A nurse is caring for a client who has cirrhosis of the liver and is receiving spironolactone. Which of the following findings indicates that the client is responding to the treatment?

A) PTT (Partial Thromboplastin Time): While the PTT is a laboratory test used to assess the intrinsic pathway of the coagulation cascade and monitor the effectiveness of heparin therapy, it is not routinely used to monitor warfarin therapy. Therefore, reviewing the PTT prior to administering warfarin is not necessary.

B) PT (Prothrombin Time): Prothrombin time measures the extrinsic pathway of the coagulation cascade and is commonly used to monitor warfarin therapy. Since warfarin works by inhibiting vitamin K-dependent clotting factors, such as factors II, VII, IX, and X, monitoring the PT allows for the assessment of the anticoagulant effect of warfarin and helps guide dosing adjustments. Therefore, reviewing the PT prior to administering warfarin is essential to ensure appropriate anticoagulation therapy.

C) WBC (White Blood Cell Count): The white blood cell count is not directly related to warfarin therapy monitoring. While an elevated white blood cell count may indicate infection, it is not specific to warfarin therapy and does not influence the administration of the medication.

D) Total iron-binding capacity: Total iron-binding capacity is a laboratory test used to assess iron status and is not relevant to monitoring warfarin therapy. It measures the body's ability to bind and transport iron in the blood, and its results are not indicative of warfarin's anticoagulant effect or dosage adjustments.

A) Elevate the extremity: This action helps reduce swelling and minimizes the spread of infiltrated fluid into surrounding tissues by using gravity to assist in draining the excess fluid back into the bloodstream. Elevating the affected limb above the level of the heart promotes venous return and can help prevent further tissue damage.

B) Flush the IV catheter: Flushing the IV catheter could exacerbate infiltration by pushing more fluid into the surrounding tissue. It is not the appropriate action for managing infiltration and could worsen the client's condition.

C) Slow the infusion rate: Slowing the infusion rate is a reasonable action to reduce the flow of fluid into the tissues and minimize further infiltration. However, it may not be sufficient to manage existing infiltration effectively or prevent tissue damage.

D) Apply pressure to the IV site: Applying pressure to the IV site is not recommended for managing infiltration. It could cause further tissue damage and discomfort for the client and is not considered a standard practice in managing this complication.