General medical words
What Does Within Normal Limits (WNL) Mean on a Report?
Within Normal Limits · say it: with-IN NOR-mul LIM-itsAlso written: WNL, within normal range, normal, no abnormality detected, NAD
Short answer
Within normal limits (WNL) means a result or exam finding falls inside the range expected for most healthy people.
What it means
WNL is a common shorthand on lab reports, exam notes and test summaries. It means the measured value, or what the clinician saw, is within the usual expected band.
For lab tests, the limits are the reference range printed by that lab. For physical exams or scans, it means nothing outside the ordinary was noted for that part of the check.
It is reassuring about that specific test or exam, but it only covers what was checked at that time.
Where you may see it
- Lab result summaries
- Physical exam notes
- ECG and other test reports
📄 How it looks on a report
CBC: within normal limits.
🙅 What it does not mean
- It does not mean every possible condition has been ruled out; it only covers what was tested.
- It is not a promise that results will stay the same in future.
- It does not mean your symptoms are imagined; if you still feel unwell, it is fine to discuss this.
🎯 Check yourself
Which of these is the right meaning of “Within Normal Limits”?
🗒️ Questions to ask your doctor
🧾 Reports where you will see “Within Normal Limits”
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💊 Medicines whose labels mention “Within Normal Limits”
Plain-English explanations of each medicine, from its official FDA label.
- Alendronate
a bisphosphonate, a medicine that slows the breakdown of bone by blocking cells called osteoclasts
- Allopurinol
a xanthine oxidase inhibitor, a prescription medicine that acts on uric acid
- Amlodipine
a calcium channel blocker, a type of medicine that relaxes blood vessels
- Amoxicillin and Clavulanate Potassium
A penicillin-class antibacterial combined with a beta-lactamase inhibitor, as the label describes it
- Apixaban
A factor Xa inhibitor, a blood thinner medicine (anticoagulant)
- Artemether and Lumefantrine
an antimalarial medicine, which is a fixed combination of two blood-stage antimalarial ingredients (artemether, an artemisinin derivative, and lumefantrine)
- Atenolol
a beta-blocker (beta-adrenergic blocker). The label describes it as a beta 1-selective, or cardioselective, blocking agent.
- Azithromycin
a macrolide antibacterial (antibiotic) medicine
- Bisoprolol Fumarate
a beta-blocker, which the label describes as a synthetic, beta 1-selective (cardioselective) adrenoceptor blocking agent
- Carvedilol
A beta-blocker. The FDA lists it as both an alpha-adrenergic blocker and a beta-adrenergic blocker.
🔗 Read more from trusted sources
- “Within Normal Limits” on MedlinePlus ↗
US National Library of Medicine
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General information about a medical word, not advice about your own results. Ask the clinician who ordered the test what it means for you.