Correct Answer: A

Rationale: The correct answer is A: Encouraging early ambulation to prevent deep vein thrombosis. Early ambulation helps prevent blood clot formation in the legs, reducing the risk of deep vein thrombosis post-surgery. It also promotes circulation and aids in preventing complications like pneumonia. Administering pain medication (B) is important, but preventing complications should take priority. Providing wound care (C) is essential but not the top priority. Encouraging a high-protein diet (D) is beneficial for healing, but immediate post-operative mobility is crucial for preventing complications.

Correct Answer: A

Rationale: The correct answer is A: Administer antibiotics. Antibiotics are crucial in treating sepsis as they help to fight the underlying infection causing the condition. Administering antibiotics promptly can prevent the infection from spreading and worsening. Fluids (choices B and C) are important for treating sepsis to maintain blood pressure and support organ function, but antibiotics are the primary intervention to target the infection. Administering oxygen (choice D) may be necessary to support respiratory function in septic patients, but it is not the most effective action to address the underlying infection.

Correct Answer: C

Rationale: The correct answer is C: Shortness of breath and chest pain. This is most concerning because it could indicate a pulmonary embolism, a serious complication of DVT where a blood clot travels to the lungs. Shortness of breath and chest pain are signs of compromised respiratory and cardiac function. A: Pain and swelling in the leg are common symptoms of DVT but not as concerning as symptoms of a pulmonary embolism. B: Redness and warmth around the affected area are typical signs of inflammation associated with DVT but do not indicate a life-threatening complication like a pulmonary embolism. D: Pale skin and decreased pulse in the affected leg could be signs of compromised circulation due to DVT, but they are not as immediately life-threatening as symptoms of a pulmonary embolism.

Correct Answer: A

Rationale: The correct answer is A: Inspect for visible pulsation. This is because an arteriovenous fistula for hemodialysis should have a visible pulsation, indicating proper blood flow. Palpating for thrill (B) and auscultating for bruit (C) are also common assessments for an arteriovenous fistula, but inspecting for visible pulsation is the most direct and reliable way to assess the patency of the fistula. Percussing for dullness (D) is not relevant in this context as it does not provide information about the vascular access site.

Correct Answer: A

Rationale: The correct answer is A: Administer antibiotics. Peritonitis is an inflammation of the peritoneum often caused by infection. Administering antibiotics is crucial to combat the infection. It is important to treat the underlying cause first before focusing on symptom management. Administering analgesics (B) may provide temporary relief but won't address the infection. Applying an ice pack (C) is not appropriate for peritonitis as it won't treat the infection. Performing a laparotomy (D) is a surgical procedure that may be necessary in severe cases but is not the initial nursing action.