Correct Answer: A

Rationale: To administer 4 mg of morphine, as prescribed, the LPN/LVN needs to calculate the correct volume based on the concentration provided (8 mg per ml). Since the desired dose is 4 mg, half of 8 mg (0.5 ml) is required to administer the correct amount. Therefore, the correct answer is 0.5 ml. Choices B, C, and D are incorrect as they would either underdose or overdose the patient.

Correct Answer: A

Rationale: The correct answer is A because using the spirometer every hour while awake is an effective way to prevent respiratory complications. This frequency helps in maintaining lung function and preventing atelectasis. Choice B is incorrect because blowing too hard into the spirometer can lead to hyperventilation and dizziness, making choice C also incorrect. Choice D is wrong as waiting to use the spirometer only when feeling short of breath may not provide optimal lung expansion and can lead to respiratory issues.

Correct Answer: A

Rationale: The correct action for the nurse to take when a client has a prescription for a 24-hour urine collection is to discard the first voiding. This initial voiding is typically not collected to allow for the accurate start of the 24-hour collection period. All subsequent urine voided within the specified time frame is then collected. Including the last voiding in the collection is important to ensure that the full 24-hour period is covered. It is essential to keep the urine cool by storing it in a single container on ice to prevent degradation of components. Instructing the client to stop midstream and finish urinating into the specimen container is not required for a 24-hour urine collection and is an unnecessary step.

Correct Answer: B

Rationale: The correct answer is B. Weighing daily and reporting significant weight loss is crucial when taking furosemide to monitor for potential fluid and electrolyte imbalances. Choice A is incorrect because furosemide is typically taken on an empty stomach for optimal absorption. Choice C is incorrect as furosemide can lead to potassium loss, so potassium-rich foods should be consumed. Choice D is incorrect because furosemide is usually taken earlier in the day to prevent nocturia, not at bedtime.

Correct Answer: A

Rationale: The correct action for the nurse to take when caring for a client with Clostridium difficile in contact isolation is to wear gloves when changing the client's gown. Clostridium difficile is highly transmissible, and wearing gloves helps prevent the spread of the infection. Using hand sanitizer after contact with the client (Choice B) is not enough to prevent the transmission of C. difficile, as the spores can persist and spread. Wearing a mask when entering the client's room (Choice C) is not necessary for C. difficile transmission, which primarily occurs through contact with contaminated surfaces. Cleaning the room with a disinfectant spray (Choice D) is important, but wearing gloves during direct care is the priority to prevent the nurse from acquiring and spreading the infection.