Mosab Nouraldein Mohammed Hamad2023-12-102023-12-102019https://ds.eaeu.edu.sd/handle/10.58971/743Definition A reference range is a set of values that includes upper and lower limits of a lab test based on a group of otherwise healthy people. The values in between those limits may depend on such factors as age, sex, and specimen type and can also be influenced by circumstantial situations such as fasting and exerciseother