Correct Answer: B

Rationale: To calculate the volume to administer, use the formula (1 mL 4 mg) / 5 mg = 0.8 mL. The healthcare provider should administer 0.8 mL of diazepam for a dosage of 4 mg IV push. Choice A is incorrect because it results from an incorrect calculation. Choices C and D are incorrect as they do not align with the correct calculation based on the provided dosage.

Correct Answer: D

Rationale: The initial step the nurse should take when faced with skin breakdown over the sacral area of the client is to determine the size and depth of the affected area. Assessing and documenting these aspects are crucial before initiating any treatment. This evaluation will guide the nurse in developing an appropriate care plan to address the skin breakdown effectively. Options A, B, and C are not the first steps to take in this situation. While establishing a toileting schedule and completing a functional assessment are important, assessing the size and depth of the skin breakdown is the priority to initiate proper treatment. Applying a barrier ointment without assessing the extent of the breakdown may not address the underlying issue effectively.

Correct Answer: B

Rationale: Engaging in moderate exercise for 30 minutes daily is a crucial lifestyle modification for managing hypertension. Regular physical activity helps lower blood pressure, improve cardiovascular health, and overall well-being. It is recommended to engage in activities like brisk walking, cycling, or swimming to achieve these benefits. Choices A, C, and D are incorrect. Limiting sodium intake, avoiding a diet high in saturated fats, and reducing alcohol consumption are also important lifestyle modifications for hypertension management, but engaging in moderate exercise is the most appropriate initial instruction for this client.

Correct Answer: B

Rationale: The most critical reason for initiating intravenous infusions in the upper extremities of adults is to reduce the risk of thrombosis (B). Venous return is typically better in the upper extremities, decreasing the likelihood of thrombus formation, which could be life-threatening if dislodged. Although superficial veins are easily found in the feet and ankles (A), this is not the primary reason for choosing the upper extremities. Handling a leg or foot with an IV (C) is not significantly more challenging than handling an arm or hand. The depth of veins in the feet and ankles (D) does not primarily determine the site for IV placement.

Correct Answer: B

Rationale: Applying antiembolism stockings as prescribed (B) is an effective intervention to prevent deep vein thrombosis (DVT) in a client on bed rest. While encouraging ambulation (A), elevating the legs (C), and performing passive range-of-motion exercises (D) are also beneficial, compression stockings are particularly effective in reducing the risk of DVT by promoting venous return and reducing stasis in the lower extremities.