Blood or plasma lactate?

Lactate analyzer with continuous blood sampling for monitoring blood lactate during physical exercise.

To monitor changes in the concentration of blood lactate during physical exercise, we used an automated lactate analyzer based on an electro-enzymatic method with continuous blood sampling through a catheter. The lactate concentration was measured every 2 min; between measurements, the instrument was calibrated with a lactate standard. Ascorbic acid, bilirubin, hemoglobin, creatinine, uric acid...

Forty-five-year evolution of stat blood and plasma lactate measurement to guide critical care.

Featured Article: Marbach EP, Weil MH. Rapid enzymatic measurement of blood lactate and pyruvate: use and significance of metaphosphoric acid as a common precipitant. Clin Chem 1967;13:314 –25. The measurement of oxygen deficits, which is reflected in the onset and severity of lactic acidosis, has had wide application in exercise physiology. Measurement of blood or plasma lactate, specifically ...

Warming-Up Affects Performance and Lactate Distribution between Plasma and Red Blood Cells.

Warming-up (WU) is a widely used preparation for training and competition. However, little is known about the potential mechanisms of WU on performance and on the lactate distribution in the blood compartment. The purpose of the present study was to investigate whether different WU procedures affect performance and lactate distribution between plasma and red blood cells (RBCs) after maximal exe...

Gas-chromatographic measurement of 3-hydroxybutyrate and lactate in plasma and 3-hydroxybutyrate in whole blood.

We describe two simple, rapid, and sensitive gas-chromatographic methods. One is for determining 3-hydroxybutyrate and lactate in plasma, the other for determining 3-hydroxybutyrate in perchloric acid extracts of blood. Samples are purified by adsorption onto graphitized carbon black (Carbopak B). After desorption, the two hydroxyacids are gas-chromatographically measured. Chromatography is on ...

"Lactate Shift," Rather Than "Lactate Clearance," for Serial Blood Lactate Monitoring?