Correct Answer: B

Rationale: The correct answer is B: Burning sensation in the chest. A burning sensation in the chest is a classic symptom of gastroesophageal reflux disease (GERD). Abdominal distention (Choice A) is not typically associated with GERD; it is more commonly seen in conditions like bowel obstruction. Constipation (Choice C) is not a hallmark symptom of GERD, as it is more related to gastrointestinal motility issues. Frequent belching (Choice D) can occur with GERD, but it is not as specific or characteristic as the burning sensation in the chest.

Correct Answer: B

Rationale: The correct answer is B: Tachycardia. Tachycardia can indicate a hemolytic transfusion reaction, a severe and life-threatening complication of blood transfusion. The nurse should report tachycardia immediately to prevent further complications. Low back pain, flushed skin, and headache are also important to monitor during a blood transfusion, but they are not as indicative of a severe transfusion reaction as tachycardia.

Correct Answer: D

Rationale: The correct action for a client 1 day postoperative following a total knee arthroplasty is to apply ice packs to the affected knee. Ice packs help reduce swelling and pain in such clients. Administering aspirin is contraindicated due to the risk of bleeding postoperatively. Keeping the affected leg in a dependent position can impair circulation and increase the risk of complications. Flexing the affected knee for extended periods can strain the surgical site and hinder the healing process.

Correct Answer: A

Rationale: The correct answer is A: Monitor INR. INR (International Normalized Ratio) is crucial for monitoring warfarin therapy as it helps assess the therapeutic effectiveness and bleeding risks associated with the medication. INR measures the clotting tendency of blood, which is essential in determining the appropriate dosage of warfarin. Monitoring platelet count (B), sodium levels (C), or calcium levels (D) is not primarily used for assessing warfarin therapy. Platelet count is more relevant in assessing bleeding disorders, while sodium and calcium levels are typically monitored for different medical conditions unrelated to warfarin therapy.

Correct Answer: C

Rationale: The correct action the nurse should implement is to apply sequential compression devices to the client's legs. This intervention helps prevent venous stasis and reduce the risk of deep vein thrombosis (DVT). Massaging the client's legs may dislodge a clot and is contraindicated in this situation (choice A). Encouraging bed rest may increase the risk of DVT due to prolonged immobility (choice B). While administering anticoagulants is a common treatment for DVT, in this case, the question is about preventive measures, and using sequential compression devices is a non-pharmacological approach.