Laboratory reference ranges reflect methods, populations, and policies, and experienced clinicians interpret them in context rather than applying fixed cutoffs theoretically.

A set of normal values of three-dimensional echocardiographic right ventricular volume and function was first established in a large Chinese population, which was significantly smaller than those ...

A urine protein-creatinine ratio (UPCR) test looks for high levels of protein in your urine, which can happen in kidney disease. Results that are higher than average may be a sign of a kidney-related ...