Correct Answer: A

Rationale: The correct answer is A: Administer IV fluids. In sepsis, early fluid resuscitation is crucial to prevent hypotension and organ dysfunction. IV fluids help restore perfusion and stabilize the client. Administering antibiotics (choice B) is important but comes after fluid resuscitation. Performing a blood culture (choice C) is essential but not the first priority. Performing an abdominal assessment (choice D) is not directly related to managing sepsis and should not be the initial priority.

Correct Answer: A

Rationale: The correct answer is A: Administer IV fluids. In acute renal failure, maintaining adequate hydration is crucial to support kidney function and prevent further damage. IV fluids help improve renal perfusion and promote urine output. Hemodialysis may be necessary in severe cases but initial intervention is fluid resuscitation. Administering pain relief or morphine is not the priority in acute renal failure as addressing hydration status takes precedence over pain management.

Correct Answer: D

Rationale: The correct answer is D: Administer corticosteroids. In a client with chest pain and a history of myocardial infarction, the first priority is to address potential inflammation in the myocardium. Corticosteroids help reduce inflammation and stabilize the myocardium, which is crucial in preventing further damage post-myocardial infarction. Administering nitroglycerin (A) is important for vasodilation, but it is typically used after corticosteroids. Morphine (B) and analgesics (C) may provide pain relief but do not address the underlying inflammation. Administering corticosteroids is the most appropriate first step to manage myocardial inflammation and protect the heart tissue.

Correct Answer: B

Rationale: The correct answer is B: Chronic obstructive pulmonary disease (COPD). The patient's history of smoking, persistent cough, and worsening symptoms over months are indicative of COPD, a progressive lung disease commonly caused by smoking. Asthma (A) typically presents with intermittent symptoms, bronchitis (C) may cause cough but not necessarily worsening over time, and pulmonary embolism (D) is characterized by sudden onset symptoms and is less likely in this case. COPD is the most concerning due to the patient's smoking history and progressive symptoms.

Correct Answer: A

Rationale: The correct first action when a client develops a fever after surgery is to administer antipyretics (A). Fever post-surgery can indicate infection, and antipyretics help lower the body temperature. Administering pain medications (B) may mask the fever's underlying cause. Providing fluids (C) is essential but not the priority. Providing wound care (D) is important but comes after addressing the fever. Administering antipyretics promptly helps manage the fever and allows for further assessment and intervention if needed.