Six kidney function tests, teach you how to understand the results!

From a professional perspective, kidney function tests are tests that study kidney function. The most commonly used tests are urine tests and chemical tests. Many hospitals also choose blood tests. And the people who should do this kind of test are the majority of men. After all, kidney function is equivalent to sexual function. If you want a more harmonious sex life, it is particularly important to pay attention to kidney health at all times. What are the items in kidney function tests?

1. Blood urea nitrogen (BUN)

Reference value: Normal condition: diacetyl-oxime colorimetric method 1.8～6.8mmol/L, urease-sodium colorimetric method 3.2～6.1mmol/L.

Clinical significance: Increased: acute and chronic nephritis, severe pyelonephritis, acute and chronic renal dysfunction caused by various reasons, heart failure, shock, massive internal bleeding, burns, dehydration, adrenal cortex hypofunction, prostate hypertrophy, chronic urinary tract obstruction, etc.

2. Serum creatinine (Scr)

Reference value: Normal condition: Adult male 79.6～132.6μmol/L, female 70.7～106.1μmol/L, children 26.5～62.0μmol/L, whole blood 88.4～159.1μmol/L.

Clinical significance: Increase: renal failure, uremia, heart failure, gigantism, acromegaly, salicylate treatment, etc. Decrease: progressive muscular atrophy, leukemia, anemia, etc.

3. Blood urea

Reference value: Normal condition: 3.2～7.0mmol/L.

Clinical significance: Increased levels indicate acute and chronic nephritis, severe pyelonephritis, acute and chronic renal dysfunction due to various reasons, heart failure, shock, burns, dehydration, massive internal bleeding, adrenal cortex hypofunction, prostate hypertrophy, chronic urinary tract obstruction, etc.

4. Serum uric acid

Reference value: Normal condition: Adult male 149～417μmol/L, female 89～357μmol/L; >60 years old male 250～476μmol/L, female 190～434μmol/L.

Clinical significance: Increased risk of gout, acute and chronic leukemia, multiple myeloma, pernicious anemia, renal failure, liver failure, polycythemia, pregnancy reactions, after strenuous activities and high-fat meals, etc.

5. Urine creatinine (Cr)

Reference value: Normal situation: infants 88-176μmmol·kg-1/d, children 44-352μmol·kg-1/d, adults 7-8mmol/d.

Clinical significance: Increase: hunger, fever, acute and chronic wasting diseases, after strenuous exercise, etc. Decrease: renal failure, muscular atrophy, anemia, leukemia, etc.

6. Urine protein

Reference value: Normal condition: Qualitative negative

Clinical significance: Normal people excrete about 40 to 80 mg of protein in urine every day, with an upper limit of no more than 150 mg, mainly albumin, followed by glycoproteins and glycopeptides. About 0.60 (60%) of these proteins come from plasma, and the rest come from secretions of the kidney, urinary tract, and prostate, and tissue decomposition products, including urease, hormones, antibodies and their degradation products. Physiological increase: postural proteinuria, exercise proteinuria, fever, emotional excitement, overcold or overheated climate, etc.