Ammonia in blood plasma (Ammonium, plasma)

Rules of preparation for the study Blood collection is preferably carried out in the morning on an empty stomach, after an 8-14-hour period of night fasting (you can drink water), it is permissible in the daytime 4 hours after a light meal. When monitoring the dynamics of the indicator, it is recommended to donate blood for examination at the same time of day.

In which cases the "Ammonia in blood plasma" analysis is performed: suspected hyperammonemia; diagnosis of an enzymatic defect in the urea cycle; liver diseases: acute and chronic liver failure, portal hypertension, cirrhosis of the liver; hepatic encephalopathy; hematological disorders: multiple myeloma and acute leukemia; infections caused by urease-producing microorganisms such as Proteus mirabilis, Escherichia coli and Klebsiella spp.; monitoring of the condition when taking valproic acid, carbamazepine, salicylates and sulfadiazine.

The interpretation of the research results contains information for the attending physician and is not a diagnosis. The information in this section cannot be used for self-diagnosis and self-medication. An accurate diagnosis is made by a doctor using both the results of this examination and the necessary information from other sources: anamnesis, results of other examinations, etc. Units of measurement: mmol/l. Reference values Paul Age Ammonia, mmol/l Both 0-10 days 100-200 10 days - 2 years 40-80 more than 2 years < 72 Interpretation of the results of the study "Ammonia in blood plasma" The results of the study should always be considered in conjunction with the patient's medical history and the results of all other clinical trials. The concentration of ammonia in plasma does not correlate with the degree of hepatic encephalopathy. An increased concentration of ammonia can also be detected with increased dietary protein intake. The concentration of ammonia in plasma in newborns under the age of one week is increased compared to adults.