Assessment of the Nova StatSensor whole blood point-of-care creatinine analyser for the measurement of kidney function in screening for chronic kidney disease
Point-of-care testing for creatinine using a fingerprick sample and resultant estimated glomerular filtration rate has potential for screening for chronic kidney disease in
community settings. This study assessed the applicability of the Nova StatSensor creatinine analyzer for this purpose. Fingerprick samples from 100 patients (63 renal,
37 healthy volunteers; range 46β962 mmol/L) were assayed
using two StatSensor analyzers. Lithium heparin venous
plasma samples collected simultaneously were assayed in
duplicate using the isotope dilution mass spectrometryaligned
Roche Creatinine Plus enzymatic assay on a Hitachi
Modular P unit. Method comparison statistics and the ability
of the StatSensor to correctly categorise estimated glomerular
filtration rate above or below 60 mL/min were calculated
pre- and post-alignment with the laboratory method.
Isotope dilution mass spectrometry alignment
of the StatSensor will identify most patients with estimated glomerular filtration rate -60 mL/min, but there will be
many falsely low estimated glomerular filtration rate results
that require laboratory validation. Creatinine results need
improvement