How is kidney function calculated?

For day to day use, excretory kidney function is measured by measuring the concentration of a substance called creatinine in the blood. This is a product of day-to-day muscle breakdown, and the amount released into the blood varies depending on race, age and body build.

How is CKD staging calculated?

Doctors determine the stage of kidney disease using the glomerular filtration rate (GFR), a math formula using a person’s age, gender, and their serum creatinine level (identified through a blood test). Creatinine, a waste product that comes from muscle activity, is a key indicator of kidney function.

How do you measure kidney efficiency?

Kidney function tests are urine or blood tests that evaluate how well your kidneys are working. Most of these tests measure glomerular filtration rate (GFR). GFR assesses how efficiently your kidneys clear waste from your system.

What are three risk factors for kidney disease?

Factors that can increase your risk of chronic kidney disease include:

  • Diabetes.
  • High blood pressure.
  • Heart (cardiovascular) disease.
  • Smoking.
  • Obesity.
  • Being Black, Native American or Asian American.
  • Family history of kidney disease.
  • Abnormal kidney structure.

How is GRF calculated?

Your GFR tells you how much kidney function you have. It is defined as the sum of the filtration rates of all your functioning nephrons (filtering units making up the kidneys). An estimate of the normal value for your GFR can be obtained by using the equation: GFR = 140 – [your age].

What is CKD EPI formula?

Expressed as a single equation: eGFRcr = 142 x min(Scr/κ, 1)α x max(Scr/κ, 1)-1.200 x 0.9938Age x 1.012 [if female] where: Scr = serum creatinine in mg/dL.

What is GFR calculation CKD EPI?

This CKD-EPI equation calculator should be used when Scr is reported in mg/dL. This equation is recommended when eGFR values above 60 mL/min/1.73 m² are desired. GFR = 141 × min(Scr/κ, 1)α × max(Scr/κ, 1)-1.209 × 0.993Age × 1.018 [if female] × 1.159 [if African American]

How is CR clearance calculated?

Creatinine Clearance Calculator Calculation information: This formula is applicable only if the serum creatinine is stable. Est. Creatinine Clearance = [[140 – age(yr)]*weight(kg)]/[72*serum Cr(mg/dL)] (multiply by 0.85 for women).

What is CKD risk map?

CKD Risk Map CLASSIFY patients with chronic kidney disease (CKD) based on Cause (C), GFR (G), and Albuminuria (A). CONSULT the “CKD Risk Map” to help evaluate patients by GFR and albuminuria categories. • Colors: Represent the risk for progression, morbidity, and mortality from best to worst.