Menu

An expert resource for medical professionals
Provided FREE as a service to women’s health

The Alliance for
Global Women’s Medicine
A worldwide fellowship of health professionals working together to
promote, advocate for and enhance the Welfare of Women everywhere

Welfare of Women

The Global Library of Women’s Medicine
Clinical guidance and resources

A vast range of expert online resources. A FREE and entirely CHARITABLE site to support women’s healthcare professionals

The Global Academy of Women’s Medicine
Teaching, research and Diplomates Association

Menu

Laboratory Tests

This section provides detailed information on a wide range of laboratory tests relevant to women's medicine

A rapid reference

pH

pH is a measure of the acid-base balance of whatever substance is being tested.

Vaginal secretions are normally slightly acid (pH <5.0). 

In testing for the presence of amniotic fluid (during pregnancy, to rule in/out ruptured membranes), the more basic amniotic fluid will turn nitrazine paper a dark blue, indicating a pH of >6.0, and confirming ruptured membranes.

In testing for the presence of bacterial vaginosis, vaginal infections with anaerobic bacteria are often associated with a pH >5.0.

Normal Values

/resources/glowm/graphics/labs/NitrazinePositive250.jpg (13493 bytes)