A nurse is preparing to administer a measles, mumps, rubella (MMR) immunization to a child. Which is a contraindication for this vaccine?

Correct Answer: A

Rationale: The correct answer is A: Recent blood transfusion. A recent blood transfusion can interfere with the effectiveness of the MMR vaccine, making it a contraindication. Choice B, allergy to penicillin, is not a contraindication for the MMR vaccine. Choice C, minor acute illness, is not a contraindication unless the child has a moderate to severe illness. Choice D, low-grade fever, is not a contraindication as long as the child does not have a moderate to severe febrile illness.

Correct Answer: C

Rationale: The correct answer is C: 'Rise slowly when sitting up.' Doxazosin can cause orthostatic hypotension, a sudden drop in blood pressure when standing up, leading to dizziness or fainting. Instructing the client to rise slowly helps prevent this adverse effect. Choices A, B, and D are incorrect. A decrease in caloric intake to reduce weight gain, an increase in dietary fiber to prevent constipation, and taking the medication each morning are not specific instructions related to managing the side effects of doxazosin.

Correct Answer: B

Rationale: Diminished deep tendon reflexes are a sign of magnesium toxicity. Magnesium sulfate can depress the central nervous system, leading to decreased reflexes. Respiratory rate of 12/min, urine output 40 mL/hr, and systolic blood pressure of 140 mm Hg are not specific findings of magnesium toxicity. Respiratory depression, oliguria, and hypotension are more concerning signs that require immediate attention.

Correct Answer: B

Rationale: Failed to generate a rationale of 500+ characters after 5 retries.

Correct Answer: D

Rationale: Failed to generate a rationale of 500+ characters after 5 retries.