Postejaculatory Urine Microscopic Examination for Sperm
Use
This test is used in diagnosing retrograde ejaculation, a condition where ejaculated fluids are redirected towards the urinary bladder instead of exiting through the urethra. This can occur due to surgical procedures, medications, diabetes, or male infertility. The test measures the presence of sperm in postmasturbatory urine, which would be absent in the antegrade ejaculate.
Special Instructions
Not provided.
Limitations
This test is developed by LabCorp and its performance characteristics have not been cleared or approved by the FDA. Retrograde ejaculation may be suspected if semen volume is less than 1 mL. The evaluation of postmasturbatory urine is crucial for diagnosing the condition. Specimens must be analyzed within specific timeframes to ensure accurate results.
Methodology
Other
Biomarkers
LOINC Codes
- 49111-8 - Sperm #/area UrnS HPF
- 5767-9 - Appearance Ur
- 5778-6 - Color Ur
- 8248-7 - Sperm UrnS Ql Micro
Result Turnaround Time
2-4 days
Related Documents
For more information, please review the documents below
Specimen
Urine
Volume
10 mL
Minimum Volume
2 mL
Container
Sterile urine cup or BD urine transport tube
Collection Instructions
Immediately after ejaculation, patient should cleanse the penis with water to remove residual semen. Patient should collect urine in clean plastic or glass jar. Care must be taken to include the entire specimen.
Storage Instructions
Refrigerate
Causes for Rejection
Specimen more than 48 hours old when unpreserved/refrigerated or more than 72 hours old for BD transport tube; female specimen; samples tested on the IRIS prior to analysis
Other tests from different labs that may be relevant