Colloid_osmotic_pressure_calculator v.1

Colloid osmotic pressure (COP) calculator is an assessment tool to calculate the colloid osmotic pressure in patients.

Therese Lindberg

therese.lindberg@cambio.se

Cambio CDS

To calculate the colloid osmotic pressure in patients.

Use to calculate the colloid osmotic pressure in order to determine the pressure induced by proteins in blood plasma. Formula: Colloid Osmotic Pressure = (Globulin in g/dL x 1.4) + (Albumin in g/dL x 5.5) Reference ranges: Parameter Normal Low Normal High Globulin 2 g/dL (20 g/L) 3.5 g/dL (35 g/L) Albumin 3.4 g/dL (34 g/L) 5.4 g/dL (54 g/L) COP 23 mmHg 29 mmHg

1. Ingerslev P, Larsen OA, Lassen NA. Measurement of the colloid osmotic pressure in serum with Tybjaerg Hansen's osmometer. Scand J Clin Lab Invest. 1966;18(4):431-6. doi: 10.3109/00365516609113163. PMID: 4161784. 2. Webber CE, Garnett ES. The relationship between colloid osmotic pressure and plasma proteins during and after cardiopulmonary bypass. J Thorac Cardiovasc Surg. 1973 Feb;65(2):234-7. PMID: 4119448.

OBSERVATION.lab_test_globulin.v0, OBSERVATION.lab_test-serum_albumin.v1, OBSERVATION.colloid_osmotic_pressure.v0