The nurse works with several clients who routinely take nutritional supplements. The nurse is aware that which of the following statements about vitamins is true?
A) Most Americans do not consume adequate amounts of thiamin, riboflavin, and niacin.
B) Most Americans do not consume adequate amounts of vitamin C.
C) Taking large doses of vitamin A is potentially harmful.
D) Because of the potential health benefits, beta-carotene supplements are routinely recommended.
C
Feedback:
Extremely high doses of vitamin A (at least 30,000 g/day) consumed over months or years may cause central nervous system changes, bone and skin changes, and liver abnormalities that range from reversible to fatal. In high doses during pregnancy, vitamin A is also teratogenic, so supplementation is not recommended during the first trimester unless there is specific evidence of vitamin A deficiency.
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A client with a BMI of 18 would be considered to be
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Which medication does the nurse plan to administer to a client before chemotherapy to decrease the incidence of nausea?
A. Morphine B. Ondansetron (Zofran) C. Naloxone (Narcan) D. Diazepam (Valium)
The most accurate time for chromosomal screening for abnormalities including Trisomy 21 is:
a. 9–13 weeks. b. 11–13 weeks. c. 10–13 weeks. d. 10–12 weeks.