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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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Does Finger Stick Test For Kidney Function Yield Accurate Results?

I had a test for my kidney function that was done from a finger stick. From the finger stick the results showed a creatinine within normal limits and a GFR that was low (57). Can the test be accurate with only a finger stick? My physician always does the four different vials of blood.
Wed, 28 Jun 2017
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Urologist 's  Response
Hello and welcome to HCM.
As an Urologist, i can understand your anxiety.
Tests for kidney function are: urea,creatinine,and GFR estimation.
This is done in a standard lab,with a blood sample taken from a vein.
A finger stick report isn't accepted by any Urologist, or in any hospital.
It's highly inaccurate and unreliable.
Hope your doubts are cleared.
Dr.Matthew J. Mangat.
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Does Finger Stick Test For Kidney Function Yield Accurate Results?

Hello and welcome to HCM. As an Urologist, i can understand your anxiety. Tests for kidney function are: urea,creatinine,and GFR estimation. This is done in a standard lab,with a blood sample taken from a vein. A finger stick report isn t accepted by any Urologist, or in any hospital. It s highly inaccurate and unreliable. Hope your doubts are cleared. Dr.Matthew J. Mangat.