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The normal range of GFR, adjusted for body surface area, is 100–130 average 125 (mL/min)/(1.73 m 2) in men and 90–120 (mL/min)/(1.73 m 2) in women younger than the age of 40. In children, GFR measured by inulin clearance is 110 (mL/min)/(1.73 m 2 ) until 2 years of age in both sexes, and then it progressively decreases.
To assess the adequacy of a complete collection, one always calculates the amount of creatinine excreted over a 24-hour period. This amount varies with muscle mass and is higher in young people/old, and in men/women. An unexpectedly low or high 24-hour creatinine excretion rate voids the test.
Diabetic nephropathy, also known as diabetic kidney disease, [5] is the chronic loss of kidney function occurring in those with diabetes mellitus.Diabetic nephropathy is the leading causes of chronic kidney disease (CKD) and end-stage renal disease (ESRD) globally.
[30] Serum creatinine - Also measured using a BMP or CMP, creatinine is one of the most important indicators of current kidney function and is used to calculate the glomerular filtration rate (GFR). An elevated creatinine level is considered abnormal and may indicate decreased kidney function. [31]
In the United States, acute failure affects about 3 per 1,000 people a year. [8] Chronic failure affects about 1 in 1,000 people with 3 per 10,000 people newly developing the condition each year. [1] [10] In Canada, the lifetime risk of kidney failure or end-stage renal disease (ESRD) was estimated to be 2.66% for men and 1.76% for women. [11]
Kidney damage is defined signs of damage seen in blood, urine, or imaging studies which includes lab albumin/creatinine ratio (ACR) ≥ 30. [59] All people with a GFR <60 mL/min/1.73 m 2 for 3 months are defined as having chronic kidney disease. [59]
This interval was 0.55 - 1.18 for women and 0.60 - 1.11 for men. Non-Hispanic blacks and Mexican Americans had lower normal cystatin C levels. [ 85 ] Other studies have found that in patients with an impaired renal function, women have lower and blacks have higher cystatin C levels for the same GFR. [ 89 ]
Many people, however, have no symptoms during the first few years and are diagnosed on routine testing. [13] A small number of people with type 2 diabetes can develop a hyperosmolar hyperglycemic state (a condition of very high blood sugar associated with a decreased level of consciousness and low blood pressure). [13]