Sign in →

Test Code POSTVA Post Vasectomy Check, Semen LAB891

Test Method

Microscopy

 

Performance

Testing is performed Monday through Sunday.

Testing is typically completed the same day the specimen arrives
at the testing site.

Specimen Requirement

  1. Semen should be collected after a 2-7 day period of
    abstinence.
  2. Specimens should be transported to the lab immediately. Do not
    refrigerate.  

Useful For

According to the American Urological Association Guidelines:

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 2,000
for men who have postvasectomy azoospermia or postvasectomy semen
analysis (PVSA) showing RNMS.

If >100,000 nonmotile sperm/mL persist beyond 6 months after
vasectomy, then trends of serial PVSA’s and clinical judgment
should be used to decide whether the vasectomy is a failure and
whether repeat vasectomy should be considered. 

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.

Reference Values

No Sperm Seen.

 

CPT Code Information

89321 Semen Analysis; Sperm presence and motility of sperm.

LOINC Code Information

12256-4 Spermatozoa [#/area] In Semen By Microscopy High Power
Field-Post Vasectomy

Additional Specimen Collection Information

Semen specimen is collected by masturbation into a new clean
plastic container. If there is any question regarding the
suitability of a specimen contact the physician or a pathologist
before rejecting it.