Which of the following statements regarding central cord syndrome is correct?
A) The patient typically presents with greater loss of function in the upper extremities than in the lower extremities.
B) Central cord syndrome is almost always associated with a vertebral fracture and has an overall poor prognosis.
C) Patients with cervical spondylosis or stenosis are at a lower risk for central cord syndrome following an injury.
D) Central cord syndrome typically causes complete paralysis of the lower extremities and decreased proprioception.
Answer: A) The patient typically presents with greater loss of function in the upper extremities than in the lower extremities.
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On a long transcontinental flight, a middle-aged man gets up and exercises in the aisle, moving his hands, feet, arms, and legs as much as he can. He does this every two hours. The flight attendant asks him to sit down, but he explains that he is trying to prevent a very dangerous medical condition. He is talking about the condition called
A. leukemia. B. deep vein thrombosis. C. thrombocytopenia. D. aplastic anemia.
Answer the following statements true (T) or false (F)
1. Prolonged respiratory depression can lead to respiratory acidosis. 2. Carbonic acid excess can lead to respiratory alkalosis. 3. Overventilation of patients on ventilators can lead to respiratory alkalosis. 4. A possible risk of severe, prolonged vomiting is metabolic acidosis. 5. A treatment for the pH imbalance caused by excessive vomiting is intravenous administration of normal saline.
The cornea is relatively easy to transplant because
A. it has an extensive blood supply. B. its high immunological activity prevents infection. C. it is not attached to the eye. D. its proteoglycan content is high. E. it is easy to access and is avascular.
The depression on the concave side of a kidney (where vessels exit) is known as the
A. urethra. B. renal disc. C. trigone. D. hilum. E. fascia.