Urine bacteriological examination

Urine bacterial tests are tests for urinary tract infections, which are caused by direct attack by bacteria (very few can be caused by fungi, protozoa, viruses). Urine bacteriological examination is decisive for the diagnosis and treatment of urinary tract infections. Basic Information Specialist classification: urinary examination classification: urine / kidney function test Applicable gender: whether men and women apply fasting: not fasting Tips: Diabetes, urinary calculi, thyroid hypertrophy, etc. can easily lead to urinary tract infections, should be careful and receive appropriate treatment. Do not urinate, especially pregnant women. After the woman has finished the toilet, the toilet paper should be rubbed back to the anus by the perineum and should not be wiped back and forth. Normal value In the morning, the first fresh mid-stage urine sediment smear, the number of bacteria per high-power microscope field <10 or no bacteria, usually the middle urine culture is negative or the colony count is <103/mL; the number of bacteria reaches 15-20, the middle urine culture The number of colonies was >105/mL. <104/mL is considered meaningless or polluted, and the number of colonies >105/mL can be used as a basis for diagnosis of urinary tract infection, when the number of colonies is 104-105/mL is suspicious. Clinical significance When abnormal bacteria are detected in the same bacteria, Gram-negative bacilli ≥105/ml colony number (CFU) can be considered as pathogen. Some people think that the number of cultured bacteria is 105/ml, the accuracy rate is 80%, and the same is detected twice. Bacteria above 105/ml, accuracy rate is 91%, three times is 95%; 104/ml ~ 105 / ml is suspicious, should be repeated inspection; <104 / ml is considered as pollution; Gram-positive cocci ≥ 104 / Ml can be regarded as a pathogen. Elderly people, children and patients with chronic urinary tract infections who need to be examined. Precautions Inappropriate people: Diabetes, urinary calculi, thyroid hypertrophy, etc. can easily lead to urinary tract infections, should be careful and receive appropriate treatment. Taboo before the test: Do not urinate, especially pregnant women. After the woman has finished the toilet, the toilet paper should be rubbed back to the anus by the perineum and should not be wiped back and forth. Requirements for inspection: The container must be clean to prevent contamination when collecting specimens. If there are special requirements, the doctor will explain. Inspection process According to the doctor's request to extract urine, if you feel unwell, you should consult your doctor promptly. Not suitable for the crowd Menstrual women. Adverse reactions and risks no.

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