How to check for kidney deficiency

Kidney deficiency is a disease that can be detected through a full-body examination. Therefore, if patients feel that their bodies have any symptoms suspected of kidney deficiency, they should undergo relevant examinations. Only in this way can they know the cause. Usually, a series of renal function tests are required. This is also the most intuitive way to know whether people have kidney deficiency in their bodies.

Blood urea nitrogen

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

Clinical significance:

① Aggravation of the condition

Acute and chronic nephritis, severe pyelonephritis, acute and chronic renal dysfunction caused by various reasons.

②Symptoms

Heart failure, shock, burns, dehydration, massive internal bleeding, adrenal insufficiency, prostate hypertrophy, chronic urinary tract obstruction, etc.

Serum creatinine

Reference value: Normal situation: 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. Reduce: progressive muscular atrophy, leukemia, anemia, etc.

Blood urea

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

Clinical significance:

① Aggravation of the condition

Elevated levels indicate acute and chronic nephritis, severe pyelonephritis, and acute and chronic renal dysfunction caused by various reasons.

②Symptoms

Heart failure, shock, burns, dehydration, massive internal bleeding, adrenocortical insufficiency, prostate hypertrophy, chronic urinary tract obstruction, etc.

Serum uric acid

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

Clinical significance: Increase: gout, acute and chronic leukemia, multiple myeloma, pernicious anemia, renal failure, liver failure, polycythemia, pregnancy reaction, strenuous activity and after high-fat meal, etc.

Urine creatinine

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

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

Reference value: Normal: Qualitatively 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 kidneys, urinary tract, and prostate, and tissue decomposition products, including urease, hormones, antibodies and their degradation products. Physiological increase: postural proteinuria, exercise-induced proteinuria, fever, emotional excitement, excessively cold or hot climate, etc.