What is ammonia?

Ammonia is a toxic constituent, transformed into urea by the liver. When suspected to increase, it should be measured in emergencies.

Determination of ammonia in blood and urine

Ammonia is a molecule containing nitrogen and hydrogen (NH3) atoms. It is an important component in the balance of positive and negative charges of the body for maintaining pH. In water, ammonia becomes the ammonia ion NH4 +, a toxic ion transformed into urea by the liver.

How does the collection take place?

When an increase in ammonia is suspected, it is urgent to take a blood or urine sample to measure its values ​​because it is very toxic and may explain liver failure.

Normal values ​​of ammonia in blood and urine

Mg x 58.7 = μmol / L

Pathological variations of ammonia

Blood samples: 14 - 38 μmol / L: 0.25 - 0.65 mg / L Arterial blood: 15 - 50 μmol / L, that is to say: 0.27 - 0.85 mg / L Urine 24 hours: 30 - 60 μmol / That is: 0.50 - 1.00 g / 24 h