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. While it is essential to minimize close contact, isolation from family members is not typically necessary. Effective treatment and infection control measures can reduce the risk of transmission.
B) Incorrect. Wearing a mask at all times at home may not be necessary, but it is important to follow respiratory hygiene practices, especially when close to others.
C) Correct. Good hand hygiene and proper respiratory etiquette, such as covering the mouth when coughing, can help reduce the risk of TB transmission within the household.
D) Incorrect. TB can be transmitted in close household settings, so infection control measures are important to prevent transmission to family members.
Correct Answer is B
Explanation
A) Incorrect. TB is not primarily transmitted through contaminated food and water; it is mainly an airborne disease.
B) Correct. TB is primarily an airborne disease, and the bacteria can be transmitted through respiratory droplets when an infected person coughs, sneezes, or talks.
C) Incorrect. TB is not primarily transmitted through sexual contact.
D) Incorrect. TB is not primarily transmitted through contact with skin lesions. It primarily affects the lungs and is transmitted through the respiratory route.
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