A nurse is explaining the process of collecting sputum samples for tuberculosis (TB) testing to a client. Which instruction should the nurse provide to ensure an accurate sample?
"Collect sputum samples immediately after waking up in the morning."
"Rinse your mouth with water before collecting the sputum to ensure cleanliness."
"Avoid deep coughing when producing sputum samples."
"Collect sputum samples in any container you have available."
The Correct Answer is A
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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Related Questions
Correct Answer is C
Explanation
A) Incorrect. TB is primarily transmitted through the inhalation of respiratory droplets from an infected person and is not related to contaminated water or food sources.
B) Incorrect. Having a family history of TB can increase the risk, as there may be genetic factors that affect susceptibility to the disease.
C) Correct. Crowded and poorly ventilated settings increase the risk of TB transmission, as the bacteria can be easily spread in close quarters.
D) Incorrect. Underlying health conditions like HIV, diabetes, and immunosuppression can indeed increase the risk of TB due to compromised immune function.
Correct Answer is A
Explanation
A) Correct. Granulomas are structures formed by the immune system in an attempt to encapsulate and contain TB bacteria, preventing their spread and aiding in their destruction.
B) Incorrect. Granulomas are not clusters of active TB bacteria; they are the body's response to containing the bacteria.
C) Incorrect. TB bacteria interact with the immune system within granulomas, leading to the formation of these structures.
D) Incorrect. Granulomas are not the primary site of TB bacteria replication; instead, they are formed to limit bacterial replication and spread.
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