Urease test

Urease test Because Helicobacter pylori is the only bacteria in the human stomach that can produce a large amount of uremic enzymes, Helicobacter pylori infection can be diagnosed by detecting uremic enzymes. Uremic enzymes break down the urinary toxicities in the stomach to produce ammonia and carbon dioxide, which lowers the urea concentration and increases the ammonia concentration. A qualitative test used to determine urease in the biopsy of the stomach (usually the gastric antrum, corpus). It is an important diagnostic indicator for the diagnosis of Helicobacter pylori infection in the digestive tract. It needs to be taken after gastric mucosa tissue under gastroscope. It is the first choice for invasive detection of Helicobacter pylori. It has the advantages of simple operation and low cost. Basic Information Specialist classification: Digestive examination classification: biochemical examination Applicable gender: whether men and women apply fasting: fasting Analysis results: Below normal: Normal value: no Above normal: negative: The bacterial culture was pink and negative. Positive: normal. Tips: Pregnant women, lactating women should avoid this check. Hp-sensitive drugs have been used within one month, and gastrointestinal bleeding has occurred within five days, and the sensitivity of the test is lowered. Strict control of the impact test factors such as temperature maintained at about 37 degrees, pH of 7, and so on. Normal value The result was positive. Clinical significance Abnormal results: The bacterial culture was pink and negative. Need to check the crowd: peptic ulcer, chronic gastritis patients. Precautions Taboo before inspection: None. Contraindications during inspection: Strict control affects test factors such as temperature maintained at 37 degrees, pH 7 and so on. Inspection process The cultures of the test bacteria were picked up for 18~24h in a large amount in the liquid medium tube, shaken, cultured at 36±1°C for 10, 60 and 120min, and the results were observed. Or apply and puncture inoculated on the agar slants, do not reach the bottom, leaving the bottom for discoloration control. The results were observed at 2, 4 and 24 hours, respectively. If the negative was continued, the culture should be continued for 4 days for final determination and become pink positive. Not suitable for the crowd Not suitable for checking the crowd: 1. Pregnant women and lactating women should avoid this examination. 2, Hp sensitive drugs used within one month, gastrointestinal bleeding within five days, the sensitivity of the examination will be reduced. Adverse reactions and risks No related complications or hazards.