Correct Answer: B

Rationale: The correct answer is B: Perform the Crede maneuver. The Crede maneuver is a technique used to manage a flaccid bladder by applying manual pressure over the bladder area to assist in the expulsion of urine. This technique helps promote bladder emptying. Choice A is incorrect because using manual pressure to express urine is not a standardized technique and may cause harm. Choice C is incorrect as applying an external urinary drainage device does not address the need for bladder training. Choice D is unrelated to bladder training for a flaccid bladder.

Correct Answer: A

Rationale: The correct answer is A: 'Blow cool air from a hairdryer under the cast.' Blowing cool air can help relieve itching without damaging the cast or causing injury. Choice B, twisting the cast back and forth, can lead to discomfort, skin irritation, or even injury. Choice C, shaking powder into the cast, can create a mess, increase the risk of skin issues, and interfere with proper healing. Choice D, pushing a pencil under the cast edge, is dangerous as it can cause injury to the child's skin or the underlying tissues. Therefore, the safest and most effective option to relieve itching under the cast is to blow cool air from a hair dryer.

Correct Answer: C

Rationale: The correct answer is C, International Normalized Ratio (INR). While INR is commonly used to monitor the effectiveness of warfarin therapy, in the case of heparin therapy, the Partial Thromboplastin Time (PTT) is the preferred test. Choice A, Prothrombin Time (PT), measures the activity of the extrinsic pathway of coagulation and is not the best choice for monitoring heparin therapy. Choice D, Activated Partial Thromboplastin Time (aPTT), is similar to PTT and is used to monitor heparin therapy, but PTT is the more specific test. Therefore, monitoring PTT is crucial in determining the effectiveness and safety of heparin therapy.

Correct Answer: B

Rationale: To ensure the effectiveness of the antibiotic and manage blood glucose levels, the client should take the Zithromax two hours after eating. Option A is incorrect because obtaining a new breakfast tray is not necessary to administer the missed dose. Option C is incorrect as skipping a dose can lead to decreased effectiveness of the antibiotic. Option D is incorrect because providing an antacid is not indicated in this situation.

Correct Answer: A

Rationale: In this situation, the priority action for the nurse is to apply a sterile saline dressing to the wound. This helps to cover and protect the exposed bowel, preventing infection and maintaining a moist environment for wound healing. Option B, notifying the healthcare provider, is important but should come after addressing the immediate need of covering the wound. Administering pain medication (option C) and covering the wound with an abdominal binder (option D) are not appropriate initial actions for this situation.