PPD
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The PPD is a skin test that screens for the presence of antibodies against
tuberculosis proteins.
Tests are normally negative. A positive test indicates current active
infection, previous infection, or enough previous exposure (without clinical
infection) to develop antibodies against tuberculosis.
The test is read 48-72 hours after intradermal injection. The diameter of
induration (the "zone") is measured.
A variety of factors can lead to false positives or false negatives.
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TB Skin Testing Video
Video demonstrating how to
perform and read TB skin tests. Available as a download and on DVD
www.brooksidepress.org |
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Normal Values*
| |
Zone diameter |
| Negative |
< 5 mm |
| Intermediate |
5-10 mm |
| Positive |
>10 mm |
*These are general values taken from a variety of
sources. The actual normal values may vary from lab to lab and from one
type of testing protocol to another.
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Approved for public release;
Distribution is unlimited.
The listing of any non-Federal product in this CD is not an endorsement of the
product itself, but simply an acknowledgement of the source.
Bureau of Medicine and Surgery
Department of the Navy
2300 E Street NW
Washington, D.C
20372-5300 |
Operational Medicine
Health Care in Military Settings
CAPT Michael John Hughey, MC, USNR
NAVMED P-5139
January 1, 2001 |
United States Special Operations
Command
7701 Tampa Point Blvd.
MacDill AFB, Florida
33621-5323 |
*This web version is provided by
The Brookside Associates Medical Education Division. It contains
original contents from the official US Navy NAVMED P-5139, but has been
reformatted for web access and includes advertising and links that were not
present in the original version. This web version has not been approved by the
Department of the Navy or the Department of Defense. The presence of any
advertising on these pages does not constitute an endorsement of that product or
service by either the US Department of Defense or the Brookside Associates. The
Brookside Associates is a private organization, not affiliated with the United
States Department of Defense.
Contact Us · · Other
Brookside Products
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Operational Medicine 2001
Contents
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