What symptom might be caused by ischemia in the brainstem region?
A. Dizziness
B. Visual disorders
C. Weakness
D. All of the above
ANS: D
Rationale: Typically, ischemia in the brainstem region produces an abrupt onset of neurologic symptoms, including dizziness, visual disorders, weakness, incoordination, and somatosensory disorders. Vertebrobasilar artery insufficiency produces transient symptoms of brainstem region ischemia when the neck is extended and rotated
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a. True b. False
The parathyroid glands secrete a hormone that regulates the level of what substance in the blood?
A) calcium B) insulin C) melanin D) melatonin
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Answer the following statement true (T) or false (F)
Approximately 80 percent of the population in the United States does NOT smoke.
Answer the following statement true (T) or false (F)