A nurse is evaluating the allergy profile of a client who has Graves' disease and is to undergo a thyroid scan. The nurse should identify which of the following allergies as a contraindication for the client to undergo a thyroid scan?

A. Povidone-iodine may be used as a wound cleanser, but the method described here (using cotton balls) is not typically recommended as it can leave fibers in the wound.

B. Administering oral analgesia prior to wound irrigation may be appropriate for pain management but is not directly related to understanding wound irrigation technique.

C. Warming irrigation solution in a microwave oven can lead to uneven heating and potential tissue damage. This method is not recommended for warming irrigation solution.

D. Irrigating the wound from the top to the bottom ensures that contaminants are flushed away from the wound site, reducing the risk of infection and promoting healing. This indicates an understanding of proper wound irrigation technique.

A.

A. Adequate hydration helps maintain skin integrity and reduces the risk of pressure injuries by keeping the skin hydrated and resilient.

B. Moisturizing dry skin is important for overall skin health but may not directly prevent pressure injuries.

C. While maintaining a comfortable room environment is important for the client's overall well- being, a dehumidifier specifically may not directly prevent pressure injuries.

D. Donut ring pillows are not recommended for pressure injury prevention as they can actually increase pressure on vulnerable areas of the skin, leading to tissue damage.