Urine analyzer is an automated instrument for determining certain chemical components in urine. It is an important tool for automated urine inspection in medical laboratories. This type of instrument has the advantages of simple and fast operation. However, improper use of the urine analyzer and many intermediate links and influencing factors directly affect the accuracy of the automated analysis results, which will not only cause errors in the experimental results, and even delay the diagnosis. Therefore, the operator is required to understand the principles, performance, and precautions of the automated instruments. The knowledge of factors and influencing factors should be fully understood, and the automated instruments should be used correctly, so that the results obtained by the urine analyzer can be more reliable and accurate.
application
In the 1950s, someone used a single dry chemical test strip method to measure protein and glucose in urine. The color change of the test strip was observed with the naked eye and compared with the standard plate, and the corresponding value was obtained. In the 1980s, due to the high development and widespread use of computer technology, automated urine analyzers also developed rapidly, gradually developing from semi-automation to full automation.
Urine analyzers are often divided into two categories according to test items:
① 8-11 screening combined urine test strips mainly used for newly diagnosed patients and health examinations. The 8 test items include protein, glucose, PH, ketone bodies, bilirubin, urobilinogen, red blood cells (occult blood) and nitrite; 9 test items include urine white blood cell inspection in addition to the above 8 tests. Based on 9 items of 10 urine analyzer testing items, urine density inspection was added. 11 test items added vitamin C test.
②It is mainly used to observe the curative effect of confirmed diseases. For example, combined test strips of PH, protein, and occult blood (red blood cells) can be used for kidney disease; combined test strips of PH, sugar and ketone bodies for diabetes; combined test strips of bilirubin and urobilinogen for patients with liver disease Try it.
