To test for cranial nerve I, we would instruct our client to:
Assess pupils
Identify a scent/smell
Perform different facial expressions
Read the Snellen chart
The Correct Answer is B
Choice A reason: Assessing pupils tests cranial nerves II (optic) and III (oculomotor), evaluating visual acuity and pupillary response, not cranial nerve I (olfactory), which governs smell. Pupil assessment is irrelevant to olfactory function, making this choice incorrect for testing the sense of smell.
Choice B reason: Cranial nerve I, the olfactory nerve, is responsible for the sense of smell. Instructing the client to identify a scent, such as coffee or vanilla, directly tests this nerve’s function. This is a standard neurological assessment method to evaluate olfactory integrity, making it the correct choice.
Choice C reason: Performing facial expressions tests cranial nerve VII (facial), which controls facial muscle movement. This is unrelated to cranial nerve I, which solely mediates olfaction. Facial expression assessment cannot evaluate smell, rendering this choice inappropriate for the specified cranial nerve test.
Choice D reason: Reading the Snellen chart tests cranial nerve II (optic) for visual acuity, not cranial nerve I, which is dedicated to smell perception. Visual testing does not assess olfactory function, making this choice incorrect for evaluating the olfactory nerve’s sensory capabilities.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Choice A reason: A blood pressure of 90/80 mmHg is below normal, indicating hypotension, especially with a low systolic value. Normal adult blood pressure, per guidelines, is around 120/80 mmHg. Low readings may suggest dehydration or cardiovascular issues, requiring evaluation, making this choice incorrect.
Choice B reason: A reading of 95/60 mmHg is hypotensive, with both systolic and diastolic values below normal ranges. Normal blood pressure is approximately 120/80 mmHg, per American Heart Association guidelines. Such low readings may indicate shock or autonomic dysfunction, rendering this choice incorrect.
Choice C reason: A blood pressure of 180/60 mmHg is abnormal, with elevated systolic pressure indicating hypertension and a low diastolic value suggesting possible aortic regurgitation. Normal blood pressure is 120/80 mmHg. This reading requires urgent assessment, making it an incorrect choice for normal adult values.
Choice D reason: A blood pressure of 120/80 mmHg is considered normal for adults, per current guidelines like those from the American Heart Association. It reflects balanced systolic and diastolic pressures, indicating healthy cardiovascular function without signs of hypertension or hypotension, making it the correct choice.
Correct Answer is A
Explanation
Choice A reason: A blood pressure of 90/60 mmHg is hypotensive, indicating potentially inadequate perfusion to organs, which may result from dehydration, shock, or medication effects. This reading is concerning and requires reporting to the doctor for further evaluation and management to prevent complications like organ failure.
Choice B reason: A blood pressure of 125/68 mmHg is within normal to slightly elevated ranges, not immediately concerning. It does not warrant urgent reporting unless accompanied by symptoms or trends suggesting instability, as it aligns with typical adult values under most clinical guidelines.
Choice C reason: A blood pressure of 144/76 mmHg is elevated but not critical unless persistent or symptomatic. It suggests prehypertension or early hypertension, which may need monitoring but not immediate reporting unless other clinical factors, like symptoms or patient history, indicate urgency.
Choice D reason: A blood pressure of 150/70 mmHg is elevated, indicating possible hypertension, but not an emergency unless accompanied by symptoms like chest pain. It requires monitoring rather than immediate reporting, as it falls short of hypertensive crisis thresholds like 180/120 mmHg.
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