A nurse is preparing to test the function of cranial nerve XI. Which action does the nurse take to test this nerve?

Correct Answer: D

Rationale: To assess the function of cranial nerve XI (spinal accessory nerve), the nurse examines the sternomastoid and trapezius muscles for equal size and strength. The correct method involves asking the client to rotate the head forcibly against resistance to the side of the chin and to shrug the shoulders against resistance from the nurse's hands. Choice A, asking the client to stick out the tongue and watching for tremors, is used to assess cranial nerve XII (hypoglossal nerve). Choice C, depressing the client's tongue with a tongue blade and noting pharyngeal function as the client says 'ah', is the technique for examining cranial nerves IX (glossopharyngeal nerve) and X (vagus nerve). Choice B, touching the posterior pharyngeal wall with a tongue blade and noting the gag reflex, is used to evaluate cranial nerves IX (glossopharyngeal nerve) and X (vagus nerve), not cranial nerve XI.

Correct Answer: D

Rationale: The correct answer is cranial nerves IX (glossopharyngeal nerve) and X (vagus nerve). When the nurse touches the posterior pharyngeal wall with a tongue blade and elicits the gag reflex, it indicates normal function of these nerves. Cranial nerves V (trigeminal nerve) and VI (abducens nerve) are not directly responsible for the gag reflex. Cranial nerves XII (hypoglossal nerve) and VIII (vestibulocochlear nerve) are not directly involved in eliciting the gag reflex. Testing cranial nerve I involves smell function, and cranial nerve II is related to eye examinations, making them irrelevant in this scenario.

Correct Answer: D

Rationale: The correct answer is cranial nerve XII (hypoglossal nerve). When testing cranial nerve XII, the healthcare provider inspects the symmetry and movement of the tongue. The tongue should protrude in the midline when the client sticks it out. Cranial nerve IX (glossopharyngeal nerve) and X (vagus nerve) are tested by depressing the tongue with a blade to observe pharyngeal movement and gag reflex. Cranial nerve V (trigeminal nerve) is responsible for testing the muscles of mastication, not tongue protrusion.

Correct Answer: D

Rationale: To best listen to breath sounds, the nurse should have the client sit, leaning slightly forward, with arms resting comfortably across the lap. The client should be instructed to breathe through the mouth a little deeper than usual, but to stop if feeling dizzy. The nurse should hold the flat diaphragm end piece of the stethoscope firmly against the client's chest wall. It is crucial to listen for at least one full respiration in each location on the chest to assess breath sounds accurately. Side-to-side comparison is essential in breath sound assessment. Therefore, options A, B, and C are incorrect as they do not align with the correct procedure for listening to breath sounds.

Correct Answer: C

Rationale: The nurse is documenting an abnormal bronchophony assessment finding. Bronchophony is a technique where the nurse asks the client to repeat a specific word, such as 'ninety-nine,' while listening through the stethoscope. Normally, the voice transmission is soft, muffled, and indistinct. However, if there is a pathologic condition increasing lung density, the nurse will hear the word clearly, indicating an abnormality. Vesicular breath sounds are normal sounds heard over peripheral lung fields and are not related to vocal resonance assessment. Egophony involves the client phonating a long 'ee-ee-ee-ee' sound, not repeating a specific word. Whispered pectoriloquy involves whispering a phrase like 'one-two-three,' not repeating a specific word. In these cases, normal findings are 'eeeeee' for egophony and a muffled, almost inaudible sound for whispered pectoriloquy.