A nurse is educating a client about the diagnostic evaluation for tuberculosis (TB). Which test is commonly used to screen for TB infection and is administered by injecting a small amount of purified protein derivative (PPD) under the skin?
Chest X-ray
Sputum culture
Mantoux tuberculin skin test (TST)
Computed tomography (CT) scan
The Correct Answer is C
A) Incorrect. Chest X-rays are often used to assess lung involvement in TB but are not a primary screening test for TB infection.
B) Incorrect. Sputum culture is used to confirm the presence of TB bacteria in individuals with suspected active TB disease.
C) Correct. The Mantoux TST is a common screening test for TB infection. A small amount of PPD is injected under the skin, and the reaction is assessed after 48-72 hours.
D) Incorrect. CT scans may be used in TB diagnosis but are not typically used for initial screening of TB infection.
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Related Questions
Correct Answer is C
Explanation
A) Incorrect. It is not recommended to skip doses, but if the client experiences side effects, they should inform their healthcare provider rather than discontinuing treatment without guidance.
B) Incorrect. TB treatment must be completed in its entirety, even if the client starts to feel better. Stopping treatment prematurely can lead to drug resistance and a relapse of the disease.
C) Correct. Taking medications consistently and for the full duration of treatment is crucial to cure TB and prevent drug resistance.
D) Incorrect. Medications for TB should not be shared with family members or others, as they need individualized treatment and evaluation.
Correct Answer is D
Explanation
A) Incorrect. While multiple medications may lead to symptom relief, the primary goal is to prevent drug resistance.
B) Incorrect. The duration of TB treatment is determined by the specific regimen and is not solely related to the number of medications.
C) Incorrect. Multiple medications in TB treatment may target different aspects of TB bacteria, but the primary purpose is to reduce the risk of drug resistance.
D) Correct. Using multiple medications in combination therapy makes it more difficult for TB bacteria to develop resistance to all drugs simultaneously, helping to prevent drug-resistant TB.
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