Urine erythrocyte phase

The urinary red blood cell phase is an auxiliary test for checking the urine for normality. Urine red blood cell phase examination is a method for examining the morphology of red blood cells in urine by phase microscopy. The clinical significance is to identify the source of hematuria based on the morphology of red blood cells. It is speculated that hematuria is glomerular or non-glomerular. It is generally believed that normal people have about 4% of red blood cells in the urine, and the number of red blood cells (0.5 to 5.0) × 1012 / L, mostly deformed red blood cells. If the abnormal red blood cells (the size, morphology, abnormal hemoglobin content) accounted for more than 75% in the urine, and the number of red blood cells ≥ 8.0 × 1012 / L, can be diagnosed as glomerular hematuria. Through this examination, the corresponding symptoms can be judged. Basic Information Specialist classification: urinary examination classification: urine / kidney function test Applicable gender: whether men and women apply fasting: fasting Tips: Do not eat after 9:00 pm the day before the test. Drink water. Check the morning after getting up and do not eat or drink water, which is convenient for inspection. Female patients should not take urine for examination during menstruation. Normal value A small amount of red blood cells appearing in the urine of normal people and erythrocytes in the urine of patients with glomerular disease without renal tubulointerstitial damage are all abnormal red blood cells. This is due to the osmotic gradient in the normal renal tubules, especially the hypotonic concentration of the tubule fluid in the thick segment of the external medulla, which causes fission deformation of the red blood cells. Clinical significance Abnormal results: It is generally believed that normal people have red blood cells in the urine about 4%, of which the number of red blood cells (0.5 ~ 5.0) × 1012 / L [ie 500 ~ 5000 / ml], mostly normal red blood cells. If the abnormal red blood cells (the size, morphology, abnormal hemoglobin content) are more than 75% in the urine, and the number of red blood cells is ≥8000/ml, it can be diagnosed as glomerular hematuria. Some glomerular diseases may have mixed or uniform hematuria. This is due to the presence of tubulointerstitial lesions. The normal osmotic gradient cannot be formed in the renal tubules, and the red blood cells from the kidney unit will not be deformed. When there is a wide range of tubulointerstitial damage, the red blood cell morphology can be uniform. People who need to be examined: patients with kidney disease. Precautions Taboo before the test: Do not eat after 9:00 pm the day before the test. Drink water. Check the morning after getting up and do not eat or drink water, which is convenient for inspection. Requirements for inspection: 1. Pre-select the wide-mouth glass bottle that can hold more than 20 ml when leaving the urine sample. It must be cleaned before use. 2, it is best to leave the first urine specimen for inspection in the morning. When taking urine, it is best to take some urine before taking it. 3, female patients in the menstrual period should generally not take urine for inspection. Inspection process The doctor collects the patient's urine, and examines the urine separation by the laboratory. The shape and size of the red blood cells in the urine are measured. The light should be moderate when observing, patiently find the visual field and observe the red blood cells and record the results. Not suitable for the crowd Not suitable for people: Patients with severe kidney disease have been examined, and healthy people do not need to be examined. Adverse reactions and risks No obvious complications and harms.