A positive skin-prick test result correctly identifies an allergen _____ of the time
a. 50% to 60% b. 60% to 70%
c. 70% to 80% d. 80% to 90%
a
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Which vitamin plays a key role in the formation of myelin, which is a lipoprotein that wraps around nerve fibers, acting like insulating material?
A) Vitamin A B) Vitamin C C) Vitamin B-12 D) Folate
The popularity of CAM can be explained by all of the following except:
a. consumers' interest in self-help measures. b. the noninvasive nature of CAM therapies. c. the tendency of CAM practitioners to spend more time with patients. d. growing evidence of the effectiveness of CAM.
How does the method of cooking affect thiamin stability?
a. Microwaving the food conserves much of the thiamin. b. Prolonged heating of the food has little, if any, effect on the thiamin. c. Boiling the food tends to conserve thiamin by forming a stable, hydrated complex. d. Steaming the food can lead to substantial thiamin loss due to the high heat needed to form the steam. e. Blanching the food before cooking it will preserve thiamin content. ANS: A
A breastfeeding mother asks you if alcohol can be eliminated from her breast milk by pumping immediately after drinking a few glasses of wine. What would you tell her?
a. Yes; in fact, discarding your breast milk is a good thing to do if you would like to drink while breastfeeding. b. Yes; pumping will help, but you need to pump for the next 24 hours and discard any milk that you collect. c. No; your breast milk will still contain alcohol; you will need to wait 1 hour per alcoholic beverage and then pump the milk and discard it to be safe. d. No; the alcohol will still be in the breast milk and will clear from the milk as soon as it clears from the blood stream: roughly 2 to 3 hours per drink for a 120-pound woman. e. None of the above will help eliminate alcohol from breast milk.