Begin with the purpose of the test
A positive result means a relevant change was found. Its meaning depends on the test: it might inform a diagnosis, carrier status, disease risk or the need for further testing. A predictive result generally cannot establish an exact future risk or the eventual course of a condition. MedlinePlus explains these distinctions.
Before interpreting a headline, find the report’s intended use and the specific finding it describes. A health-risk estimate and a diagnostic conclusion answer different questions.
Negative and uncertain are different outcomes
A negative result means the test did not identify the relevant change within its scope. Some genetic changes may be missed. An uncertain result means the available information does not support a clear conclusion; it cannot confirm or rule out a diagnosis. Read the National Library of Medicine’s interpretation guide.
Absence of information is not reassurance.
When a report says a result was not assessed, ask what prevented assessment. Do not translate that wording into “low risk” or “clear.”
Bring the result back to the person
A test may not tell you whether symptoms will occur, how severe they could be or how a condition might progress. A genetics professional can explain the benefits and limits of the particular test in your situation. MedlinePlus describes these limitations.
Useful questions for the professional reviewing a report include:
- What was measured, and what could this test miss?
- Does this finding answer the question that prompted the test?
- Is a different or confirmatory test appropriate?
- How does my medical and family history affect the interpretation?
- What follow-up, if any, is appropriate?
Read the sources
MedlinePlus: What genetic test results meanMedlinePlus: Risks and limitations of genetic testingPublished 8 September 2026. Written by the Atlagene team.