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Test ID: FER2    
WHO Morphology

Method Description Describes how the test is performed and provides a method-specific reference

A drop of semen is spread on a microscope slide. The slide is then processed with stains that give different colors to different parts of the sperm. Using high-power microscopy, the shape and size of at least 100 sperm are compared to a normal reference sperm.(Scoring is based on a modified method of The World Health Organization Laboratory Manual for the examination of human semen and sperm-cervical mucus interaction. Third Edition. Cambridge University Press, 1992)

PDF Report Indicates whether the report includes an additional document with charts, images or other enriched information


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; 6:30 a.m. to 3:30 p.m.

Send specimen Monday through Thursday only and not the day before a holiday.

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.

1 day

Maximum Laboratory Time Defines the maximum time from specimen receipt at Mayo Medical Laboratories until the release of the test result

4 days

Specimen Retention Time Outlines the length of time after testing that a specimen is kept in the laboratory before it is discarded

Slides are kept for 10 years.

Performing Laboratory Location The location of the laboratory that performs the test