Reference ranges for blood tests

A reference range is a set of values used by a health professional to interpret a set of medical test results. The range is usually defined as the set of values 95% of the normal population falls within.

The reference range will vary, depending on the age, sex and race of a population, and even the instruments the laboratory uses to perform the tests. Furthermore, by definition, 5% of the normal population will fall outside the reference range. The values given below therefore are given as examples only and should not be used to interpret individual test results. Factors other than medical conditions can affect laboratory values, such as male or female sex, diet, use of drugs (prescribed, over-the-counter and herbal remedies), and stress, as well as other more exotic factors like altitude.

By mass
Reference ranges for some blood tests, sorted by mass.

By molarity
Reference ranges for some blood tests, sorted by molarity.

Clinical biochemistry

 * Items marked with a ** are part of "CHEM-7" and CHEM-20
 * Items marked with a * are part of "CHEM-20", but not CHEM-7

Electrolytes and Metabolites
Electrolytes and Metabolites: