Cardiac Output Measurement In The Critically Ill: Invasive Versus Noninvasive Techniques
Published 1991 · Medicine
Oxygen transport to the tissues is fundamental to organ function and therefore preservation of life. Appropriate oxygen supply to the tissues depends on hemoglobin level, arterial oxygen tension, cardiac output, blood flow distribution and various peripheral factors governing the oxygen release to the cells. Therefore, the assessment of cardiac output is as important as the measurement of hemoglobin or PaO2 to insure appropriate oxygen transport to the tissues. The clinical assessment of a low cardiac output is probably as reliable as the clinical assessment of anemia or hypoxemia. As hemoglobin levels and blood gas tensions need to be measured in some clinical situations, cardiac output measurements can be required for proper management of the critically ill patient.