Feb 21 2011, 05:21 AM
QUOTE(NatBass @ Feb 21 2011, 04:41 AM)
Anyways - Seniors , im sure you'd heard of mantoux test right. 10mm is the normal reading for a person with tb negative? So anything more then 10mm is positive? how do one confirm that he/she has tb? besides chest x-ray? im sure mantoux test can go false-positive due to BGC injection and the air you breathe?
Mantoux test >10mm is positive - confirm with sputum examination if the patient has pulmonary TB, gastric lavage can also be done - particularly in children since they tend to swallow sputum (use Ziehl-Neelson's/AFB staining). Histological/cytological examination of other forms of TB can also be done - eg: skin sample from cutaneous TB, aspirate from TB lymphadenitis, samples from Pot's disease etc etc etc ... there are many forms of TB~
In other words - confirm with lab test. (CSF from TB meningitis may not show any TB bacilli - send CSF sample to biochem department for analysis).
Note: false positive can occur in ppl immunized with BCG.
Added on February 21, 2011, 5:25 amHere is how cutaneous TB looks like (taken in 2009):
This post has been edited by CyberSetan: Feb 21 2011, 05:25 AM
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An anatomy atlas is infinitely more useful than a textbook, especially for labs with wet specimen. But then again, if one of your coursemates can get their hands on a digital copy of say, Netter's, you could just print out the relevant parts needed for a particular lab, instead of lugging the whole atlas around. Guyton has lots of nice-to-know details, but like onelove89 mentioned, the notes from your lecturer should suffice for physio and path (The textbooks are more for referencing)
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