The nurse is caring for a one-month-old infant admitted for suspected congenital hypothyroidism. Which diagnostic test results should the nurse report to the healthcare provider?

Choice A reason: Rhabdomyolysis is not the probable cause of the findings. Rhabdomyolysis is a condition that occurs when damaged muscle tissue breaks down and releases substances into the bloodstream that can harm the kidneys. It is usually caused by trauma, infection, drugs, or extreme exercise. It does not cause radial ossification in the soft tissues, but rather dark urine, muscle weakness, and kidney failure.

Choice B reason: Osteosarcoma is the probable cause of the findings. Osteosarcoma is a type of bone cancer that usually affects the long bones of the arms and legs. It is more common in adolescents and young adults. It can cause pain, swelling, and limping in the affected area, as well as radial ossification in the soft tissues, which is a sign of tumor invasion.

Choice C reason: Growing pains are not the probable cause of the findings. Growing pains are a common cause of leg pain in children and adolescents, but they are not associated with any physical abnormality or disease. They usually occur in both legs, not just one, and they are more likely to affect the calves, shins, or thighs, not the knees. They do not cause swelling, tenderness, or radial ossification in the soft tissues.

Choice D reason: Hemosiderosis is not the probable cause of the findings. Hemosiderosis is a condition that occurs when excess iron deposits in the tissues, usually as a result of repeated blood transfusions or hemolytic anemia. It can affect various organs, such as the liver, lungs, heart, and skin, but not the bones. It does not cause pain, swelling, or radial ossification in the soft tissues, but rather fatigue, shortness of breath, chest pain, and skin discoloration.

Choice A reason: Changing position every 2 hours is not the most important intervention that the nurse should implement. This is because the child's position is limited by the traction and the splint, and frequent repositioning may interfere with the alignment and stability of the fracture. The nurse should only change the position of the child as ordered by the physician and with the assistance of another nurse.

Choice B reason: Assessing skin for redness and signs of tissue breakdown is not the most important intervention that the nurse should implement. This is because the skin is not directly in contact with the traction or the splint, and the risk of pressure ulcers is low. The nurse should still inspect the skin regularly and provide skin care as needed, but this is not the priority.

Choice C reason: Cleansing pin sites as prescribed is not the most important intervention that the nurse should implement. This is because the pin sites are not the main source of infection or complication in this type of traction. The nurse should still follow the protocol for pin site care and monitor for signs of infection, such as redness, swelling, drainage, or odor, but this is not the priority.

Choice D reason: Monitoring peripheral pulses and sensation in the right leg is the most important intervention that the nurse should implement. This is because the traction and the splint can impair the circulation and nerve function of the affected extremity, leading to complications such as compartment syndrome, ischemia, or nerve damage. The nurse should check the pulses, temperature, color, capillary refill, and sensation of the right leg at least every hour and report any changes or abnormalities to the physician.