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Objective:

To determine whether noninvasive hemoglobin measurement by Pulse CO-Oximetry could provide clinically acceptable absolute and trend accuracy in critically ill patients, compared to other invasive methods of hemoglobin assessment available at bedside and the gold standard, the laboratory analyzer.

Design:

Prospective study.

Setting:

Surgical intensive care unit of a university teaching hospital.

Patients:

Sixty-two patients continuously monitored with Pulse CO-Oximetry (Masimo Radical-7).

Interventions:

None.

Measurements and Results:

Four hundred seventy-one blood samples were analyzed by a point-of-care device (HemoCue 301), a satellite lab CO-Oximeter (Siemens RapidPoint 405), and a laboratory hematology analyzer (Sysmex XT-2000i), which was considered the reference device. Hemoglobin values reported from the invasive methods were compared to the values reported by the Pulse CO …