ATI LPN
Medical-Surgical Nursing Neurological System Questions
Question 1 of 5
A 60-year-old woman visits the ophthalmologist because of eye pain. Tests show that her right eye has an intraocular pressure of 22 mm Hg and her left eye has an intraocular pressure of 25 mm Hg. Which of the following is the most likely cause of eye pain in this woman?
Correct Answer: C
Rationale: Open-angle glaucoma, with increased trabecular meshwork resistance, raises intraocular pressure, causing pain. TMP13 p. 646
Question 2 of 5
After olfactory receptor cells bind odor molecules, a sequence of intracellular events occurs that culminates in the entrance of specific ions that depolarize the olfactory receptor cell. Which ions are involved?
Correct Answer: D
Rationale: Sodium ions enter, depolarizing olfactory receptors due to their high sensitivity. TMP13 p. 690
Question 3 of 5
Which muscle is contracted as part of the pupillary light reflex?
Correct Answer: C
Rationale: The pupillary sphincter contracts to constrict the pupil in the light reflex. TMP13 p. 672
Question 4 of 5
Which structure functions to ensure that each of the three sets of extraocular muscles is reciprocally innervated so that one muscle of the pair relaxes while the other contracts?
Correct Answer: B
Rationale: The medial longitudinal fasciculus coordinates reciprocal extraocular muscle innervation. TMP13 p. 666
Question 5 of 5
A patient arrives in the emergency department with hemiparesis and dysarthria that started 2 hours previously, and health records show a history of several transient ischemic attacks (TIAs). The nurse anticipates preparing the patient for
Correct Answer: D
Rationale: The patient's history and clinical manifestations suggest an acute ischemic stroke, and a patient who is seen within 4.5 hours of stroke onset is likely to receive tPA (after screening with a CT scan). Heparin administration in the emergency phase is not indicated. Emergent carotid transluminal angioplasty or endarterectomy is not indicated for the patient who is having an acute ischemic stroke.