A 24-year-old female asked:

A tuberculosis patient was standing in front of me and talking loudly that his saliva coming out. will i catch tb? the patient has recently done tb test report says sputum tb not detected but doctor says on xray some black line is present on chest?

1 doctor answer2 doctors weighed in
Dr. Amrita Dosanjh
Pediatric Allergy and Asthma 38 years experience
Please obtain a blood test to detect TB exposure in 4 weeks to 12 weeks post exposure. A skin test is also acceptable. If positive, a chest x ray may be performed. Watch for signs of cough,fever and weight loss. Discuss whether he is being treated for latent or active TB? There are many conditions that cause x ray changes
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Last updated Mar 17, 2023


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