Blood ammonia levels are usually less than 50 micromoles per liter (micromol /L), but this can vary depending on age. An increase to only 100 micromol /L can lead to changes in …

Dec 2, 2025 · High ammonia levels can be dangerous and may cause confusion, sleepiness, and difficulty concentrating. Liver disease, especially cirrhosis, is a common cause of high …

May 28, 2025 · Higher than normal blood ammonia levels are called hyperammonemia. Acceptable levels depend on age and sex but range from about 42 µg/dL in infants to 200 …

An ammonia levels test measures the amount of ammonia (NH3) in your blood. High ammonia levels can cause serious brain damage and coma. Learn more.

Learn about blood ammonia levels, their role in liver function, causes of high ammonia, symptoms, and how a blood ammonia test can help diagnose health conditions.

Aug 9, 2025 · What Is an Ammonia Test? It’s a simple blood test that lets your doctor measure how much ammonia is in your blood. Bacteria in your gut and in your cells create ammonia …

Nov 17, 2025 · Ammonia is a simple, nitrogen-containing compound produced constantly as a byproduct of metabolism, primarily during the breakdown of proteins and amino acids. While a …

Dec 2, 2024 · Physicians often check the serum ammonia when evaluating a patient who presents with an altered mental status of unknown etiology. The results are typically available within a …

Apr 25, 2025 · Normal ammonia levels in the blood range from 15 to 45 µmol/L, and levels above this range indicate hyperammonemia. The condition can be acute or chronic, depending on …

Aug 24, 2022 · Hyperammonemia is a metabolic condition that happens when you have elevated levels of ammonia in your blood. Having high levels of ammonia in your blood is toxic to your …