The nurse is administering multiple prescribed vaccines to a toddler. Which strategy should the nurse prioritize to reduce the duration of pain?

The correct answer is choice C. Observe both lower extremities for redness and swelling.

Choice A rationale:

Palpating all peripheral pulse points for volume and strength is important for assessing circulation, but it does not directly evaluate the effectiveness of intermittent pneumatic compression (IPC) devices.IPC devices are primarily used to prevent deep vein thrombosis (DVT) and improve venous return, so monitoring for signs of DVT is more relevant.

Choice B rationale:

Monitoring the amount of drainage from the client’s incision is crucial for assessing wound healing and detecting potential infections, but it is not related to the effectiveness of IPC devices.

Choice C rationale:

Observing both lower extremities for redness and swelling is the most important assessment for evaluating the effectiveness of IPC devices. Redness and swelling can be signs of DVT, which IPC devices are designed to prevent.Therefore, this assessment directly measures whether the devices are functioning as intended.

Choice D rationale:

Evaluating the client’s ability to use an incentive spirometer is important for preventing postoperative pulmonary complications, but it does not assess the effectiveness of IPC devices.

The correct answer is Choice D

Choice A rationale: Splinting with a pillow may reduce discomfort during movement or coughing by stabilizing the incision site, but it does not address acute postoperative pain with sympathetic overdrive. The elevated heart rate, respiratory rate, and blood pressure suggest a stress response mediated by catecholamines. Without analgesia, nociceptive signals continue to activate the hypothalamic-pituitary-adrenal axis. While splinting is supportive, it lacks the pharmacologic efficacy needed to blunt nociceptive transmission at the spinal or supraspinal level.

Choice B rationale: Assessing IV patency is a procedural prerequisite for medication administration but not a therapeutic intervention in itself. It does not directly address the pathophysiology of acute pain or the sympathetic surge evidenced by tachycardia and hypertension. Pain activates ascending pathways via A-delta and C fibers, requiring pharmacologic blockade. IV access assessment is necessary but secondary to the urgent need for analgesia to prevent complications like hypoxia, hyperventilation, or delayed recovery.

Choice C rationale: High Fowler positioning may improve diaphragmatic excursion and reduce pulmonary complications, but it does not mitigate visceral or incisional pain. In fact, increased intra-abdominal pressure from upright posture may exacerbate pain at the surgical site. Pain perception involves central sensitization and peripheral nociceptor activation, which are unaffected by positioning. The client’s pale skin and elevated vitals indicate systemic distress requiring analgesic intervention, not postural adjustment. Thus, this choice lacks direct analgesic benefit.

Choice D rationale: IV analgesics act rapidly to inhibit nociceptive transmission at the spinal cord and brainstem levels. Opioids bind to mu receptors, reducing neurotransmitter release and hyperpolarizing neurons, thereby dampening pain signals. This intervention directly targets the physiologic cause of elevated heart rate, respiratory rate, and blood pressure. Normal heart rate is 60–100 bpm, respiratory rate 12–20 breaths/min, and BP <120/80 mmHg. Prompt analgesia prevents complications like hypoxia, delayed healing, and neuroendocrine stress