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Is a blood sample for hemoglobins in the transfusional range reliable?
A López1, L Gómez1, G Petinal1
1Grupo de Investigación en Anestesia y Cuidados Críticos, Instituto de Investigación Sanitaria Galicia SUR (ISS Galicia Sur), SERGAS-UVIGO, Galicia, España; Servicio de Anestesia y Reanimación, Complexo Hospitalario Universitario de Ourense (CHUO), SERGAS, Ourense, España.
Objective:
To evaluate the correlation and agreement in our unit and population of hemoglobin in gasometry versus hematology analyzer, to evaluate errors in transfusion or lack thereof.
Results:
strong association between Point-of-care (POC) and hematimetry, with P<.001, with a coefficient of determination r2 of 0.56, an intraclass correlation coefficient of 0.63 and a Lin's concordance correlation coefficient of 0.65. For hemoglobins less than 7g/dL, a success rate of 29.41% was obtained.
Conclusions:
Low-moderate agreement of POC hemoglobin with standard haemothymetry. High probability of errors in the indication of transfusion based on gasometer hemoglobins, especially in low hemoglobins.
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