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Osmometers, Colloid

Definition : Osmometers designed for direct determination of the osmotic pressure (i.e., osmolality) in a solution that includes particles with a mass greater than 30,000 atomic mass units (i.e., Daltons), such as serum proteins. Colloid osmometers (also known as oncometers) measure osmotic pressure directly by subjecting the sample to a protein-specific osmotic cell; the analytical cell is made up of two chambers of fluid separated by a semipermeable membrane, which is permeable to water and small molecules (e.g., crystalloids, ions) and impermeable to large molecules (i.e., colloids). The clinical use for colloid osmometers is different from other osmometers; they are intended to measure the decrease in osmotic pressure due to decrease in protein concentration in a wide variety of body fluids (e.g., urine, serum, plasma, cephalospinal fluid, pleural fluid, peritoneal fluid) and consequently to measure the risk of edema (e.g., pulmonary edema), facilitating the management of intravenous fluid therapy.

Entry Terms : "Oncometers" , "Colloid Osmometers"

UMDC code : 12800

   

1-11 of 11 Match(es).

ELITech Group

ELITech Group

ELITech Italy

ELITech Italy

ELITech Latin America

ELITech Latin America

ELITech North America

The ELITech Group is a privately held group of worldwide manufacturers and distributors of in vitro diagnostic equipment and reagents. By bringing together IVD specialty companies that offer innovative products and solutions, ELITech Group has become a major contributor in advancing clinical diagnostics to laboratories in the proximity market, those operating closer to the patient.

ELITech Serbia

ELITech Serbia

ELITech Switzerland

ELITech Switzerland

ELITech UK Ltd

ELITech UK Ltd

Gonotec GmbH

Gonotec GmbH

Omega Medical & Scientific Pte Ltd

Omega Medical & Scientific Pte Ltd

UIC Inc

UIC, Inc. was established by Jerold Armstrong in 1965 as a manufacturer's representative firm and has grown into a full manufacturing and R&D facility.

Wescor Inc

Wescor, Inc, Logan, Utah --now a proud part of the ELITech Group of Companies. Wescor announces that its new Model 5600 Vapro Vapor Pressure Osmometer, which measures the osmolality of solutions, will be available in January 2010.

1-11 of 11 Match(es).