During an assessment of the CNs, the nurse finds the following: asymmetry when the patient smiles or frowns, uneven lifting of the eyebrows, sagging of the lower eyelids, and escape of air when the nurse presses against the right puffed cheek. This would indicate dysfunction of which of these CNs?
Motor component of CN IV
Motor component of CN VI
Motor and sensory components of CNX
Motor component of CN VII
The Correct Answer is D
A. The trochlear nerve controls the superior oblique muscle of the eye and is not related to facial movements.
B. The abducens nerve controls the lateral rectus muscle of the eye, responsible for eye movement, not facial muscles.
C. The vagus nerve affects the soft palate, pharynx, and larynx, but does not contribute to facial expression.
D. Asymmetry in facial movements, like smiling, frowning, and puffing the cheeks, suggests dysfunction of the facial nerve (CN VII).
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. Hormonal changes can occur, but they typically do not cause significant vasodilation or hypotension in the elderly.
B. Atrophy of the muscles causing venous insufficiency. While venous insufficiency can occur in aging, muscle atrophy is not the primary factor in this issue.
C. Peripheral blood vessels become more rigid producing a rise in systolic blood pressure. This is a common and expected finding in the elderly due to arteriosclerosis, leading to increased systolic blood pressure.
D. The inferior vena cava does not typically narrow with age, and varicosities are more likely due to vein elasticity changes, not narrowing.
Correct Answer is D
Explanation
A. A score of 24 would indicate a fully alert and responsive patient. The Glasgow Coma Scale ranges from 3 (deep coma) to 15 (fully awake).
B. A score of 12 indicates a moderate level of consciousness, not a coma.
C. A score of 15 indicates that the patient is fully conscious and alert.
D. A score of 6 indicates a coma and represents a very low level of consciousness, with minimal responses to stimuli.
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