Ammonia Test

Ammonia is a waste product that is produced by the body as a result of the breakdown of proteins. The ammonia test measures the level of ammonia in the blood and is used to assess liver function and to detect certain medical conditions such as liver disease, kidney disease, and metabolic disorders.

Pre-test preparation: No special preparation is needed for the ammonia test.

Testing method: A blood sample is taken from a patient and sent to the laboratory for analysis. The sample is then analyzed to determine the level of ammonia in the blood.

Common symptoms for prescribing this test: The ammonia test is usually ordered when a patient has symptoms of liver or kidney disease such as confusion, disorientation, or mental changes. The test is also used as a follow-up test to monitor treatment of liver or kidney disease, or to detect certain metabolic disorders such as urea cycle disorders.

Diagnosis: Elevated ammonia levels can indicate liver or kidney disease, or metabolic disorders, but the diagnosis of these conditions is typically based on a combination of clinical, laboratory, and imaging findings.

Reference range: The reference range for ammonia levels can vary depending on the lab, but generally, it is considered normal for adult to have ammonia levels of 15-45 µmol/L.

Normal values: The normal range for ammonia levels can vary depending on the lab, but typically falls between 15-45 µmol/L in adults.

It is important to note that an elevated ammonia level does not confirm a diagnosis of liver or kidney disease, or metabolic disorders, and should be interpreted along with clinical presentation and other laboratory test results. Additionally, other factors such as age, sex, and certain medications can affect ammonia levels, so the results should be considered in the context of the clinical history and other tests results.