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23031 Wet Prep

Wet Prep
Test Code: WET
Synonyms/Keywords
​Trichomonas Exam
Useful For
​The wet prep is most often used to identify Trichomonas vaginalis and yeast in urogenital specimens.
Specimen Requirements
Fasting Required Specimen Type Preferred Container/Tube Acceptable Container/Tube Specimen Volume Specimen Minimum Volume
(allows for 1 repeat)
Pediatric Minimum Volume
(no repeat)
No​ Cervical or Vaginal secretions​
Sterile, leakproof container or
wet prep tube​
Collection Processing Instructions
Wet prep (WET) analysis is no longer performed on the Marshfield campus. If needed, please collect a vaginal specimen in the UVE collection kit and order Vaginitis Panel, NAT (VAGNAT).

Swabs should be washed and expressed in a small amount of sterile saline using a wet prep tube (available from Central Supply). Organism degradation begins after approximately 30 minutes of collection. Specimens may not be stored. Transport specimens immediately to the laboratory.
Specimen Stability Information
Specimen Type Temperature Time
​Sterile container Room Temperature​ 30 minutes​
Wet prep tube​ Room Temperature​ 30 minutes​
Rejection Criteria
Specimens received greater than 30 minutes post collection
Performing Laboratory Information
Performing Location Day(s) Test Performed Analytical Time Methodology/Instrumentation
​Bloomer ​​Monday through Friday ​Less than 2 hours​ ​Light Microscopy​
​Cadott ​​Monday through Friday ​Less than 2 hours​ ​Light Microscopy​
​Chetek ​​Monday through Friday ​Less than 2 hours​ ​Light Microscopy​
​Chippewa Falls ​​Monday through Friday ​Less than 2 hours​ ​Light Microscopy​
​Colby/Abbotsford ​​Monday through Friday ​Less than 2 hours​ ​Light Microscopy​
​Cornell ​​Monday through Friday ​Less than 2 hours​ ​Light Microscopy​
​Cumberland ​​Monday through Friday ​Less than 2 hours​ ​Light Microscopy​
​Diagnostic Treatment Center ​Monday through Sunday​ ​Less than 2 hours​ ​Light Microscopy​
​Eagle River ​​Monday through Friday ​Less than 2 hours​ ​Light Microscopy​
​Eau Claire ​Monday through Sunday​ ​Less than 2 hours​ ​Light Microscopy​
​Flambeau Hospital ​Monday through Sunday​ ​Less than 2 hours​ ​Light Microscopy​
​Hayward ​​Monday through Sunday ​Less than 2 hours​ ​Light Microscopy​
​Ladysmith Medical Center ​​Monday through Friday ​Less than 2 hours​ ​Light Microscopy​
​Lake Hallie ​Monday through Sunday​ ​Less than 2 hours​ ​Light Microscopy​
​Lakeview Medical Center ​Monday through Sunday​ ​Less than 2 hours​ ​Light Microscopy​
Menomonie​ ​​Monday through Friday ​Less than 2 hours​ ​Light Microscopy​
​Merrill ​​Monday through Saturday ​Less than 2 hours​ ​Light Microscopy​
​Minocqua ​Monday through Sunday​ ​Less than 2 hours​ ​Light Microscopy​
​Mosinee ​​Monday through Friday ​Less than 2 hours​ ​Light Microscopy​
​Oakwood ​​Monday through Friday ​Less than 2 hours​ ​Light Microscopy​
​Phillips ​​Monday through Friday ​Less than 2 hours​ ​Light Microscopy​
Rhinelander​ ​Monday through Friday ​Less than 2 hours ​Light Microscopy
Stettin​ ​​Monday through Friday ​Less than 2 hours​ ​Light Microscopy​
​Stevens Point ​​Monday through Friday ​Less than 2 hours​ ​Light Microscopy​
Wausau​ ​Monday through Sunday​ ​Less than 2 hours​ ​Light Microscopy​
​Wisconsin Rapids ​​Monday through Friday ​Less than 2 hours​ ​Light Microscopy​
​Wittenberg ​Monday through Friday ​Less than 2 hours​ ​Light Microscopy​
Reference Range Information
Performing Location Reference Range
All Performing Sites Negative​
Outreach CPTs
CPT Modifier
(if needed)
Quantity Description Comments
87210​ ​Wet mount
Synonyms/Keywords
​Trichomonas Exam
Ordering Applications
Ordering Application Description
​Centricity

