Risks and limits of CRP Kinder

CRP (C-reactive protein) in children is a widely used but non-specific marker of inflammation. Elevated levels can indicate infection, autoimmune response, or tissue damage, but they do not pinpoint the cause. In children, reference ranges vary by age and are often lower than in adults. The main risks include overinterpretation: a mildly elevated CRP may lead to unnecessary antibiotics or further invasive testing. Additionally, CRP can rise during viral infections, so a high level does not automatically confirm bacterial infection. The limits of the test include its lack of specificity, dependence on the assay method (e.g., high-sensitivity vs. standard CRP), and the fact that chronic low-grade elevations often have no clear clinical significance. For children requiring repeated CRP measurements, cumulative radiation exposure from accompanying imaging (e.g., X-rays) should be considered. Overall, CRP is a useful screening tool but not a standalone diagnostic. Evidence is based on clinical practice and observational studies, not on randomized controlled trials in children. Parents should understand that a normal CRP does not rule out serious illness, and an elevated CRP does not always require treatment.