Epidemic marker of TB –
Correct Answer: Sputum AFB positivity rate
Description: Ans. is 'a' i.e., Sputum AFB Positivity rate o Case finding tools in TB are :-1) Sputum microscopy# It is the method of choice2) Sputum culture# It is 2nd in importance (after sputum microscopy) in a case finding programme.3) Mass miniature radiography# It has been stopped as a general measure of case finding.4) Tuberculin test# It is of little value as a case finding tool as it has no diagnostic value.o The number of bacilli seen in a smear reflects disease severity and patient infectivity.o Therefore, it is important to record the number of bacilli seen in each smear.Number of bacilliResult reportedNo. AFB per 100 oil immersion fields01-9 AFB per 100 oil immersion fieldsScanty (or number AFB seen)10-99 AFB per 100 oil immersion fields+ (1+)1-10 AFB per oil immersion fields++ (2+)> 10 AFB per oil immersion fields+++ (3+)
Category:
Social & Preventive Medicine
Get More
Subject Mock Tests
Practice with over 200,000 questions from various medical subjects and improve your knowledge.
Attempt a mock test nowMock Exam
Take an exam with 100 random questions selected from all subjects to test your knowledge.
Coming SoonGet More
Subject Mock Tests
Try practicing mock tests with over 200,000 questions from various medical subjects.
Attempt a mock test now