A client asks a nurse why tuberculosis (TB) can remain latent in the body for many years without causing symptoms. What is the nurse's best explanation?
"TB bacteria are dormant and do not replicate in the body during latent infection."
"The immune system immediately eliminates TB bacteria during the latent phase."
"Latent TB infection occurs in the lungs, where it does not cause symptoms."
"TB bacteria actively multiply in the body but at a very slow rate during latency."
The Correct Answer is A
A) Correct. During latent TB infection, TB bacteria are in a dormant state and do not actively replicate or cause symptoms. They can become active and multiply if the immune system weakens.
B) Incorrect. While the immune system can control TB bacteria during latency, it does not immediately eliminate them.
C) Incorrect. Latent TB infection can occur in various parts of the body, not just the lungs, and it typically does not cause symptoms.
D) Incorrect. TB bacteria in latent infection are in a dormant state and do not actively multiply, although they remain viable.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A) Incorrect. Chest X-rays do not confirm the presence of TB bacteria but can indicate lung abnormalities associated with TB disease.
B) Correct. Chest X-rays are valuable in assessing the extent of lung involvement, the presence of cavities, and other abnormalities related to TB. This information helps guide treatment decisions.
C) Incorrect. Chest X-rays are not primarily used to detect TB infection in the blood; they focus on lung and chest abnormalities.
D) Incorrect. Chest X-rays are routinely used in the diagnosis and management of TB, especially for assessing lung involvement.
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.
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