Correct Answer: A

Rationale: The correct answer is to administer nitroglycerin. Nitroglycerin is the priority intervention for a patient with chest pain because it helps relieve chest pain by dilating coronary arteries, improving blood flow to the heart muscle. Assessing pain level, monitoring vital signs, and providing oxygen therapy are important interventions as well, but administering nitroglycerin takes precedence in addressing the immediate symptom of chest pain and potential cardiac ischemia.

Correct Answer: D

Rationale: The correct answer is to cleanse the wound from the center outwards. This technique helps prevent infection and promotes healing by ensuring that any contaminants are moved away from the center of the wound. Administering a protein supplement (choice A) or increasing protein intake in the client's diet (choice B) may be beneficial for overall healing but are not the most appropriate interventions specifically for wound care. Increasing IV fluid intake (choice C) is important for hydration but is not the most appropriate intervention for managing a pressure ulcer.

Correct Answer: A

Rationale: Diabetic ketoacidosis and retinopathy are indeed common complications of untreated Type 1 diabetes. Diabetic ketoacidosis occurs when the body starts breaking down fat for fuel, leading to a dangerous buildup of ketones in the blood. Retinopathy refers to damage to the blood vessels of the retina due to high blood sugar levels over time. The other choices, hypoglycemia and neuropathy (choice B), hypotension and kidney failure (choice C), and infection and fluid overload (choice D) are not typically the primary complications associated with untreated Type 1 diabetes.

Correct Answer: C

Rationale: Choice C is the correct answer. During a colonoscopy, clients are typically sedated, so they do not feel any pain during the procedure. Choices A, B, and D are incorrect. Clients are usually required to stop eating and drinking at least 24 hours before a colonoscopy, and there are specific dietary restrictions that need to be followed before the procedure to ensure a successful examination.

Correct Answer: D

Rationale: The correct instruction is to use the peak flow meter after using the rescue inhaler. This ensures accurate monitoring of asthma control during symptoms. Choice A is incorrect because peak flow measurements should be done before taking medications. Choice B is incorrect as the client should blow into the meter quickly and forcefully to get an accurate reading. Choice C is also incorrect as peak flow should be measured regularly, not just when feeling short of breath.