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.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
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.
QUESTIONS
Correct Answer is B
Explanation
A) Incorrect. A complete blood count (CBC) may reveal abnormalities associated with TB, but it does not directly confirm the presence of Mycobacterium tuberculosis in sputum samples.
B) Correct. Polymerase chain reaction (PCR) is a molecular test that can detect the genetic material of Mycobacterium tuberculosis in sputum samples, providing a confirmatory diagnosis.
C) Incorrect. The tuberculin skin test (TST) is a screening test for TB infection, not a test for confirming active disease in sputum samples.
D) Incorrect. Gram stain is a laboratory technique used to visualize the characteristics of bacterial cells but is not specific for Mycobacterium tuberculosis.
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