Correct Answer: C

Rationale: Performing frequent oral care with a tooth sponge is the most appropriate nursing measure in this situation. It helps maintain oral hygiene, prevent dryness, and provide comfort for a client with an NG tube. Allowing the client to melt ice chips may not be suitable immediately post-surgery due to potential risks. Providing mints or swabbing the mouth with glycerin swabs may not address the need for proper oral care and hygiene, which is essential for a client with an NG tube.

Correct Answer: C

Rationale: Loss of pulse in the extremity can indicate an arterial blockage, requiring immediate medical evaluation. Increased blood pressure and heart rate are common physiological responses after cardiac catheterization and may not necessarily indicate a complication. Decreased urine output is more indicative of renal function and may not be directly related to complications from the procedure.

Correct Answer: C

Rationale: The correct answer is C because bran cereal is a high-fiber food that can effectively alleviate constipation by promoting regular bowel movements. Option A, an apple, while a healthy snack, may not provide as much fiber as bran cereal. Option B, sweet potatoes, are nutritious but may not be as high in fiber as bran cereal. Option D, almonds, are a good source of healthy fats and protein but do not provide as much fiber as bran cereal.

Correct Answer: A

Rationale: In the scenario of a client developing urticaria during a blood transfusion, the immediate priority for the nurse is to stop the infusion. This action is crucial to prevent further administration of the allergen causing the reaction. Slowing the rate of infusion (Choice B) may not be sufficient to address the allergic response effectively. While monitoring vital signs (Choice C) is important, stopping the infusion takes precedence to prevent worsening of the reaction. Administering Benadryl (Choice D) should be considered after stopping the infusion, following the healthcare provider's orders, and assessing the client's condition.

Correct Answer: C

Rationale: A cold, pale lower leg is the most concerning finding as it indicates poor blood flow, potentially suggesting a serious circulatory problem that requires immediate attention. Diminished bowel sounds, loss of appetite, and tachypnea may be relevant but are not as indicative of a critical circulatory issue as a cold, pale lower leg.