The nurse is preparing to defibrillate a client with no breathing or pulse. Which nursing action precedes the nurse pressing the discharge button?

A. Defibrillator: Ventricular arrhythmias, such as ventricular tachycardia or fibrillation, can be life-threatening and require immediate defibrillation if the client is pulseless or unstable. Having a defibrillator ready is the highest priority for emergency response.
B. Cardioversion equipment: Cardioversion is typically used for atrial arrhythmias or stable ventricular tachycardia. It is synchronized with the cardiac rhythm and not appropriate for pulseless ventricular fibrillation, which needs unsynchronized defibrillation.
C. An ECG machine: An ECG is important for diagnosing the specific arrhythmia but does not treat the condition. While useful for assessment, it is not the priority in an emergency involving unstable ventricular rhythms.
D. A suction machine: Suction may be needed later if the client loses consciousness or vomits, but it is not specific to the treatment of ventricular arrhythmias and is not the first piece of equipment to prepare.

A. Advise the client to void while lying flat with a urinal: While voiding in a supine position is often necessary to maintain hemostasis, it is not the top priority. It is a supportive measure that follows after ensuring vascular integrity.
B. Encourage the client to drink fluids: Hydration helps flush contrast dye from the kidneys and is important, but it is a secondary priority. Bleeding at the catheter insertion site requires more immediate attention post-procedure.
C. Evaluate the client's temperature: Monitoring temperature may detect late signs of infection, but it is not a critical concern in the immediate post-catheterization period unless there are signs of systemic illness.
D. Monitor the client's pressure dressing: Bleeding or hematoma formation at the catheter insertion site (often the femoral artery) is a major concern. Frequent monitoring of the pressure dressing is essential to detect and manage hemorrhage early, making it the top priority.