube or gel-barrier tube
Collection Instructions
If a red-top tube is used, transfer separated serum to a plastic transport tube.
Patient Preparation
Patients should stop biotin consumption at least 72 hours prior to sample collection.
Storage Instructions
Room temperature
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | 14 days |
| Refrigerated | 14 days |
| Frozen | 14 days |