A nurse is collecting data from a client who has scleroderma. Which of the following findings should the nurse expect?

Choice A reason: The correct answer is a because hyperkalemia, or high serum potassium levels, often leads to peaked T waves on an ECG. A reduction of T wave amplitude indicates that potassium levels are decreasing and the medication is effective.

Choice B reason: P wave duration is not typically affected by hyperkalemia. Changes in the P wave are more commonly associated with atrial abnormalities, not electrolyte imbalances.

Choice C reason: Widening of the QRS complex is a sign of severe hyperkalemia and indicates worsening of the condition. The goal of treatment is to prevent such changes, not to observe them as an indication of effectiveness.

Choice D reason: Restoration of QRS complex amplitude is not a specific indicator of hyperkalemia or its treatment. The focus should be on changes in the T wave and other signs of electrolyte normalization.

Choice A reason: Russell's traction involves the use of a sling under the knee to apply a pulling force on the femur. This helps in aligning and stabilizing the fractured femur, allowing for proper healing. The sling supports the leg, while weights provide the necessary traction force.

Choice B reason: A cervical halter is used in cervical traction to relieve muscle spasms and align the cervical spine, not in Russell's traction. This type of traction is not related to treating femur fractures.

Choice C reason: A pelvic girdle belt is used in pelvic traction to relieve lower back pain and stabilize pelvic fractures, not in Russell's traction. Russell's traction specifically pertains to femur fractures.

Choice D reason: Skeletal pins are used in skeletal traction, where pins are inserted into the bone to apply direct traction. Russell's traction, however, does not use skeletal pins; it uses a sling and weights to apply traction.