A client with atrial fibrillation is scheduled for an elective cardioversion.

The nurse prepares for the procedure by inserting two intravenous (IV) catheters and connecting the monitoring lead wires to the client.
Which action is most crucial for the nurse to take before initiating the cardioversion?

Choice A rationale
The absence of coarse crackles is not necessarily an indication that chest physiotherapy (CPT) has been effective for a client with chronic obstructive pulmonary disease (COPD). Coarse crackles are often heard in conditions where there is fluid in the airways, such as pneumonia or heart failure. While their absence might indicate that there is no fluid in the airways, it does not necessarily mean that secretions have been effectively mobilized.
Choice B rationale
An increase in breath sounds is a good indication that chest physiotherapy (CPT) has been effective for a client with COPD3. CPT is a group of therapies designed to improve respiratory efficiency, promote expansion of the lungs, strengthen respiratory muscles, and eliminate secretions from the respiratory system. When these secretions are effectively mobilized and removed, breath sounds can become clearer and more easily heard.
Choice C rationale

The absence of fine crackles is not necessarily an indication that CPT has been effective for a client with COPD. Fine crackles are often heard in conditions where there is fluid in the airways or alveoli, such as pneumonia or heart failure. While their absence might indicate that there is no fluid in the airways or alveoli, it does not necessarily mean that secretions have been effectively mobilized.
Choice D rationale
An increase in respiratory rate is not necessarily an indication that CPT has been effective for a client with COPD. In fact, an increased respiratory rate could indicate respiratory distress, which could suggest that the therapy has not been effective or that the client’s condition has worsened.

Choice A rationale
The most crucial intervention for a nurse to include in the care plan of a client with a deep vein thrombosis (DVT) in the left leg who is on a heparin protocol is to monitor for bleeding side effects related to heparin therapy. Heparin is an anticoagulant medication that prevents the formation of blood clots. While it is an effective treatment for DVT, it can also increase the risk of bleeding. Therefore, it is essential for the nurse to closely monitor the client for any signs of bleeding, such as unusual bruising, blood in urine or stool, or bleeding gums.
Choice B rationale
While promoting movement can help prevent a pulmonary embolism (a potential complication of DVT), it is not the most crucial intervention when a client is on a heparin protocol. Excessive movement can potentially dislodge the clot, leading to a pulmonary embolism. Therefore, while movement is important, it should be done under the guidance of a healthcare professional.
Choice C rationale
Checking blood pressure and heart rate at least every 4 hours is a standard nursing intervention for many clients, not just those with DVT. While it is important to monitor these vital signs, it is not the most crucial intervention for a client with DVT on a heparin protocol.
Choice D rationale

Measuring the circumference of each calf can help assess for leg edema, which can be a sign of DVT. However, this is not the most crucial intervention for a client on a heparin protocol. The priority is to monitor for bleeding side effects related to the heparin therapy.