Correct Answer: A

Rationale: The correct answer is A, Hypokalemia. Furosemide, a loop diuretic, commonly leads to potassium loss in the urine, causing hypokalemia. This electrolyte imbalance should be closely monitored in patients taking furosemide. Choices B, C, and D are incorrect because hypercalcemia, hyponatremia, and hyperkalemia are not typically associated with furosemide use.

Correct Answer: C

Rationale: The correct instruction is to take ferrous sulfate on an empty stomach to increase absorption. This is because taking it with food or dairy products like milk can reduce its absorption. Orange juice is not recommended as it may interfere with the absorption of iron. Taking ferrous sulfate on an empty stomach may cause gastrointestinal upset, but this can be minimized by gradually increasing the dose.

Correct Answer: A

Rationale: Administering oxygen is the best intervention for a patient experiencing respiratory distress because it helps improve oxygenation. Oxygen therapy is the initial and priority intervention to ensure an adequate oxygen supply to the body tissues. Administering bronchodilators (Choice B) may be appropriate for specific respiratory conditions like asthma or COPD but is not the first-line intervention in all cases of respiratory distress. Administering IV fluids (Choice C) is not a standard intervention for respiratory distress unless there is an underlying cause like dehydration. Repositioning the patient (Choice D) can aid in optimizing ventilation but is not the primary intervention for respiratory distress.

Correct Answer: A

Rationale: The correct answer is to apply a hydrocolloid dressing. Stage 3 pressure ulcers are characterized by full-thickness skin loss involving damage to or necrosis of subcutaneous tissue, which requires a moist environment for healing. Hydrocolloid dressings help maintain a moist wound environment, promote healing, and provide protection. Providing wound debridement may be necessary but is not the priority intervention at this stage. Changing the dressing daily is important for wound care but not the priority over creating an optimal healing environment. Elevating the affected area can help with circulation and reduce swelling, but it is not the priority intervention for a stage 3 pressure ulcer.

Correct Answer: A

Rationale: The correct answer is A: 'Regulate blood glucose levels.' Administering insulin to a patient with diabetes helps regulate blood glucose levels by facilitating the uptake of glucose into cells, thereby lowering high blood sugar levels. This process aims to prevent hyperglycemia and its associated complications. Choice B, 'Increase metabolism,' is incorrect as the primary role of insulin is not to increase metabolism directly. Choice C, 'Prevent complications,' is partially correct as regulating blood glucose through insulin administration does help prevent complications associated with uncontrolled diabetes, but it is not the primary purpose. Choice D, 'Promote insulin sensitivity,' is incorrect as insulin itself is administered to compensate for the lack of endogenous insulin in diabetic patients, rather than to promote sensitivity to it.