26 minutes ago
65 [CLINICAL STAGING OF CKD] How does your doctor know how far along you are in your CKD journey by just a quick glance at your blood test reports, even before checking your kidneys with image scans or a biopsy?
It's all about finding out how efficiently your kidneys have been filtering the blood that reaches them. This is technically called the "Glomerular Filtration Rate" or more conveniently, the GFR
Normally, kidneys filter between 110-125 millilitres of blood every minute (mL/min). In other words, healthy kidneys have a GFR of 110-125 mL/min
In Chronic Kidney Disease, as most of us here know, there is gradual worsening of kidney function. This basically translates as a reduction of GFR over time
So where am I leading you with all this information? See, renal physiologists have toiled really hard in the past few decades to help us come up with precise mathematical formulae to estimate the GFR of an individual.These formulae simply require the patient to get their blood (serum) levels of a biomolecule called Creatinine measured. (Creatinine is a waste product eliminated exclusively by our kidneys via urine and is a good estimate for kidney function.)
Once labs have the Serum creatinine value with them, they apply it to the GFR formula along with the patient's weight, height, age & ethnicity to obtain an estimate of the patient's GFR at that point of time
Based on the Estimated GFR calculated above, your doctor is able to get an idea about the extent of progress of your Kidney Disease ( ckd).
[This classification solely applies to Chronic Kidney Disease and not on any of the other conditions affecting the kidney]
The Carousel Post today is a comprehensive Guide on CKD staging for your reference. Swipe through the images if you wish to learn to "get into the mind of your Nephrologist" on this crucial aspect of diagnosing & monitoring CKD
Hap-"pee" learning! ☺