De Ritis Ratio (AST/ALT)
The De Ritis ratio compares AST and ALT transaminases to differentiate muscular from hepatic origins of enzyme fluctuations.
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.
0.7 – 1.4 ratio
0.7 – 1.4 ratio
0.7 – 1.4 ratio
What does a low result mean?
A ratio below 1.0 alongside mild enzyme shifts is typical of benign, reversible metabolic liver adaptations.
What does a high result mean?
A ratio above 1.5 is very commonly seen after strenuous muscle exertion (muscles releasing AST) or muscle soreness.
Questions ready for your doctor
Bring these questions to your next consultation to discuss with your healthcare practitioner:
- Could recent gym training or muscle soreness account for AST predominance?
- Does this ratio confirm a benign muscular source rather than liver involvement?
- Is a follow-up draw after a few days of restful recovery adequate?
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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.