An instructor asks a nursing student to test a newborn’s rooting reflex. Which technique would be correct?
Offering the little finger to the infant’s mouth.
Stroking the infant’s cheek near the mouth.
Startling the neonate by jarring the crib and making a loud noise.
Stroking the lateral edge of the neonate’s foot.
The Correct Answer is B
Choice A reason: Offering a finger may elicit sucking, not rooting, which involves head-turning toward a stimulus. Stroking the cheek triggers the rooting reflex, so this is incorrect for testing the specific reflex.
Choice B reason: Stroking the infant’s cheek near the mouth elicits the rooting reflex, causing the newborn to turn toward the stimulus, seeking to nurse. This is the correct technique for testing this reflex.
Choice C reason: Jarring the crib tests the Moro reflex, not rooting, which is unrelated to startle responses. Cheek stroking is specific to rooting, so this incorrect for the reflex being assessed.
Choice D reason: Stroking the foot edge tests the Babinski reflex, not rooting, which involves oral seeking. The cheek is the correct area to stimulate, so this is incorrect for the rooting reflex.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A reason: The cerebellum coordinates motor activity and balance, not speech or emotions. Speech is primarily managed by the cerebral cortex (e.g., Broca’s area), and emotions involve the limbic system, making this statement incorrect.
Choice B reason: The hypothalamus regulates body temperature, sleep, hunger, and hormonal functions via its connections to the autonomic nervous system and pituitary gland. This makes it critical for homeostasis, and the statement is accurate, reflecting its physiological roles.
Choice C reason: Motor pathways from the cortex and brainstem do not primarily synapse in the thalamus. The thalamus relays sensory and some motor signals, but motor pathways mainly synapse in the spinal cord or brainstem, making this statement incorrect.
Choice D reason: The basal ganglia modulate voluntary movements but do not directly control them. The primary motor cortex initiates voluntary movements, while the basal ganglia refine them, so this statement is inaccurate due to its oversimplification.
Correct Answer is D
Explanation
Choice A reason: There is no standard “grade 5” in tonsil size grading. The scale typically ranges from 0 to 4+, with 4+ indicating tonsils touching or overlapping, making this an incorrect and non-standard documentation term.
Choice B reason: Grade 3 tonsils are enlarged, occupying about 75% of the pharyngeal space, but not touching. The described tonsils are touching, which corresponds to a higher grade, making grade 3 incorrect for this finding.
Choice C reason: Grade 2+ tonsils are moderately enlarged, taking up about 50% of the pharyngeal space. The tonsils touching indicate a more severe enlargement, aligning with a higher grade, making this an incorrect documentation choice.
Choice D reason: Grade 4+ tonsils are severely enlarged, touching or overlapping in the midline, as described. This matches the standard tonsil grading scale, where 4+ indicates maximal swelling, making this the correct documentation.
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