In assessing a client at 34 weeks gestation, the nurse notes that she has a slightly elevated total T4 with a slightly enlarged thyroid, a hematocrit of 28% (0.28 volume fraction), a heart rate of 92 beats per minute, and a systolic murmur. Which finding requires follow-up?

Reference Range:

Hematocrit [37% to 47% (0.37 to 0.47 volume fraction)]

Emphysema is a chronic obstructive pulmonary disease (COPD) characterized by the destruction of lung tissue and loss of elasticity in the alveoli. This leads to poor gas exchange, specifically the reduced ability of oxygen to enter the bloodstream and carbon dioxide to be eliminated from the body. Impaired gas exchange can result in hypoxemia and hypercapnia, leading to symptoms such as shortness of breath, fatigue, and decreased exercise tolerance.

While self-care deficit, activity intolerance, and ineffective airway clearance are all potential complications associated with emphysema, impaired gas exchange is the priority due to its direct impact on the client's oxygenation and overall respiratory function.

Addressing impaired gas exchange and optimizing oxygenation is essential to support the client's respiratory health and prevent further complications. Management strategies for impaired gas exchange may include administering supplemental oxygen, implementing respiratory treatments to improve lung function, and providing education on breathing techniques and energy conservation.

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