ATI LPN
Medical Surgical Neurology Questions
Question 1 of 5
Which stroke risk factor for a 48-yr-old male patient in the clinic is most important for the nurse to address?
Correct Answer: C
Rationale: Hypertension (170/94) is a major modifiable stroke risk. A/D contribute, B is neutral or protective. [Level: Analysis]
Question 2 of 5
The fatty substance that insulates and speeds up the conduction of nerve impulses along the axon is called:
Correct Answer: B
Rationale: Myelin insulates axons and speeds conduction via saltatory conduction. Others are unrelated. [Level: Knowledge]
Question 3 of 5
Bipolar neurons are commonly found in the:
Correct Answer: B
Rationale: Bipolar neurons, with one dendrite and one axon, are sensory and found in the retina. [Level: Knowledge]
Question 4 of 5
The threshold potential is the membrane potential at which:
Correct Answer: A
Rationale: Threshold (~-55 mV) triggers Na+ channel opening, initiating an action potential. [Level: Knowledge]
Question 5 of 5
The reuptake of neurotransmitters back into the presynaptic neuron is facilitated by:
Correct Answer: D
Rationale: Reuptake transporters recycle neurotransmitters, terminating their action. [Level: Knowledge]