Hess Test aka Rumpel-Leede test
With Dengue here and there in Penang, I wanted to know how to actually do a proper Hess Test. Here is what I found so far, do add to it if you have more experience.
Hess Test
"In vivo assessment of collagen matrix, vascular endothelium and platelet adhesion and aggregation
A syphgomomanometer is inflated to between the systolic and the diastolic pressures for 10 minutes. Normal less than 15 petechiae would occur in a 5cm diameter circle."
posted by Doc @ 6:03 PM
3 comments
3 Comments:
Thank you very much, very helpful. I was finding out how to do it.
A tourniquet test (also known as a Rumpel-Leede Capillary-Fragility Test or simply a capillary fragility test) determines capillary fragility. It is a clinical diagnostic method to determine a patient's haemorrhagic tendency. It assesses fragility of capillary walls and is used to identify thrombocytopenia (a reduced platelet count).
The test is defined by the WHO as one of the necessary requisites for diagnosis of Dengue fever. A blood pressure cuff is applied and inflated to a point between the systolic and diastolic blood pressures for five minutes. The test is positive if there are more than 20 petechiae per square inch (a petechia is a small red or purple spot on the body, caused by a minor hemorrhage).
This test does not have high specificity. Interfering factors with this test are women who are premenstrual, postmenstrual and not taking hormones, or those with sun damaged skin, since all will have increased capillary fragility.(Pagana, & Pagana, 1998; Tsai, 2000).
Quoted from wikipedia
its useful.tq
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