At 8 AM, medications are prescribed for assigned clients. Which medication should the nurse administer first?
1. Acetylsalicylic acid for a client with a history of coronary artery disease and ischemic stroke
2. Metformin for a client with serum glucose of 285 mg/dL (15.8 mmol/L) who is scheduled for a CT scan with contrast
3. Morphine sulfate for a client with terminal lung cancer who has chronic bone pain
4. Pyridostigmine for a client with myasthenia gravis exacerbation who reports difficulty swallowing