Correct Answer: A

Rationale: The highest priority nursing intervention for a laboring client following administration of regional anesthesia is to ensure safety by raising the side rails and placing the call bell within reach. This is crucial to prevent falls and to ensure that the client can call for assistance if needed. Teaching the client how to push effectively (Choice B) is important but not the highest priority at this moment. Timing and recording uterine contractions (Choice C) are essential but not as immediate as ensuring safety post-anesthesia. Positioning the client for proper distribution of anesthesia (Choice D) is important but ensuring immediate safety takes precedence in this situation.

Correct Answer: A

Rationale: Verifying the client's blood type is crucial before administering PRBCs to ensure compatibility and prevent transfusion reactions. Checking the client's blood type is essential in blood transfusions. Ensuring the PRBCs are warm is not a priority as the temperature should be within a specific range regardless of the client's preference. Checking the client's vital signs is important but not as crucial as verifying the blood type before a blood transfusion. Obtaining the client's consent is important for any procedure but does not directly impact the safety and success of administering PRBCs.

Correct Answer: A

Rationale: The correct answer is A: Avoiding the administration of high levels of oxygen for extended periods. Oxygen toxicity can occur when high levels of oxygen are given for a prolonged period. It is important to monitor and adjust the oxygen levels as needed to prevent toxicity. Choice B is incorrect because administering a sedative to slow the respiratory rate does not directly prevent oxygen toxicity. Choice C is incorrect as removing the nasal cannula during the night can compromise the client's oxygenation. Choice D is incorrect as running oxygen through a hydration source does not prevent oxygen toxicity; instead, it may introduce risks associated with the hydration source.

Correct Answer: C

Rationale: The correct answer is C: 'The full thickness burn has destroyed the nerves.' In full thickness burns, also known as third-degree burns, the nerve endings are destroyed, leading to a lack of pain sensation at the site of the burn. The description of the burn as dry, waxy, and white indicates a full thickness burn. Choices A, B, and D are incorrect because they do not explain the absence of pain in full thickness burns. Choice A is incorrect as a full-thickness burn involves significant tissue destruction. Choice B is incorrect because nerve compression would not explain the lack of pain in this context. Choice D is incorrect because second-degree burns, unlike full-thickness burns, are painful due to nerve endings being intact.

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.