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HelpTest Code LAB0249391 Post Vasectomy Check, Semen
Additional Codes
| Mayo Test ID |
|---|
| POSV |
Reporting Name
Post Vasectomy Check, SemenUseful For
Determining absence or presence of sperm postvasectomy
Performing Laboratory
Mayo Clinic Laboratories in Rochester
Specimen Type
SemenShipping Instructions
Specimen must arrive within 24 hours of collection. Send specimen Monday through Thursday only and not the day before a holiday. If holiday falls on a Saturday, holiday will be observed on the preceding Friday. Sunday holidays are observed on the following Monday. Specimen should be collected and packaged as close to shipping time as possible. Laboratory does not perform testing on weekends.
Necessary Information
Include the following information with the specimen:
-Semen volume
-Number of days of sexual abstinence
Specimen Required
Patient Preparation: Patient should have 2 to 7 days of sexual abstinence at the time of semen collection for accurate results.
Container/Tube: Semen Analysis Kit (T178)
Specimen Volume: Total ejaculate
Specimen Minimum Volume
See Specimen Required
Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Semen | Ambient | ||
Reference Values
Zero sperm seen
Day(s) Performed
Monday through Friday
Test Classification
This test has been cleared, approved, or is exempt by the US Food and Drug Administration and is used per manufacturer's instructions. Performance characteristics were verified by Mayo Clinic in a manner consistent with CLIA requirements.CPT Code Information
89321
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| POSV | Post Vasectomy Check, Semen | 50677-4 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| ABSTN | Abstinence | 10587-4 |
| CLST1 | Collection Site | 56816-2 |
| VL53 | Semen Volume | 3160-9 |
| CENT | Centrifuged | 8100-0 |
| SPML1 | Sperm/mL | 51623-7 |
| MOTIL | Motility | 6800-7 |
| GR3 | Grade | 29990-9 |
| CMMT4 | Comment | 48767-8 |
Interpretation
Patients may stop using other methods of contraception when examination of 1 well-mixed postvasectomy semen specimen shows azoospermia or rare nonmotile sperm (RNMS) (≤ 100,000 nonmotile sperm/mL).
The risk of pregnancy after vasectomy is approximately 1 in 2000 for men who have postvasectomy azoospermia or postvasectomy semen analysis (PVSA) showing RNMS.(1)
If >100,000 nonmotile sperm/mL persist beyond 6 months after vasectomy, then trends of serial PVSAs and clinical judgment should be used to decide whether the vasectomy is a failure and whether repeat vasectomy should be considered.(1)
Vasectomy should be considered a failure if any motile sperm are seen on PVSA at 6 months after vasectomy, in which case repeat vasectomy should be considered.
Report Available
1 daySpecimen Retention Time
Not retainedReject Due To
All specimens will be evaluated at Mayo Clinic Laboratories for test suitability.Method Name
Manual