A nurse is caring for a client who is 5 hours postoperative following a transurethral resection of the prostate (TURP). The nurse notes that the client's indwelling urinary catheter has not drained in the past hour. Which of the following actions should the nurse take first?

Choice A Reason:
A 10 mm wheal is not indicative of TB infection. A wheal is a raised, often itchy area of skin that usually signifies an allergic reaction, not an infection. The TST looks for induration, which is a firm swelling, as a sign of TB infection.

Choice B Reason:
A 5 mm induration is considered positive in certain high-risk groups, such as people living with HIV, recent contacts of TB patients, or those with a history of organ transplants. For individuals without these risk factors, a 5 mm induration is not considered a positive result.

Choice C Reason:
A 15 mm induration is considered a positive TST result for individuals with no known risk factors for TB. This indicates that the person's immune system has reacted to the tuberculin purified protein derivative (PPD) injected under the skin, suggesting exposure to TB bacteria.

Choice D Reason:
Erythema, or redness of the skin, is not measured when interpreting TST results. The test measures induration, which is a palpable, raised, hardened area or swelling. Therefore, a 4 mm erythema does not indicate TB infection.

Choice A reason:
Applying a foot plate to the bed is not primarily intended to prevent pressure points from developing around the edges of the splint. A foot plate can help in maintaining proper alignment and preventing foot drop, but it does not address the issue of pressure points caused by the splint.

Choice B reason:
Repositioning the client is a key intervention to prevent pressure points. By changing the client's position regularly, the nurse can ensure that no single area is under prolonged pressure, which could lead to skin breakdown and pressure sores. This is particularly important in clients with limited mobility due to skeletal traction.

Choice C reason:
Removing the weights for a few minutes each hour is not a standard practice for preventing pressure points in balanced skeletal traction. The weights are integral to maintaining the necessary pull on the fractured femur, and their removal could disrupt the traction setup and potentially affect fracture healing.

Choice D reason:
Applying lotion to the skin under the edges of the splint is not recommended as it could soften the skin and make it more susceptible to injury. Instead, padding and proper positioning are used to protect the skin from the hard edges of the splint.