Tests For Bacterial Vaginosis: Results


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Results


Tests for bacterial vaginosis take samples of fluid and cells from the vagina to see if this vaginal infection is present.

A high vaginal pH, clue cells, and a fishy odor usually are enough signs that bacterial vaginosis is present.

Tests for bacterial vaginosis
Normal

No abnormal vaginal discharge is present on vaginal exam.

A wet mount does not show large numbers of bacteria, such as Gardnerella, that cause bacterial vaginosis.

No clue cells are present.

No fishy odor is present when a potassium hydroxide (KOH) solution is added to a sample of vaginal discharge.

Vaginal pH is in the normal range of 3.8 to 4.5.

Abnormal

A bacterial vaginosis infection is present.

  • A thin, grayish white vaginal discharge is present on vaginal exam. The discharge often looks shiny and has small bubbles.
  • A fishy odor is made when a KOH solution is added to a sample of vaginal discharge.
  • Large numbers of the types of bacteria that cause bacterial vaginosis (such as Gardnerella), clue cells, or both are present on wet mount.
  • Vaginal pH is greater than 4.5.

 



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Last updated: March 17, 2008
Author: Caroline Rea, RN, BS, MS
Reviewed By: Kathleen Romito, MD - Family Medicine, Jeanne Marrazzo, MD, MPH - Infectious Disease
Editors: Susan Van Houten, RN, BSN, MBA, Tracy Landauer

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