The effect of thrombopoietin (TPO) on megakaryocytic cells can be described by all of the following except:
a. Promote endomitosis
b. Inhibit proliferation
c. Increase the number in the bone marrow
d. Advance the rate of maturation
Correct Answer: B
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Sustained traction should not be used for a patient with
A) nerve root impingement B) disc herniation C) spinal cord impingement D) osteoarthritis
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In patients with closed-head injuries, what may happen in the presence of hypercapnia?
a. High CO2 increases the risk of psychotic events. b. High CO2 levels cause cerebral vasodila-tion and improved oxygenation. c. Severe cerebral vasoconstriction results in anoxia and stroke. d. Vasodilation causes increased intracranial pressure and possibly stops blood flow.
A ____ is a sharply pointed instrument for incision into the chest cavity.
A. chest tube B. trocar C. forceps biopsy D. TBLB