ATI Pharmacology CMS 2026 Complete Study Guide: Comprehensive Review, Targeted Practice Questions with Detailed Rationales & Proven Strategies for Mastery A client has a new prescription for spironolactone (Aldactone). Which of the following laboratory values should the nurse recognize as a reason to withhold the morning dose of the medication and notify the provider? a. Serum sodium 138 mEq/L b. Serum potassium 5.2 mEq/L c. Serum creatinine 1.2 mEq/L d. Serum chloride 106 mEq/L b. Serum potassium 5.2 mEq/L A nurse is caring for a client who is prescribed daily doses of both digoxin (Lanoxin) and furosemide (Lasix). The client's potassium level is 3.2 mEq/L. For which of the following medication interaction is the client at risk? a. Toxic levels of furosemide b. Toxic levels of digoxin c. Sub-therapeutic levels of furosemide d. Sub-therapeutic levels of digoxin b. Toxic levels of digoxin Propranolol (Inderal) is contraindicated for a client who has which of the following conditions? a. Asthma b. Diabetes c. Angina d. Dementia a. AsthmaA nurse is reinforcing teaching for a client who has a prescription for verapamil (Calan). Which of the following statements by the clients indicates a need for further teaching? a. "I should increase the amount