Correct Answer: B

Rationale: Enoxaparin should be administered with the needle at a 90-degree angle to ensure proper subcutaneous delivery. Choice B is correct as it aligns with the recommended angle for subcutaneous injections. Administering enoxaparin at a 45-degree angle (Choice A), 30-degree angle (Choice C), or 15-degree angle (Choice D) would not be appropriate and may lead to improper administration or absorption of the medication.

Correct Answer: A

Rationale: Gas pains in the periumbilical area postoperatively are often caused by impaired peristalsis and bowel function. Following abdominal surgery, it is common for peristalsis to be reduced due to surgical manipulation and anesthesia effects. This reduction in peristalsis can lead to the accumulation of gas in the intestines, resulting in gas pains. Infection at the surgical site (Choice B) would present with localized signs of infection such as redness, swelling, warmth, and drainage, rather than diffuse gas pains. Fluid overload (Choice C) would manifest with symptoms such as edema, increased blood pressure, and respiratory distress, not gas pains. Inadequate pain management (Choice D) may lead to increased discomfort, but it is not the primary cause of gas pains in the periumbilical area following a small bowel resection.

Correct Answer: A

Rationale: Inserting the IV catheter so that the hub rests at the insertion site reduces the risk of contamination along the length of the catheter. This technique helps prevent introducing microbes into the bloodstream during the catheter insertion process. Shaving excess hair is unnecessary and can increase the risk of skin irritation and infection. Cleansing the site with hydrogen peroxide is outdated as it can cause tissue damage and delay wound healing. Palpating the site just before insertion can introduce bacteria from the skin surface into the insertion site, increasing the risk of infection.

Correct Answer: A

Rationale: Choice A is the correct answer because the client's statement about the best time to concentrate indicates readiness for learning. This statement shows an awareness and interest in learning. Choice B is incorrect as it indicates a barrier to learning due to not having glasses. Choice C is incorrect as it shows a lack of understanding or motivation for learning. Choice D is incorrect as it suggests a lack of personal involvement or responsibility in the learning process since the client is deflecting the responsibility to someone else.

Correct Answer: A

Rationale: When a client is falling, allowing them to slide down your leg can help control the descent and prevent injury. This technique ensures a more controlled fall compared to attempting to catch or stop the client abruptly, which could lead to both the client and the nurse getting injured. Placing arms around the client may not provide enough support or control during the fall. Remaining upright or moving quickly in front of the client might not be practical or safe in this scenario.