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Quick Answer. A personâs normal ammonia level typically ranges between 15 to 45 micrograms per deciliter. To determine these levels, an ammonia blood test is performed.
The lower limit of the reference range is 10-20 Î¼mol/L. The upper limit of the reference range is 35-65 Î¼mol/L. Next. Conditions Associated with âhighâ ammonia levels include the following: