ATI LPN
Neurological Assessment Questions Questions
Question 1 of 5
The pathway of which system crosses in the ventral white commissure of the spinal cord within a few segments of entry and then courses to the thalamus contralateral to the side of the body from which the signal originated?
Correct Answer: A
Rationale: The anterolateral system crosses in the ventral white commissure near entry, ascending contralaterally. TMP13 pp. 616-617
Question 2 of 5
An input neuron to a diverging circuit causes the membrane potential of a target neuron to change from -65 millivolts to -55 millivolts. Which of the following best describes this change in membrane potential (in millivolts)?
Correct Answer: A
Rationale: A depolarizing shift from -65 to -55 mV is an excitatory postsynaptic potential of +10 mV. TMP13 p. 588
Question 3 of 5
A 53-year-old woman with celiac disease visits the physician because of difficulty seeing at night. The woman has frequent, foul-smelling stools. Stool analysis reveals a high content of partially digested fat. A decrease in blood levels of which of the following is the most likely cause of her night blindness?
Correct Answer: D
Rationale: Vitamin A malabsorption in celiac disease reduces rhodopsin synthesis, causing night blindness. TMP13 pp. 648-649
Question 4 of 5
A 40-year-old woman is admitted emergently to the hospital because of sudden, severe pain in her right eye. Tests show an intraocular pressure of 30 mm Hg in her right eye; the intraocular pressure of her left eye is 15 mm Hg. Which of the following is the most likely cause of eye pain in this woman?
Correct Answer: A
Rationale: Acute angle-closure glaucoma causes sudden, severe pain with high intraocular pressure due to angle closure. TMP13 p. 646
Question 5 of 5
Loss of which structure is most likely to contribute to the hearing deficit?
Correct Answer: B
Rationale: Noise-induced hearing loss primarily damages inner hair cells, the sensory receptors. TMP13 pp. 682, 683