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: Checking the ophthalmoscope’s light source is unnecessary unless the device malfunctions. The red glow is a normal finding, reflecting light off the retina’s blood vessels, not indicating equipment issues, making this an inappropriate action.
Choice B reason: The red glow, or red reflex, is a normal finding during ophthalmoscopy, caused by light reflecting off the vascular retina. It indicates a clear optical pathway, ruling out opacities like cataracts, making this the correct action to document as normal.
Choice C reason: An opacity in the lens or cornea (e.g., cataract or corneal scar) would block the red reflex, causing a dark or absent glow. The presence of a red glow indicates a clear media, making this suspicion incorrect.
Choice D reason: Stopping the exam and referring the patient is unwarranted, as the red glow is a normal finding. Referral is only needed for abnormal findings like absent reflex or opacities, making this an unnecessary and incorrect action.
Correct Answer is D
Explanation
Choice A reason: Convergence and pupil constriction are accommodation reflexes, not corneal light reflex, which tests alignment. Light reflection symmetry indicates eye alignment, so this incorrect for the reflex’s purpose.
Choice B reason: Pupil constriction is a pupillary reflex, not corneal light reflex. The corneal reflex involves light reflection on corneas, assessing alignment, not pupil response, so this is incorrect.
Choice C reason: Macular focus is related to visual acuity, not corneal reflex, light reflex, which checks eye alignment via light reflection. Symmetric reflection is key, so this incorrect for the reflex’s indication.
Choice D reason: A normal corneal reflex shows light reflecting in the same spot on both corneas, indicating proper eye alignment. This is the definition of the reflex, making it the correct choice for eye assessment.
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