• JACEP · Jul 1979

    Shock and resuscitation. III. Accurate refractometric COP determinations in hypovolemia treated with HALFD.

    • C Jelenko, R I Solenberger, M L Wheeler, and B D Callaway.
    • JACEP. 1979 Jul 1;8(7):253-6.

    AbstractIn 38 critically burned patients with symptomatic hypovolemia being treated by intravenous fluids, the accuracy of colloid oncotic pressure (COP) calculated from the refractometrically-determined serum total protein (TPRI) was compared with COP values determined by a commercially-available clinical oncometer. Sera were obtained randomly from seven patients receiving Ringer's lactate solution, five receiving a hypertonic solution (240 mOsm Na+) and 26 receiving a hypertonic solution containing albumin (12.5 gm/liter, HALFD method). There was poor correlation between COP measure and that calculated from RI in patients receiving colloid-free fluid, but high correlation (r = 0.925) in patients receiving HALFD. There was high correlation (r = 0.951) between measured COP and values calculated from TPRI in patients receiving hypertonic fluid, colloid containing hypertonic fluid, or no fluid:COP = 4.08 (TPRI)--4.61.

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