The nurse is teaching a group of community members about fire safety.
A participant asks, "What should I do if I get hot grease burns on my hand?" How should the nurse best respond?

Postoperative care focuses on mitigating risks associated with anesthesia and immobility. This question addresses the prevention of atelectasis and pneumonia by applying knowledge of respiratory mechanics, alveolar expansion, and nursing interventions designed to optimize lung volumes and gas exchange.

Choice A rationale

Incentive spirometry promotes deep breathing and lung expansion, preventing alveolar collapse or atelectasis common after surgery. It encourages sustained maximal inspiration, which increases surfactant production and improves oxygenation, maintaining a normal oxygen saturation of 95 to 100 percent.

Choice B rationale

Range-of-motion exercises primarily prevent musculoskeletal stiffness and deep vein thrombosis by promoting venous return. While important for overall recovery, they do not directly expand lung tissue or prevent pulmonary secretions from accumulating in the bronchioles.

Choice C rationale

Expectorants assist in thinning mucus but do not address the primary postoperative risk of hypoventilation or lung collapse. Preventive care prioritizes mechanical expansion of the lungs over pharmacological management of secretions unless a cough is present.

Choice D rationale

Suction equipment is a reactive measure used when secretions already obstruct the airway. Preventive care focuses on proactive lung expansion techniques rather than the equipment needed for emergency or symptomatic management of existing pulmonary distress.

Identifying life-threatening complications in immunocompromised patients is critical. Knowledge of the systemic inflammatory response syndrome and hemodynamic instability in neutropenic patients must be applied to differentiate between oncological emergencies like sepsis, tumor lysis syndrome, and superior vena cava obstruction.

Choice A rationale

Sepsis in neutropenic patients often leads to septic shock, characterized by hypotension (80/40 mm Hg) and tachycardia (142/min). The high fever and rapid breathing indicate a systemic response to infection and inadequate tissue perfusion.

Choice B rationale

Tumor lysis syndrome results from rapid cell destruction, causing hyperkalemia, hyperuricemia, and renal failure. While it is an oncological emergency, it does not typically present with the acute hemodynamic collapse and profound hypotension seen in this scenario.

Choice C rationale

While chemotherapy induces fatigue, it does not cause severe hypotension, high fever, or extreme tachycardia. These findings represent a critical physiological crisis rather than the expected side effects of exhaustion or malaise during oncological treatment.

Choice D rationale

Superior vena cava syndrome involves obstruction of blood flow from the upper body, causing facial edema, neck vein distention, and dyspnea. It does not primarily present with acute fever, sepsis symptoms, or profound hypotension.