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: Hypokalemia. Furosemide, a loop diuretic, can lead to potassium loss in the body, resulting in hypokalemia. This electrolyte imbalance is commonly associated with furosemide use due to its mechanism of action in the kidneys. Hyponatremia (choice B) is not typically associated with furosemide. Hyperkalemia (choice C) and hypercalcemia (choice D) are not common electrolyte imbalances seen with furosemide use.

Correct Answer: A

Rationale: The correct method of administering insulin to a patient with diabetes is to administer it subcutaneously. Insulin is typically injected into the fatty tissue just below the skin, allowing for a slow and consistent absorption into the bloodstream. Administering insulin intramuscularly (Choice B) is not recommended as it can lead to unpredictable absorption rates and potential complications. Administering insulin intravenously (Choice C) is only done in specific medical settings and not for routine diabetes management. Administering insulin orally (Choice D) is ineffective as the stomach acid would break down the insulin before it can be absorbed.

Correct Answer: A

Rationale: Lorazepam is the correct choice for managing acute alcohol withdrawal symptoms due to its effectiveness in controlling agitation and tremors associated with this condition. Atenolol (Choice B) is a beta-blocker mainly used for hypertension and angina, not for alcohol withdrawal symptoms. Naltrexone (Choice C) is used for alcohol dependence treatment by reducing cravings and the rewarding effects of alcohol, but it is not typically used in acute withdrawal situations. Methadone (Choice D) is an opioid agonist mainly used for opioid detoxification and maintenance therapy, not for alcohol withdrawal.

Correct Answer: A

Rationale: The correct answer is Hypokalemia. Diuretics, such as furosemide, commonly cause potassium loss in patients, leading to hypokalemia. This electrolyte imbalance should be closely monitored to prevent complications like cardiac arrhythmias. Hypercalcemia (Choice B) is not typically associated with diuretic use. Hyponatremia (Choice C) involves low sodium levels and can occur in conditions like syndrome of inappropriate antidiuretic hormone secretion (SIADH) but is not directly caused by diuretics. Hypermagnesemia (Choice D) is an excess of magnesium, usually not a common electrolyte imbalance induced by diuretics.