The practical nurse (PN) is caring for a client with coronary artery disease who is admitted with intermittent chest pain. The admission laboratory results indicate elevations in troponin I and creatine phosphokinase myoglobulin isoenzyme (CK-MB) levels. What should the PN consider the most significant risk for this client on the second day of admission?

A. The client is at risk for recurrent long-term angina pain and subsequent myocardial infarction (MI): While the client has coronary artery disease and may experience angina, the immediate concern after elevated troponin I and CK-MB is acute myocardial injury rather than long-term recurrence. B. The lab results indicate myocardial damage, and the client is at risk for cardiac dysrhythmias: Elevated troponin I and CK-MB confirm myocardial injury. Damaged cardiac tissue can disrupt electrical conduction, placing the client at high risk for potentially life-threatening dysrhythmias. C. The client is at risk for pulmonary embolism, and lifestyle modifications need to be implemented: Pulmonary embolism is not directly related to elevated cardiac enzymes in coronary artery disease. While mobility and lifestyle are important, the immediate risk is cardiac in nature. D. The lab results indicate risk factors for transient ischemic attack (TIA), and neurological vital signs should be monitored: Elevated cardiac enzymes indicate myocardial damage rather than cerebrovascular risk. Monitoring for TIA is not the priority in this context.