A newly diagnosed teenage girl with scoliosis asks the nurse what is Cobb’s angle? You know the nurse’s answer is correct when she says this:

Choice A reason: Cobb’s angle is not used for pain management in scoliosis. It is a diagnostic measurement of spinal curvature on X-rays, quantifying the degree of lateral deviation. Pain management involves therapies like bracing or surgery, unrelated to this measurement tool. Choice B reason: Cobb’s angle is not a treatment for scoliosis but a diagnostic tool. It measures the angle of spinal curvature on radiographs to assess severity and guide treatment decisions, such as bracing or surgery, making this statement inaccurate. Choice C reason: Cobb’s angle does not identify teens at risk for scoliosis but evaluates existing curvature in diagnosed cases. Screening tools, like the forward bend test, identify risk, while Cobb’s angle quantifies confirmed spinal deformity, making this choice incorrect. Choice D reason: Cobb’s angle is the standard measurement for scoliosis, calculated on X-rays by intersecting lines from the most tilted vertebrae, quantifying lateral spinal curvature in degrees. It determines severity (e.g., mild, moderate, severe) and guides treatment, making this the correct definition.