Bleeding Time
| The Bleeding Time is a measure of
how quickly blood clots, using platelets, coagulation factors, and small
vessel vasospasm.
A small (1-2 mm deep) stab wound is made in the earlobe (Duke
technique) or the forearm (Ivy technique). The wound is blotted every 30
seconds with gauze. When all bleeding has stopped, the test is completed.
The bleeding time is the time from the stab wound to the time that no
further bleeding is detectable.
Prolongation of Bleeding Time is seen in:
- Thrombocytopenia
- Platelet malfunction (aspirin)
- Abnormal clotting factors
- Hypofibrinogenemia
- DIC
|
Normal Values*
| Earlobe (Duke) |
< 8 minutes |
|
Forearm (Ivy) |
<9.5 minutes |
*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
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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.
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Operational Medicine 2001
Contents
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