Test ID: POSV
Post Vasectomy Check, Semen
Secondary ID 
A test code used for billing and in test definitions created prior to November 2011
NY State Approved Indicates the status of NY State approval and if the test is orderable for NY State clients.
Useful For Suggests clinical disorders or settings where the test may be helpful
Determining absence or presence of sperm post vasectomy
Method Name A short description of the method used to perform the test
Manual
Reporting Name A shorter/abbreviated version of the Published Name for a test; an abbreviated test name
Aliases Lists additional common names for a test, as an aid in searching
AIH
Post Vasectomy
Sperm Analysis
Specimen Type Describes the specimen type needed for testing
Specimen Required Defines the optimal specimen. This field describes the type of specimen required to perform the test and the preferred volume to complete testing. The volume allows automated processing, fastest throughput and, when indicated, repeat or reflex testing.
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.
Container/Tube: Semen Analysis Kit (Supply T178)
Specimen Volume: Total ejaculate
Collection Instructions: Patient should have 2 to 7 days of sexual abstinence at the time of semen collection for accurate results.
Forms: If not ordering electronically, submit a General Request Form (Supply T239) with the specimen.
Specimen Minimum Volume Defines the amount of specimen required to perform an assay once, including instrument and container dead space. Submitting the minimum specimen volume makes it impossible to repeat the test or perform confirmatory or perform reflex testing. In some situations, a minimum specimen volume may result in a QNS (quantity not sufficient) result, requiring a second specimen to be collected.
Reject Due To Identifies specimen types and conditions that may cause the specimen to be rejected
| Hemolysis | NA |
| Lipemia | NA |
| Icterus | NA |
| Other | NA |
Specimen Stability Information Provides a description of the temperatures required to transport a specimen to the laboratory. Alternate acceptable temperature(s) are also included.
| Specimen Type | Temperature | Time |
|---|---|---|
| Semen | Ambient | |
Clinical Information Discusses physiology, pathophysiology, and general clinical aspects, as they relate to a laboratory test
Following a vasectomy, sperm may be found in the semen for 6 weeks to 3 months or longer. Regular ejaculation (every 3-4 days) may eliminate sperm from the reproductive tract more quickly.
To check for the absence of sperm, semen should be evaluated for the presence of sperm 2 months post vasectomy and after a minimum of 10 ejaculations. Because the sperm count may be very low, the semen is centrifuged for concentration purposes.
A negative result from 2 consecutive specimens collected 2 weeks apart generally indicates contraception is not necessary. Occasional cases have been reported where there is intermittent presence of sperm in the semen. Recanalization or incomplete 1-sided transection may be the cause.
Reference Values Describes reference intervals and additional information for interpretation of test results. May include intervals based on age and sex when appropriate. Intervals are Mayo-derived, unless otherwise designated. If an interpretive report is provided, the reference value field will state this.
Zero sperm seen
Interpretation Provides information to assist in interpretation of the test results
No sperm cells are anticipated. If present, their concentration and motility are reported.
A negative result from 2 consecutive specimens collected 2 weeks apart generally indicates contraception is not necessary. Occasional cases have been reported where there is intermittent presence of sperm in the semen. Recanalization or incomplete 1-sided transection may be the cause.
Cautions Discusses conditions that may cause diagnostic confusion, including improper specimen collection and handling, inappropriate test selection, and interfering substances
No significant cautionary statements.
Method Description Describes how the test is performed and provides a method-specific reference
Seminal fluid is examined microscopically for sperm. Specimen is centrifuged if no sperm are seen and re-examined for presence or absence of sperm. If sperm are present, the number and whether or not they are moving is assessed and reported.(Keel BA, Webster BW: CRC Handbook of the Laboratory Diagnosis and Treatment of Infertility. Boca Raton, FL, CRC Press, 1990)
Day(s) and Time(s) Test Performed Outlines the days and times the test is performed. This field reflects the day and time the sample must be in the testing laboratory to begin the testing process and includes any specimen preparation and processing time required before the test is performed. Some tests are listed as continuously performed, which means assays are performed several times during the day.
Monday through Friday; Upon arrival
Analytic Time Defines the amount of time it takes the laboratory to setup and perform the test. This is defined in number of days. The shortest interval of time expressed is "same day/1 day," which means the results may be available the same day that the sample is received in the testing laboratory. One day means results are available 1 day after the sample is received in the laboratory.
Maximum Laboratory Time Defines the maximum time from specimen receipt at Mayo Medical Laboratories until the release of the test result
Specimen Retention Time Outlines the length of time after testing that a specimen is kept in the laboratory before it is discarded
Performing Laboratory Location The location of the laboratory that performs the test
Test Classification Provides information regarding the medical device classification for laboratory test kits and reagents. Tests may be classified as cleared or approved by the US Food and Drug Administration (FDA) and used per manufacturer's instructions, or as products that do not undergo full FDA review and approval, and are then labeled as an Analyte Specific Reagent (ASR), Investigation Use Only (IUO) product, or a Research Use Only (RUO) product.
CPT Code Information Provides guidance in determining the appropriate Current Procedural Terminology (CPT) code(s) information for each test or profile. The listed CPT codes reflect Mayo Medical Laboratories interpretation of CPT coding requirements. It is the responsibility of each laboratory to determine correct CPT codes to use for billing.
89321
LOINC® Code Information Provides guidance in determining the Logical Observation Identifiers Names and Codes (LOINC) values for the result codes returned for this test or profile.
| Result ID | Reporting Name | LOINC Code |
|---|---|---|
| ABSTN | Abstinence | 10587-4 |
| CLST1 | Collection Site | N/A |
| VL53 | Semen Volume | 3160-9 |
| CENT | Centrifuged | N/A |
| SPML1 | Sperm/mL | 9780-8 |
| MOTIL | Motility | 6800-7 |
| GR3 | Grade | N/A |
| CMMT4 | Comment | N/A |
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