Correct Answer: A

Rationale: The correct instruction for a client prescribed nitroglycerin sublingual tablets is to lie down before taking the medication. Nitroglycerin can cause a sudden drop in blood pressure leading to dizziness or fainting, so taking the medication while lying down helps prevent falls.
Choice B is incorrect because nitroglycerin is usually taken on an empty stomach to enhance its absorption.
Choice C is incorrect as taking a double dose of nitroglycerin can lead to low blood pressure and other adverse effects.
Choice D is incorrect as nitroglycerin sublingual tablets should be stored in their original container at room temperature away from light and moisture, not in the refrigerator.

Correct Answer: C

Rationale: The correct action for the nurse to take is to ensure that the newborn wears a diaper. This is important to prevent irritation during phototherapy, as exposure to light can increase the risk of skin breakdown. Feeding the infant glucose water is unnecessary and not indicated for jaundice treatment. Keeping the infant's head uncovered allows the light to reach the skin effectively. Applying lotion to the newborn every 4 hours can interfere with the effectiveness of phototherapy and is not recommended.

Correct Answer: D

Rationale: Ensuring that the client's identification band matches the number on the blood unit is crucial for correct identification. This action helps prevent errors by confirming that the blood product is indeed intended for the specific client. Matching the client's blood type with type and cross-match specimens (
Choice
A) is important for compatibility but does not directly verify the client's identity. Confirming the provider's prescription (
Choice
B) is relevant but does not ensure the correct identification of the client. Asking the client to state their blood type and confirm the date of their last blood donation (
Choice
C) relies on the client's memory and verbal confirmation, which may not be accurate or reliable for identification purposes.

Correct Answer: B

Rationale: The correct intervention for a client with acute diverticulitis is to initiate a low-fiber diet. A low-fiber diet helps manage acute diverticulitis by reducing irritation to the colon, allowing it to heal. Administering a cleansing enema (
Choice
A) can worsen diverticulitis by increasing pressure within the colon. Applying moist heat to the abdomen (
Choice
C) may provide comfort but does not address the underlying cause. Providing a clear liquid diet (
Choice
D) is not ideal for diverticulitis management as it lacks the necessary nutrients for healing and may not provide enough bulk to prevent further irritation.

Correct Answer: A

Rationale: When a client is prescribed furosemide, monitoring potassium levels is crucial due to the drug's potential to cause hypokalemia. Furosemide is a loop diuretic that promotes potassium excretion in the urine, leading to a risk of low potassium levels. Monitoring potassium levels helps in detecting and preventing hypokalemia, which can result in adverse effects like cardiac dysrhythmias. Sodium, calcium, and hemoglobin levels are usually not directly affected by furosemide, making them less pertinent for monitoring in this specific scenario.