A 40-year old patient presents with symptoms suggestive of tuberculosis (TB). What is the confirmatory test for TB?
Interferon Gamma Release Assays (IGRAS)
Sputum culture
Tuberculin Skin Test (TST)
Chest X-ray
The Correct Answer is B
A. Interferon Gamma Release Assays (IGRAs): IGRAs are useful for detecting TB infection but do not confirm active TB disease. They measure the immune response to TB bacteria but don’t differentiate between latent and active infection.
B. Sputum culture: Sputum culture is the gold standard for confirming active TB because it identifies Mycobacterium tuberculosis bacteria directly, confirming active infection.
C. Tuberculin Skin Test (TST): The TST can indicate TB infection but cannot distinguish between latent and active TB, making it unsuitable as a confirmatory test for active disease.
D. Chest X-ray: A chest X-ray can show signs suggestive of TB but cannot confirm the presence of TB bacteria, so it is not definitive for diagnosing active TB.
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Correct Answer is D
Explanation
A. Irritable bowel syndrome. IBS management typically involves dietary changes, fiber, and stress management, not antibiotics or clear liquids.
B. Chronic diverticulosis. Diverticulosis, when asymptomatic, does not require antibiotics. Treatment focuses on a high-fiber diet to prevent diverticulitis.
C. Complicated diverticulitis with abscess. Complicated diverticulitis may require IV antibiotics, hospitalization, or even surgical intervention if there are abscesses.
D. Uncomplicated diverticulitis. Uncomplicated diverticulitis, without abscess or perforation, is treated with oral antibiotics and a clear liquid diet for bowel rest.
Correct Answer is A
Explanation
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B. "Only people with a family history of heart disease are at risk for CAD." Although a family history can increase risk, many other factors, like high blood pressure, smoking, high cholesterol, and lifestyle, contribute to CAD risk.
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