A nurse in a clinic is caring for a client who has a prescription for digoxin. Which of the following statements indicates the client is experiencing digoxin toxicity?

A. Heparin should be administered using IV tubing that is specifically labeled for heparin or that has been dedicated for anticoagulant use only. However, this is not the most important action.

B. Heparin is not typically administered as a bolus (large single dose) because of its rapid onset of action and potential for causing bleeding complications. Instead, heparin is usually administered as a continuous IV infusion to achieve and maintain therapeutic anticoagulation.
C. While vitamin K is an antidote for reversing the effects of warfarin (a different type of anticoagulant), it is not used for reversing the effects of heparin. The reversal agent for heparin is protamine sulfate. Therefore, having vitamin K available is not necessary for managing a client receiving heparin.
D. The aPTT is a laboratory test used to monitor the therapeutic effect of heparin therapy. It measures the clotting time of blood and helps ensure that the client's heparin infusion is within the desired therapeutic range. Checking aPTT regularly (usually every 4-6 hours initially, then adjusting based on results) is essential to maintain therapeutic anticoagulation and avoid complications like bleeding or clotting.

A. Applying a warm compress can help dilate the blood vessels, potentially improving circulation around the IV site. This can sometimes alleviate discomfort caused by irritation or infiltration. However, if there is significant pain or swelling, warm compresses may not be sufficient.
B. Applying firm pressure on the syringe plunger during the flush is not recommended. Excessive force could potentially cause damage to the vein or exacerbate pain and discomfort. It's important to flush gently to maintain patency and avoid causing further irritation or complications.
C. If the client reports pain above the IV saline lock and there are signs of infiltration (such as swelling, coolness, or blanching of the skin around the site), removing the IV saline lock may be necessary. Infiltration occurs when IV fluid leaks into the surrounding tissue instead of flowing into the vein, which can lead to discomfort and complications.
D. Injecting the solution more slowly during the flush can help minimize discomfort and reduce the risk of causing further damage. Slower infusion allows for better tolerance by the vein and surrounding tissues, decreasing the likelihood of pain or infiltration.