Urine red blood cells (RBC, BLO)

Positive urine occult blood refers to hemoglobin and myoglobin in the urine, not red blood cells; and urine contains more red blood cells, called hematuria. Due to the difference in the amount of bleeding, it can be light red to mist, lightly washed meat or blood, and even mixed with clots. Every liter of urine contains more than 1ml of blood, and a reddish color appears. The natural number is gross hematuria. Microscopic hematuria means that the appearance of urine is not obvious, and more than the normal number of red blood cells can be seen by microscopic examination after centrifugation. In general, microscopic hematuria can be determined when more than 3 red blood cells are seen per high-power field. Basic Information Specialist classification: urinary examination classification: urine / kidney function test Applicable gender: whether men and women apply fasting: not fasting Analysis results: Below normal: Normal value: no Above normal: negative: normal. Positive: The most common cause of hematuria is urinary system diseases, which are more common in glomerular diseases, stones, infections and tumors. Tips: Fresh morning urine should be used as much as possible. The urine that is randomly selected is preferably mid-stage urine. Women should avoid menstruation when taking urine specimens and should prevent vaginal secretions from mixing into the urine. Normal value Negative, or occasional; recorded as (-) or (±). (Note the specific reference value depends on each laboratory.) Clinical significance 1. This test is used to assist in the diagnosis of urinary system diseases, hemorrhagic diseases, collagen and allergic diseases, cardiovascular diseases, diseases of adjacent organs of the urinary system. 2, urine occult blood test positive more common in (1) blood transfusion, blood transfusion, faba bean disease, severe burns or infections, falciparum malaria and certain drugs or poisons caused by inflammation; (2) various hemolytic anemia episodes, paroxysmal Sleepy hemoglobinuria and allergic hemoglobinuria; (3) chronic prostatitis; (4) specimens placed too long, red blood cells in the urine. There is no need to worry about a small amount of occult blood in the urine. If you have a long-term appearance, you need to find the cause. 3, the most common cause of hematuria is urinary system diseases, which are more common with glomerular diseases, stones, infections and tumors. Gross hematuria is mainly seen in urinary system diseases caused by various causes, such as kidney tuberculosis, kidney tumors, kidney or urinary calculi, and urinary tract infections caused by certain strains. The appearance of washed meat is common in acute glomerulonephritis. Hematuria can also be caused by bleeding disorders, seen in hemophilia and idiopathic thrombocytopenic purpura. When hematuria occurs, it is necessary to carry out morphology and counting, and analyze the source of hematuria, which is from the glomerulus or the glomerulus: (1) Denatured polymorphic red blood cells are mostly glomerular discharge; normal uniform red blood cells are mostly red blood cells from the renal pelvis, ureter, bladder and other rupture of blood vessels other than glomeruli. (2) The appearance of red blood cell casts in the urine indicates that red blood cells are from the kidneys. (3) Three cup test with urine: If hematuria appears in the first cup, it often indicates anterior urethral lesion, which is caused by foreign body, inflammation, tumor, polyp, meat, stone and stenosis. If it is a third cup of hematuria, it often indicates bladder neck, bladder triangle, posterior urethra or prostate lesions. Such as acute inflammation of the posterior urethra, prostatitis, bladder cancer with long pedicles into the posterior urethra, bladder neck polyps and cancer, prostate hypertrophy and cancer. If all three cups are hematuria, it often indicates urinary tract bleeding above the bladder neck, which can be seen in primary or secondary glomerular disease, inflammation above the bladder neck, stones, tumors, and polycystic kidney and basal renal veins. High pressure and so on. Positive results may be diseases: acute glomerulonephritis precautions Note when checking: 1. Try to use fresh morning urine when doing this test. The urine that is randomly selected is preferably mid-stage urine. 2, women should avoid the menstrual period when taking urine specimens, should prevent vaginal secretions mixed into the urine, middle-stage urine is appropriate. 3. Use a clean and dry container for urine. It is better to use disposable urine cups and urine tubes provided by the hospital. The amount of urine used for routine testing should be about 10 ml and sent for inspection as soon as possible. Inspection process Inspection method: urine test. Not suitable for the crowd Menstrual women. Adverse reactions and risks no.

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