Why should I use the range printed on my own report?

Reference ranges can differ by laboratory, method, units, and the group used to establish the range. The range on the report is the relevant reading aid; it is not a universal health target.

Can a value inside a reference range answer every health question?

No. A result is only one part of a wider clinical picture. Peptide Index does not interpret individual results or determine what any value means for a visitor.

Can I compare a result with a range found online?

This reference does not provide generic comparison ranges. MedlinePlus advises using the range printed on the report because methods, units, and laboratory ranges can differ.

Educational reference · non-diagnostic

Understanding report-specific reference ranges

A laboratory result is easier to read when its report-specific range, unit, test label, date, and laboratory are kept together. This page explains those labels without deciding what any result means for an individual.

Original reading aid

Read the labels as a set

A report’s printed range is a context label, not an instruction. MedlinePlus notes that laboratories may use different methods, units, and reference ranges; a number should not be detached from the report that supplied it.

Reading aid only. This page does not tell a visitor whether a result is normal, abnormal, good, bad, or actionable.

Illustrative report context map

Laboratory name: Identifies the organization that issued the report and the report-specific context.
Test or method label: Names the measurement or testing approach as the report presents it.
Unit: Shows how the reported number is expressed. A number without its unit is incomplete.
Reference range: Gives the laboratory’s printed comparison interval for that report, not a universal target.
Collection date: Separates the specimen event from the time the report was viewed or discussed.

A safer discussion starting point

Bring the complete report, not a detached number

Which range and unit are printed on this report?

Does the report identify a particular method, specimen, or preparation instruction?

What context does the ordering clinician consider when discussing this report?

Does the report include a stated follow-up instruction?