A school nurse is performing an annual screening on a 12-year-old student. To assess for scoliosis, the nurse should:

The Adam's forward bend test is the primary clinical screening tool for identifying adolescent idiopathic scoliosis. As the patient flexes forward, the nurse observes for rib humps or spinal rotation, which indicate a structural rather than functional curve. This maneuver accentuates the asymmetry caused by the vertebral rotation that accompanies the lateral curvature. A. Ask the client to bend forward at the waist: This position makes any rib asymmetry or unilateral prominence of the back more visible. It is the most sensitive non-radiographic method for screening students for scoliosis. It allows the nurse to see the rotation of the spine that occurs in structural curves. B. Palpate the spinous processes: While palpation can identify tenderness or significant lateral deviation, it is less effective than the forward bend test for detecting early or mild scoliosis. In many cases, the spinous processes appear aligned even when the vertebral bodies have rotated significantly. C. Measure the length of the spine from neck to waist: Measuring the absolute length of the spine does not provide information about its lateral curvature or rotation. It is not a diagnostic or screening maneuver for scoliosis. It is a measurement of vertical growth rather than spinal alignment. D. Palpate for crepitus: Crepitus is a grating sound or sensation produced by friction between bone and cartilage, often associated with osteoarthritis or fractures. It is not a feature of scoliosis, which is a structural deformity of the spinal axis. Palpation for crepitus does not identify lateral curvature.