NAVLE Practice Test 11

10 free NAVLE practice questions in the real exam format, covering the official content areas, with an explanation for every answer.

NAVLE Practice Test 11Tutor mode

Question 1 of 10

Clinical Practice

In November, a 2-year-old intact male alpaca on a pasture bordering woodland used by white-tailed deer develops acute pelvic limb ataxia and weakness that are worse on the right. Deworming has been irregular. Temperature is 100.6°F (38.1°C), heart rate 72 beats/min, and respiratory rate 24 breaths/min. He is alert, eating, and has normal cranial nerve function. He can stand only with assistance. Cerebrospinal fluid collected at the lumbosacral site is analyzed; results are shown. Which of the following is the most likely diagnosis?

Cerebrospinal fluid analysis
Analyte	Result	Reference range	Result (SI)	Reference range (SI)
Total nucleated cells	85 /µL	<3 /µL	85 ×10⁶/L	<3 ×10⁶/L
Eosinophils	38 % of nucleated cells	<1 % of nucleated cells	0.38 fraction	<0.01 fraction
Total protein	95 mg/dL	<70 mg/dL	0.95 g/L	<0.70 g/L