Correct Answer: D

Rationale: In a client with a history of angina experiencing chest pain radiating to the left arm, obtaining a 12-lead ECG is the priority action to assess for myocardial infarction. An ECG helps in diagnosing and evaluating the extent of cardiac ischemia or infarction. Administering nitroglycerin, oxygen, or aspirin can follow once the ECG has been performed to confirm the diagnosis and guide further interventions. Administering nitroglycerin sublingually is often appropriate for angina but should not precede the ECG in this urgent scenario. Oxygen therapy and aspirin administration are important interventions but obtaining the ECG takes precedence in assessing for acute cardiac events.

Correct Answer: D

Rationale: Corrected Rationale: Early decelerations are caused by head compression resulting from the fetal head being compressed during contractions. They are considered benign and do not indicate fetal distress. Choice A, fetal hypoxia, is incorrect because early decelerations are not associated with fetal hypoxia. Choice B, abruptio placentae, is incorrect as it is a condition where the placenta prematurely separates from the uterine wall. Choice C, post maturity, is incorrect as it refers to a fetus that remains in the uterus past the due date.

Correct Answer: B

Rationale: The correct answer is B. Walking regularly is beneficial for clients with osteoporosis as it helps maintain bone density and prevent fractures. Choice A is not the most appropriate because clients with osteoporosis often require more than just calcium supplements. Choice C is incorrect as weight-bearing exercises actually help strengthen bones. Choice D is important, but walking regularly has a more direct impact on bone health in clients with osteoporosis.

Correct Answer: D

Rationale: The correct answer is to monitor the client's respiratory rate. When a client is receiving opioids, the priority assessment is the respiratory rate since opioids can lead to respiratory depression. Monitoring urinary output, blood pressure, and constipation are also important but not the priority in this scenario.

Correct Answer: A

Rationale: The correct answer is to monitor the patient's respiratory rate. This assessment is essential as it ensures that the patient is breathing adequately post-surgery. Maintaining a patent airway and adequate oxygenation are the top priorities in the immediate postoperative period. Monitoring blood pressure, checking the surgical site, or monitoring heart rate are important assessments but are not the priority immediately upon the patient's return from surgery.