ATI LPN
Medical Surgical Neurology Questions
Question 1 of 5
Which cell type(s) have action potentials in the retina of the human eye?
Correct Answer: D
Rationale: Only ganglion cells in the retina generate action potentials. TMP13 pp. 655, 656, 658
Question 2 of 5
A 29-year-old student with 20/20 vision looks at a beautiful scene. The axons of ganglion cells transmitting visual signals in the form of action potentials to the primary visual cortex are most likely to synapse in which structure?
Correct Answer: A
Rationale: Ganglion cell axons synapse in the lateral geniculate nucleus before reaching the visual cortex. TMP13 pp. 661-662
Question 3 of 5
The first central synapse for neurons transmitting the sweet taste sensation is in which structure?
Correct Answer: B
Rationale: Taste fibers synapse in the nucleus of the solitary tract. TMP13 pp. 687-688
Question 4 of 5
A patient with carotid atherosclerosis asks the nurse to describe a carotid endarterectomy.Which response by the nurse is accurate?
Correct Answer: A
Rationale: In a carotid endarterectomy, the carotid artery is incised, and the plaque is removed. The response beginning, 'The diseased portion of the artery in the brain is replaced' describes an arterial graft procedure. The answer beginning, 'A catheter with a deflated balloon is positioned at the narrow area' describes an angioplasty. The final response beginning, 'A wire is threaded through the artery' describes the mechanical embolus removal in cerebral ischemia (MERCI) procedure.
Question 5 of 5
The nurse is caring for a patient who has been experiencing stroke symptoms for 60 minutes. Which action can the nurse delegate to a licensed practical/vocational nurse (LPN/LVN)?
Correct Answer: C
Rationale: Administration of subcutaneous medications is included in LPN/LVN education and scope of practice. The other actions require more education and scope of practice and should be done by the registered nurse (RN).