A client with active tuberculosis (TB) disease is prescribed a multidrug regimen. What is the primary purpose of using multiple drugs to treat TB?
To reduce drug resistance
To minimize side effects
To shorten the treatment duration
To improve patient compliance
The Correct Answer is A
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.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A) Correct. Sputum samples are often most concentrated with TB bacteria when collected in the morning, as they have had time to accumulate overnight.
B) Incorrect. Rinsing the mouth before collecting sputum may dilute the sample and reduce its accuracy.
C) Incorrect. Deep coughing is encouraged to obtain samples from the lower respiratory tract, where TB bacteria are more likely to be present.
D) Incorrect. Sputum samples should be collected in specific containers designed for this purpose to maintain sample integrity and avoid contamination.
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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