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Related Experiment Videos

Endogenous creatinine clearance during pregnancy. Part I. Methodologic considerations

R W Abdul-Karim, J E Harris, S N Beydoun

    Obstetrics and Gynecology
    |August 1, 1976
    PubMed
    Summary

    Noncreatinine chromogens in plasma falsely lower endogenous creatinine clearance (ECC) measurements during pregnancy. This impacts the accuracy of using ECC to assess kidney function in pregnant individuals.

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    Work (Reading, Mass.)·2016

    Area of Science:

    • Biochemistry
    • Nephrology
    • Obstetrics

    Background:

    • Endogenous creatinine clearance (ECC) is a key indicator of renal function.
    • Pregnancy involves significant physiological changes affecting kidney function and laboratory values.
    • Noncreatinine chromogens can interfere with creatinine assays.

    Purpose of the Study:

    • To investigate the impact of noncreatinine chromogens on ECC measurements in pregnant individuals.
    • To determine if plasma noncreatinine chromogens affect the accuracy of renal function assessment during pregnancy.

    Main Methods:

    • Investigated the effect of noncreatinine chromogens on endogenous creatinine clearance (ECC).
    • Analyzed plasma samples from pregnant individuals to quantify chromogen interference.

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  • Compared ECC values with and without accounting for noncreatinine chromogens.

    • Main Results:

    • Noncreatinine chromogens, measured as plasma "creatinine", significantly reduce the calculated ECC value.
    • The presence of these interfering substances leads to an underestimation of true renal clearance.

    Conclusions:

    • Noncreatinine chromogens interfere with creatinine measurements, leading to reduced ECC values in pregnancy.
    • ECC measurements during pregnancy must account for noncreatinine chromogen interference for accurate renal function evaluation.