A patient is taking medications to treat a heart arrhythmia. Which site should be used to assess pulse in this patient?

Correct Answer: D

Rationale: Arrhythmias disrupt peripheral pulse reliability, requiring a central site. Brachial and radial are peripheral, potentially missing beats. Dorsalis pedis is distal, less accurate for arrhythmias. Apical at the heart apex directly counts beats, unaffected by peripheral irregularities, making it correct. Choice D is standard for arrhythmia patients, ensuring accurate rate and rhythm assessment per cardiovascular nursing protocols.

Correct Answer: B

Rationale: Hypothermia is a core temperature below 95°F (35°C), but 96.8°F (36°C) is a practical threshold for early detection . An increase over 96.8°F suggests normothermia or fever. Cyanosis is a symptom, not hypothermia. ‘None' is incorrect. Choice B is correct, aligning with nursing definitions (e.g., CDC) where subnormal temperature signals risk, guiding interventions like warming to prevent complications.

Correct Answer: C

Rationale: Respiratory rate is breaths per minute , typically 12-20 for adults, counting full cycles. Inhaling or exhaling alone isn't standard. Oxygen saturation is a separate metric. Choice C is correct, per nursing definitions, a vital sign tracked to assess breathing adequacy and detect respiratory issues.

Correct Answer: D

Rationale: Assessing temperature changes requires RN judgment, not delegable. NAP can select routes/devices , measure , and note norms under direction. Choice D is correct, per RN scope (e.g., NCSBN) reserving assessment for licensed nurses.

Correct Answer: C

Rationale: Holding metoprolol for BP 92/66 (<100 systolic) requires documentation of reason for accountability. Not telling is optional. BP alone lacks context. Not informing risks oversight. Choice C is correct, per nursing documentation standards.