​a. Stain Wet Prep Exam

b. Wet Prep

​Cerner ​Wet Prep
If the ordering application you are looking for is not listed, contact your local laboratory for assistance.
Specimen Requirements
Fasting Required Specimen Type Preferred Container/Tube Acceptable Container/Tube Specimen Volume Specimen Minimum Volume
(allows for 1 repeat)
Pediatric Minimum Volume
(no repeat)
No​ Cervical or Vaginal secretions​
Sterile, leakproof container or
wet prep tube​
Collection Processing
Wet prep (WET) analysis is no longer performed on the Marshfield campus. If needed, please collect a vaginal specimen in the UVE collection kit and order Vaginitis Panel, NAT (VAGNAT).

Swabs should be washed and expressed in a small amount of sterile saline using a wet prep tube (available from Central Supply). Organism degradation begins after approximately 30 minutes of collection. Specimens may not be stored. Transport specimens immediately to the laboratory.
Specimen Stability Information
Specimen Type Temperature Time
​Sterile container Room Temperature​ 30 minutes​
Wet prep tube​ Room Temperature​ 30 minutes​
Rejection Criteria
Specimens received greater than 30 minutes post collection
Useful For
​The wet prep is most often used to identify Trichomonas vaginalis and yeast in urogenital specimens.
Reference Range Information
Performing Location Reference Range
All Performing Sites Negative​
For more information visit:
Performing Laboratory Information
Performing Location Day(s) Test Performed Analytical Time Methodology/Instrumentation
​Bloomer ​​Monday through Friday ​Less than 2 hours​ ​Light Microscopy​
​Cadott ​​Monday through Friday ​Less than 2 hours​ ​Light Microscopy​
​Chetek ​​Monday through Friday ​Less than 2 hours​ ​Light Microscopy​
​Chippewa Falls ​​Monday through Friday ​Less than 2 hours​ ​Light Microscopy​
​Colby/Abbotsford ​​Monday through Friday ​Less than 2 hours​ ​Light Microscopy​
​Cornell ​​Monday through Friday ​Less than 2 hours​ ​Light Microscopy​
​Cumberland ​​Monday through Friday ​Less than 2 hours​ ​Light Microscopy​
​Diagnostic Treatment Center ​Monday through Sunday​ ​Less than 2 hours​ ​Light Microscopy​
​Eagle River ​​Monday through Friday ​Less than 2 hours​ ​Light Microscopy​
​Eau Claire ​Monday through Sunday​ ​Less than 2 hours​ ​Light Microscopy​
​Flambeau Hospital ​Monday through Sunday​ ​Less than 2 hours​ ​Light Microscopy​
​Hayward ​​Monday through Sunday ​Less than 2 hours​ ​Light Microscopy​
​Ladysmith Medical Center ​​Monday through Friday ​Less than 2 hours​ ​Light Microscopy​
​Lake Hallie ​Monday through Sunday​ ​Less than 2 hours​ ​Light Microscopy​
​Lakeview Medical Center ​Monday through Sunday​ ​Less than 2 hours​ ​Light Microscopy​
Menomonie​ ​​Monday through Friday ​Less than 2 hours​ ​Light Microscopy​
​Merrill ​​Monday through Saturday ​Less than 2 hours​ ​Light Microscopy​
​Minocqua ​Monday through Sunday​ ​Less than 2 hours​ ​Light Microscopy​
​Mosinee ​​Monday through Friday ​Less than 2 hours​ ​Light Microscopy​
​Oakwood ​​Monday through Friday ​Less than 2 hours​ ​Light Microscopy​
​Phillips ​​Monday through Friday ​Less than 2 hours​ ​Light Microscopy​
Rhinelander​ ​Monday through Friday ​Less than 2 hours ​Light Microscopy
Stettin​ ​​Monday through Friday ​Less than 2 hours​ ​Light Microscopy​
​Stevens Point ​​Monday through Friday ​Less than 2 hours​ ​Light Microscopy​
Wausau​ ​Monday through Sunday​ ​Less than 2 hours​ ​Light Microscopy​
​Wisconsin Rapids ​​Monday through Friday ​Less than 2 hours​ ​Light Microscopy​
​Wittenberg ​Monday through Friday ​Less than 2 hours​ ​Light Microscopy​
For billing questions, see Contacts
Outreach CPTs
CPT Modifier
(if needed)
Quantity Description Comments
87210​ ​Wet mount
For most current information refer to the Marshfield Laboratory online reference manual.