Has anybody gotten a cystatin C blood take a look at for renal perform? It is one of many prime predictors of chronological age

earlier than and after rapamycin?

I personally did after, and it lined up with my common egfr utilizing creatinine
Its only a higher technique to calculate egfr that doesnt fluctuate from creatine ranges

Yeah – so my eGFR (with out Cystatin C take a look at) got here again at 73. Then I had the Cystatin C take a look at and eGFR comes again at 115.

Might the preliminary studying have been low due to excessive creatinine ranges?

Requested my Kaiser PCP for this take a look at, denied:

‘Cystatin-C just isn’t a routine screening blood take a look at.
Your kidney perform was checked with the creatinine blood take a look at.’

I’ve low creatinine. However 0.77 mg/dL => 0.68 umol/L which isn’t super-low.

FWIW

Take a look at Cystatin C With Glomerular Filtration Price, Estimated (eGFR)
LabCorp Take a look at Quantity: 121265
CPT: 82610

LabCorp billing to insurance coverage within the NY space on 03/17/2023 $202.65

By third occasion service

LabCorp take a look at 121265 via

Life Extension price $99.00

By Marek Diagnostics $79.00
Take a look at one other posting their was a reduction code posted

At discounted labs $57.49

Cystatin C is presently $40 via Ulta Labs. They use Quest Diagnostics. That’s the bottom worth I may discover for self testing.

I’d strive asking your physician to order it; it normally is roofed. I needed to clarify to my Dr. what it was.