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Evaluation of Serum Creatinine Levels with Reference Change Value in Patients Receiving Colistin Treatment
Havva Yasemin Cinpolat1, Sevil Alkan2, Hatice Betul Altinisik3
1Department of Medical Biochemistry, Faculty of Medicine, Canakkale Onsekiz Mart University, Canakkale, Turkey.
Objective:
In this study, we aimed to evaluate the serum creatinine (SCr) levels with the reference change value (RCV) in patients receiving colistin treatment.
Methods:
We retrospectively recorded the SCr levels of 47 patients receiving colistin treatment before treatment and on days 3 and 7 after treatment. RCV was calculated with the asymmetrical RCV formula (Z = 1.64, P < .05). Percent (%) increase in the SCr results of the patients was compared with RCV and values exceeding RCV were regarded as statistically significant.
Results:
The RCV was calculated as 15.6% for SCr. Compared with pretreatment values, SCr value on day 3 was 32/47 and on day 7 it was 36/47; as these results exceeded RCV, they were considered statistically significant.
Conclusion:
Use of RCV in the interpretation of results between serial measurements will provide a more rapid and sensitive method when making decisions.
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