A client is undergoing diagnostic testing for tuberculosis (TB) and asks the nurse about the purpose of a chest computed tomography (CT) scan. What is the nurse's best response?
"A CT scan can confirm the presence of TB bacteria in the lungs."
"A CT scan is used to screen for TB infection in the bloodstream."
"A CT scan provides detailed images of the chest to assess lung involvement and detect complications."
"A CT scan is not typically used in TB diagnosis."
The Correct Answer is C
A) Incorrect. A CT scan does not directly confirm the presence of TB bacteria but provides detailed images of the chest.
B) Incorrect. A CT scan is not used as a primary screening tool for TB infection in the bloodstream.
C) Correct. Chest CT scans are valuable for assessing the extent of lung involvement, detecting complications such as cavities or pleural effusions, and guiding treatment decisions in TB cases.
D) Incorrect. CT scans are commonly used in the evaluation and management of TB, especially for assessing lung abnormalities.
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Related Questions
Correct Answer is D
Explanation
A) Incorrect. Avoiding close contact alone may not be sufficient, as TB is primarily transmitted through the inhalation of respiratory droplets.
B) Incorrect. While wearing a surgical mask may offer some protection, it is not foolproof, especially in high-burden areas.
C) Incorrect. The BCG vaccine provides some protection against severe forms of TB in children but is not considered highly effective for preventing TB in adults.
D) Correct. Following good respiratory hygiene and avoiding crowded, poorly ventilated areas are essential measures to reduce the risk of TB transmission in high-burden areas.
Correct Answer is A
Explanation
A) Correct. Using multiple drugs to treat TB reduces the risk of drug resistance development, as it targets the bacteria from different angles and makes it harder for them to become resistant to one or more drugs.
B) Incorrect. While using multiple drugs may help manage side effects by spreading the burden of treatment, the primary purpose is to prevent drug resistance.
C) Incorrect. Shortening the treatment duration is a goal, but it is not the primary purpose of using multiple drugs.
D) Incorrect. Although improving patient compliance is important, the primary purpose of using multiple drugs is to reduce drug resistance.
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