urea nitrogen

Urea nitrogen is a product of human protein catabolism, more than 90% is excreted through the kidneys, and the rest is excreted by the intestines and skin. When the kidneys have various lesions and the normal excretion function is destroyed, the blood urea nitrogen concentration is increased. The content of urea nitrogen in the blood is an important indicator of changes in renal function. 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: Found in severe liver diseases (such as hepatitis complicated by extensive liver necrosis, etc.). Normal value: Adult: 2.5-6.4mmol/L >60 years old: 2.9-7.5mmol/L Newborn: 1.4-4.3mmol/L Children: 1.8-6.4mmol/L Above normal: Found in acute glomerulonephritis, advanced kidney disease, renal failure, chronic pyelonephritis, toxic nephritis, benign prostatic hyperplasia, urinary calculi, urethral stricture, bladder tumor, malignant vomiting, pyloric obstruction, intestinal obstruction and long-term diarrhea. negative: Positive: Tips: Try to use fresh morning urine when doing this check. The urine that is randomly selected is preferably mid-stage urine. Menstrual women are not suitable for this examination. Normal value Adult 2.5 ~ 6.4mmol / L; >60 years old 2.9 ~ 7.5mmol / L; Newborns 1.4 ~ 4.3mmol / L; Children 1.8 ~ 6.4mmol / L. Clinical significance Reduced in severe liver disease (such as hepatitis complicated by extensive liver necrosis, etc.). Elevated in acute glomerulonephritis, advanced kidney disease, renal failure, chronic pyelonephritis, toxic nephritis, benign prostatic hyperplasia, urinary calculi, urethral stricture, bladder tumor, malignant vomiting, pyloric obstruction, intestinal obstruction and long-term diarrhea. High results may be diseases: kidney and ureteral stones, prostate hyperplasia precautions Note during inspection: Fresh morning urine should be used as much as possible during this examination. The urine that is randomly selected is preferably mid-stage urine. Not suitable for the crowd: menstrual women. Inspection process Inspection process: As with routine urine tests, use a clean, dry container with a disposable urine cup and urine test tube provided by the hospital. Take about 10 ml of urine and send it to the designated inspection window of the hospital, then use the isotope method and microscopy. Not suitable for the crowd Menstrual women. Adverse reactions and risks no.