Correct Answer: D

Rationale: In a client with a history of myocardial infarction, a respiratory rate of 16/min should be reported to the provider. Changes in respiratory rate can indicate cardiac or pulmonary issues that need further evaluation. The other vital signs provided (blood pressure, heart rate, and LDL cholesterol level) are within normal limits and do not directly relate to potential complications following a myocardial infarction.

Correct Answer: B

Rationale: The correct answer is B: Dyspnea. Dyspnea, or difficulty breathing, is a common sign of fluid overload in a client receiving packed RBCs. When fluid accumulates in the lungs due to overload, it can lead to respiratory distress. This finding requires prompt intervention to prevent further complications. Choices A, C, and D are incorrect: A) Low back pain is not typically associated with fluid overload; C) Hypotension refers to low blood pressure and is not a typical finding in fluid overload; D) Thready pulse may indicate poor perfusion but is not a direct indicator of fluid overload.

Correct Answer: A

Rationale: The correct answer is A: Increased creatinine. In chronic kidney disease, the kidneys are unable to filter waste effectively, leading to a buildup of creatinine in the blood. This results in increased creatinine levels in laboratory tests. Choice B, increased hemoglobin, is not typically associated with chronic kidney disease. Choice C, increased bicarbonate, is also not a common finding in chronic kidney disease; in fact, metabolic acidosis with decreased bicarbonate levels is more common. Choice D, increased calcium, is not expected in chronic kidney disease; instead, calcium levels may be low due to impaired kidney function.

Correct Answer: C

Rationale: The correct action the nurse should take when administering vancomycin IV is to assess the IV site for infiltration during administration. Vancomycin is known to cause tissue damage if it infiltrates, making close monitoring crucial. Administering the medication over 30 minutes (Choice A) is a common practice but not the priority in preventing infiltration. Monitoring for a decrease in blood pressure (Choice B) is not directly related to vancomycin administration. Premedicating with an antiemetic (Choice D) is not typically required for vancomycin administration.

Correct Answer: A

Rationale: The correct answer is A: Hgb 10 g/dL. A hemoglobin level of 10 g/dL is below the normal range for a pregnant client, indicating possible anemia, which is crucial to report during pregnancy to prevent complications for both the mother and the baby. Platelets, WBC count, and BUN levels within the listed values are generally within normal ranges for a pregnant individual at 28 weeks of gestation. Platelets play a role in blood clotting, WBC count helps in fighting infections, and BUN measures kidney function, all of which are typically expected to be within normal limits during pregnancy.