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Epic Test Code POC50 POCT Fern Test, Vaginal

Specimen Type

Vaginal secretion on a sterile swab

Preferred Container

Sterile swab

Reference Values

No ferning: Absence of amniotic fluid
Ferning: Presence of amniotic fluid

Methodology

Microscope

CPT Code

89060

Last Updated

03-Jan-23 MS

Performing Location(s)

Bassett Healthcare Network POC Testing. Only available at POC Approved Testing Locations. 

Limitations

• False positive may occur from specimens contaminated with blood, urine, cervical mucous.
• False negative may occur from prolonged rupture of membranes (greater than 24 hours).
• False negative may occur if only a small volume of volume of fluid has leaked.
 

Available STAT

Only available at POC Approved Testing Locations.

Additional Information

Examine the dried smear under low power without a cover slip.