Problem: A client with CHF and diabetes is scheduled for a cardiac catherization in am. Client has current medication orders: metformin (Glucophage), metoprolol (Lopressor), hydrochlorothiazide (HCTZ), and lisinopril (Prinivil). What would be the priority nursing action? Administer all of the medications as ordered. Hold all of the medications and notify the healthcare provider. Notify healthcare provider to hold the metformin (Glucophage) prior to procedure per hospital protocol. Hold the lisinopril (Prinivil) for a K - 3.9mEq/L.