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: B

Rationale: The correct answer is B. The statement "I need to use a soft toothbrush and an electric razor to avoid injuries" indicates that the client understands the importance of preventive measures to minimize bleeding risks while on anticoagulant therapy. Using a soft toothbrush and an electric razor can help prevent accidental cuts that may lead to bleeding complications. It shows the client's understanding of the need to take precautions to avoid potential harm while on long-term anticoagulant therapy. The other statements do not directly address safety measures to prevent bleeding complications associated with anticoagulant therapy.

Correct Answer: B

Rationale: Ventricular fibrillation is the dysrhythmia most commonly associated with sudden cardiac death (SCD). Ventricular fibrillation is a rapid, chaotic, and disorganized electrical activity in the ventricles that leads to ineffective contraction. This dysrhythmia can quickly progress to hemodynamic collapse and ultimately cardiac arrest, resulting in sudden cardiac death if not promptly treated with defibrillation. Atrial flutter, paroxysmal supraventricular tachycardia, and junctional escape rhythm are not typically associated with as high a risk of sudden cardiac death as ventricular fibrillation.

Correct Answer: A

Rationale: Encouraging oral intake of fluids when permitted is the most appropriate intervention to support the pediatric client's fluid status post-surgery. Adequate hydration is essential for the recovery process, and oral intake of fluids helps maintain fluid balance. Limiting oral and intravenous intake of fluids (option B) would not be beneficial in promoting hydration and recovery. Continuing normal saline administration even after oral intake is normal (option C) may lead to fluid overload. Converting the intravenous line to a saline lock immediately after surgery (option D) may not be ideal as the client may still need intravenous fluids to support hydration until they can tolerate oral intake effectively.

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.