Alpha-1 Antitrypsin (AAT)
Alpha-1 antitrypsin is a protective protein made by the liver safeguarding lung and liver tissues against enzymatic damage.
Test your personal value
Enter the number from your lab report to instantly see how it compares to reference ranges.
Physiological Reference Ranges
The ranges below represent standard adult physiological values. Your laboratory's printed reference range always takes precedence.
0.9 – 2 g/L
0.9 – 2 g/L
0.9 – 2 g/L
What does a low result mean?
A reading below reference ranges suggests evaluating protein phenotyping to characterize natural protective levels.
What does a high result mean?
A slightly elevated level is common and reassuring during minor inflammation or with estrogen contraception.
Questions ready for your doctor
Bring these questions to your next consultation to discuss with your healthcare practitioner:
- Does this confirm adequate protective capacity for my lungs and liver?
- Could minor recent inflammation have prompted this healthy rise?
- Is phenotyping recommended?
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Important information — Medical notice
ScanMyLab is for informational purposes only. It does not provide a diagnosis and never replaces the advice of your doctor or laboratory.