A condition in which cold exposure causes vasospasm of the digital arteries is known as:
A. hunting response.
B. Raynaud's phenomenon.
C. ischemia.
D. tapotement.
Answer: B
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After interaction with thymic stromal cells, _____, a glycoprotein not expressed by the uncommitted progenitor cell is activated in developing thymocytes. (Select all that apply.)
a. CD2 b. CD34 c. CD5 d. CD127 (IL-7 receptor) e. CD44.
The Harvard Alumni Study showed that an increase in physical activity
a. increases the risk of many accident deaths. b. increases the risk of cardiovascular deaths. c. decreases the risk of many accident deaths. d. decreases the risk of cardiovascular deaths.
What should be done PRIOR to administration of medications by NG tube?
a. Prepare a large syringe in case additional pressure is required to force the medication through the tube. b. Check for proper tube placement by auscultation with a stethoscope and by aspiration to check pH of fluids. c. Clamp the tube for 30 minutes. d. Flush the tube with water to make sure it is patent.
The nitroblue-tetrazolium test measures
a. B-cell function b. T-cell function c. complement function d. phagocytic cell function