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DrRussMD
DrRussMD, Board Certified Physician
Category: Medical
Satisfied Customers: 64011
Experience:  Internal Medicine--practice all of internal medicine, all ages, family, health, prevention, complementary medicine, etc.
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I have a creatinine meter and I'm wondering about it's

Customer Question

Hi, I have a creatinine meter and I'm wondering about it's accuracy. My lab results were creatinine 79 umol/l and my home test was 74. Now my meter reads from 101 to 110. Can creatinine vary that much?
Submitted: 1 year ago.
Category: Medical
Expert:  Internist replied 1 year ago.

hi there,

I am online and will be happy to answer your questions.

normal creatinine values are 55-106 micromol per litre or 0.6 to 1.3 milligrammes per desi litre.

if you have diabetes / high blood pressure or any kidney disease, i would suggest to check your creatinine clearance from blood sample.

if you are overall healthy, you can keep monitoring it with meter and consult doctor if it goes beyond 110-115.

please let me know if i can provide further clarifications. thanks

Expert:  DrRussMD replied 1 year ago.

Hello

I have a different answer.

Any serum creatinine over the upper limit of normal can represent 50% or more loss of renal function.

You should not rely on any home test; nor are urine tests accurate.

If you have serum readings that have gone up, you need to have a lab test.

In fact, in many labs, over 1.1 is high, and this represents a problem

Early damage can be detected with a microalbumin test of the urine in many cases.

I see no reason to base anything on a spot urine test.

And, to re iterate, ANY serum creatinine high on a lab test over high normal

1.1 in most cases, is a problem.

I am a double board certified US doctor.

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OK, so that is an initial answer….

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