Nokea
Pernicious anemia is treated with:
- A. Folic acid supplements
- B. Thiamine supplements
- C. Vitamin B12
- D. Iron
Correct Answer: C
Rationale: Pernicious anemia requires B12 due to absorption defect; folate masks it without fixing neuropathy.
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What aspect of pharmacology does a nurse study? (Select one that does not apply.)
- A. Adverse and anticipated drug effects
- B. Molecular pharmacology
- C. Impact of drugs on the body
- D. The bodys response to a drug
Correct Answer: B
Rationale: Nurses study pharmacology from a pharmacotherapeutic level, which includes the effect of drugs on the body, the bodys response to drugs, and both expected and unexpected drug effects. Chemical and molecular pharmacology (Options A and B) are not included in nursing pharmacology courses. Adverse and anticipated drug effects are part of pharmacotherapeutics, making C, D, and E correct.
The mean weight of 500 college students is 70 kg and the standard deviation is 3 kg. Assuming that the weight is normally distributed, determine how many students weigh more than 90 kg.
- B. 5
- C. 10
- D. 15
Correct Answer: A
Rationale: Z-score: (90-70)/3 = 6.67. P(Z > 6.67) is effectively 0 since it's far beyond the normal distribution's tail (P(Z < 6.67) ≈ 1), so 0 students, consistent with the document's calculation.
A patient with a new onset of systolic ejection murmur should be assessed for which nutritional deficiency?
- A. Vitamin B12
- B. Vitamin C
- C. Folate
- D. Niacin
Correct Answer: A
Rationale: Vitamin B12 deficiency can lead to anemia, potentially causing a systolic murmur.
Release of the mineralcorticoids is stimulated with:
- A. Low concentration of \mathrm{Na}+ in the blood
- B. Hypokalemia
- C. Low concentration of angiotensin II in the blood
- D. Low concentration of \mathrm{Mg} 2+ in the blood
Correct Answer: A
Rationale: Low blood sodium stimulates aldosterone release via the renin-angiotensin system.
Brands of pancreatic enzyme replacement drugs are:
- A. Bioequivalent
- B. About the same in cost per unit of lipase across brands
- C. Able to be interchanged between generic and brand-name products to reduce cost
- D. None of the above
Correct Answer: D
Rationale: Pancreatic enzymes vary in potency and aren't bioequivalent or interchangeable ; cost differs .