Correct Answer: C

Rationale: In stage III of heart failure, the client displays symptoms such as dyspnea, fatigue, and other symptoms with ordinary physical activity, known as NYHA Class III. This is consistent with the client's presentation of dyspnea with activities of daily living, indicating a moderate level of heart failure. The need for the placement of an implantable defibrillator also suggests a more advanced stage of heart failure compared to stage I or II. Stage IV is characterized by severe symptoms at rest, which the client does not exhibit based on the information provided.

Correct Answer: C

Rationale: The epicardium is the outermost layer of the heart and is also known as the visceral layer of the serous pericardium. It is a thin layer that covers the surface of the heart and is composed of connective tissue and fat. The epicardium helps to protect the heart and provides a smooth outer surface for the heart to move within the pericardial cavity.

Correct Answer: A

Rationale: A. Assess for allergies to seafood or iodine: It is essential to assess the patient for allergies to seafood or iodine because contrast material containing iodine is commonly used during an intravenous pyelogram (IVP). Allergic reactions to iodine can range from mild to severe, so assessing for allergies is crucial for patient safety.

Correct Answer: B

Rationale: In disseminated intravascular coagulation (DIC), the client experiences widespread clotting throughout the body's small blood vessels, leading to organ damage and bleeding. Maintaining skin integrity is a priority intervention because DIC can cause hemorrhage and increased risk of skin breakdown due to impaired blood circulation. Preventing pressure ulcers and promoting skin health in a client with DIC is crucial to prevent further complications. Frequent ambulation may not be safe for a client with DIC due to the risk of bleeding from compromised blood vessels. Preparation for radiograph procedures and fluid restriction may be necessary interventions depending on the client's condition, but they are not the priority in the immediate care of a client with DIC.

Correct Answer: C

Rationale: Acute kidney injury (AKI) is a common complication in critically ill patients in the intensive care unit (ICU). One of the primary interventions to reduce the risk of AKI is to maintain adequate fluid volume and cardiac output. Adequate hydration and adequate perfusion pressure are essential for renal function. Maintaining fluid volume and adequate cardiac output ensure that the kidneys receive enough blood flow and oxygen to function optimally. Conversely, inadequate fluid volume or low cardiac output can lead to decreased renal perfusion, predisposing the patient to AKI. Monitoring and optimizing fluid status and cardiac output are crucial in preventing AKI in high-risk patients in the ICU.