A nurse is preparing to administer warfarin to a client who has chronic atrial fibrillation.Which of the following laboratory values should the nurse monitor prior to administering the medication?

Choice A rationale

Closing the doors can help contain the smoke, but it is not the first action. The priority is to activate the fire alarm to alert the fire department and initiate the building's emergency procedures.

Choice B rationale

Activating the fire alarm system ensures that all occupants are alerted to the fire, and the fire department is notified. This is the first step in managing a fire emergency.

Choice C rationale

Assisting the client to a nearby common area is important for their safety, but it should be done after activating the fire alarm.

Choice D rationale

Using a fire extinguisher may be necessary if the fire is small and contained, but the first priority is to alert others and get professional help on the way.

The nurse should clarify the prescription for Digoxin due to the client's Irregular heart rhythm.

Rationale for correct prescription: Digoxin requires clarification because it can cause or exacerbate irregular heart rhythms. The client's irregular heart rhythm could indicate digoxin toxicity or an inappropriate dose. Monitoring and adjusting the digoxin prescription can prevent complications. Digoxin is used to control atrial fibrillation but needs careful management. Clarification ensures safe and effective use.

Rationale for other options: Warfarin does not need immediate clarification as there is no indication of excessive bleeding risk. Metoprolol is unlikely to be the cause of irregular rhythm in this scenario. Atorvastatin, used for hyperlipidemia, does not affect heart rhythm. Reported dizziness can be due to various causes and is not specific to digoxin. Palpitations are common in atrial fibrillation and need broader management beyond digoxin adjustment. Irregular heart rhythm strongly points to potential issues with digoxin. Bleeding risk pertains to warfarin management, not relevant here.

Clarification of digoxin is the priority due to direct impact on heart rhythm and patient safety.