A nurse is assessing a client’s cranial nerves. What cranial nerve would be assessed when checking a client’s gag reflex?
CN IX
CN V
CN X
CN XII
The Correct Answer is A
Choice A reason: The glossopharyngeal nerve (CN IX) is primarily responsible for the gag reflex. It provides sensory input from the pharynx and posterior third of the tongue, which triggers the gag reflex when stimulated. This nerve plays a crucial role in swallowing and the reflexive action to prevent choking.
Choice B reason: The trigeminal nerve (CN V) is responsible for facial sensation and motor functions such as biting and chewing. It does not play a direct role in the gag reflex. While it is important for other sensory and motor functions, it is not involved in the reflex being assessed here.
Choice C reason: The vagus nerve (CN X) also contributes to the gag reflex by providing motor innervation to the muscles of the pharynx and larynx. However, the primary sensory input for the gag reflex comes from the glossopharyngeal nerve (CN IX). The vagus nerve works in conjunction with CN IX to complete the reflex action.
Choice D reason: The hypoglossal nerve (CN XII) controls the movements of the tongue. It is essential for speech and swallowing but does not have a role in the gag reflex. The hypoglossal nerve’s primary function is motor control of the tongue muscles.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
The correct answer is d) Tighten the abdominal muscles while exhaling.
Choice A Reason:
“Raise both shoulders while breathing deeply” is incorrect. Diaphragmatic breathing focuses on using the diaphragm rather than the shoulders. Raising the shoulders can lead to shallow chest breathing, which is less effective for oxygen exchange.
Choice B Reason:
“Inhale through the mouth” is incorrect. For diaphragmatic breathing, it is recommended to inhale through the nose. This helps filter, warm, and humidify the air before it reaches the lungs.
Choice C Reason:
“Exhale through the nose” is incorrect. While exhaling through the nose is beneficial in some breathing exercises, diaphragmatic breathing typically involves exhaling through pursed lips. This technique helps slow down the exhalation and keeps the airways open longer.
Choice D Reason:
“Tighten the abdominal muscles while exhaling” is correct. Tightening the abdominal muscles helps push the diaphragm up, forcing air out of the lungs more efficiently. This action is a key component of effective diaphragmatic breathing.
Correct Answer is A
Explanation
Choice A Reason:
Washing the area of the puncture thoroughly with soap and water is the first and most immediate action the nurse should take. This step helps to reduce the risk of infection by removing any potential contaminants from the puncture site. It is a crucial initial response to any needlestick injury to minimize the risk of bloodborne pathogen transmission. Proper hand hygiene is essential in preventing infections and ensuring the safety of healthcare workers.
Choice B Reason:
Notifying employee health services is an important step that should follow the initial first aid. Employee health services will provide further evaluation, testing, and follow-up care as needed. They will also guide the nurse on any necessary post-exposure prophylaxis and additional steps to take. However, this is not the first action to take immediately after the injury.
Choice C Reason:
Completing an incident report is a necessary step to document the needlestick injury. This report helps in tracking and preventing future incidents, ensuring that proper protocols are followed, and providing data for workplace safety improvements. While important, this step should be taken after the initial first aid and notification of employee health services.
Choice D Reason:
Reporting the incident to the charge nurse is also an important step in the process. The charge nurse needs to be informed about the incident to ensure that appropriate follow-up actions are taken and to provide support to the affected nurse. However, this step should come after the immediate first aid and notification of employee health services.
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