The nurse is caring for a client. Client reports sudden onset of dyspnea and chest discomfort. Client transferred back to bed. Client is awake and orientated x4. Client states, "I just feel like something is really wrong." Client is tachypneic and appears in distress. Crackles heard in bilateral lungs. S3 and S4 heart sounds noted. Bilateral pedal pulses are +1. Surgical site is dressed, dry, and intact. Temperature 38.9° C (102° F) Heart rate 112/min Respiratory rate 34/min Blood pressure 144/72 mm Hg Oxygen saturation 92% on 2 L via nasal cannula

Rationale for correct choices • Sudden onset of dyspnea and chest discomfort: These symptoms may indicate acute cardiopulmonary compromise such as pulmonary embolism, acute heart failure, or infection. Sudden dyspnea in a post-op orthopedic client requires immediate assessment and intervention to prevent deterioration. • Tachypnea and appearance of distress: Rapid, labored breathing indicates the client is struggling to maintain adequate oxygenation and may signal hypoxemia or respiratory failure. Immediate follow-up is necessary to prevent further compromise. • Crackles heard in bilateral lungs: Bilateral crackles suggest fluid accumulation in the alveoli, possibly from pulmonary edema or early pneumonia. This finding correlates with respiratory distress and requires prompt evaluation. • S3 and S4 heart sounds noted: Extra heart sounds can indicate left ventricular dysfunction or volume overload, suggesting acute heart failure. Timely assessment is critical to prevent worsening cardiac output and pulmonary congestion. • Temperature 38.9° C (102° F): Fever indicates possible infection, which in a post-operative patient could suggest pneumonia, surgical site infection, or sepsis. Early recognition and treatment are essential. • Heart rate 112/min: Tachycardia may be a compensatory response to hypoxia, fever, or fluid overload. Persistent elevation increases cardiac workload and risk of decompensation. • Respiratory rate 34/min: A significantly elevated respiratory rate confirms respiratory distress and inadequate oxygenation, warranting immediate intervention such as supplemental oxygen adjustment or further diagnostics. Rationale for incorrect choices • Client is awake and oriented x4: The client’s alertness and orientation indicate that cerebral perfusion and cognitive function are intact at this time. While this is important to note, it does not indicate acute cardiopulmonary compromise or a life-threatening event, so it does not require immediate follow-up. • Surgical site is dressed, dry, and intact: The dressing being clean, dry, and intact indicates there is currently no active bleeding or wound complication. While ongoing monitoring is important post-operatively, this finding does not necessitate urgent intervention compared with the client’s acute respiratory and cardiovascular symptoms.