Only adult values are given in this handbook. Please ask the laboratory for interpretation of results in children.
Many tests are subject to interference.
This may be biological, where the offending substance alters the true concentration within the body, or analytical, where the method is not specific. The Comment may mention some of the more common interferences. More than 25,000 interferences have been reported and databases are held in the Department. Tests are listed alphabetically by name or common abbreviation, ignoring numerical or Greek alphabet prefixes. Please let us know of any errors or ambiguities in the handbook.