If you were designing a clinical trial to test the effects of vitamin D on bone strength, which of the following would be an appropriate placebo?
A) the recommended daily intake of vitamin D
B) a sugar pill that contains no vitamins or minerals
C) half the amount of vitamin D given to the experimental group
D) a multi-vitamin
Ans: B) a sugar pill that contains no vitamins or minerals
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Which of the following are common signs or symptoms of pellagra?
A. Blurred vision and dry eyes B. Constipation and mild fever C. Mental confusion and scaly skin sores D. Nasal congestion and trouble breathing
What is a carbohydrate source used in many standard formulas??
A) ?aldose B) ?maltodextrin C) ?amylopectin D) ?cellulose
What is DNA shaped like?
A) A pyramid B) An X C) A square D) A ladder
Which describes a non-invasive test used in patients with symptoms of PAD that measures the blood pressure in the upper and lower extremities at rest and after exercise?
a. magnetic resonance angiography b. radionucleotide imaging c. positron emission tomography d. ankle-brachial index e. CT angiography