Polymers in Biology and Medicine Therefore, dextran has been used as plasma volume expander for several decades. Dextran 40 and 70, with molecular weight of 40 and 70 kDa, respectively, are prescribed for the treatment of shock or impending shock due to hemorrhage, burns, or trauma.
What is LMD 10%?
10% LMD (dextran 40) is an artificial colloid pharmacologically classified as a plasma volume expander; 5% Dextrose Injection is a fluid and nutrient replenisher; 0.9% Sodium Chloride Injection is a fluid and electrolyte replenisher.
What are the clinical uses of dextran?
Dextran is used to treat hypovolemia (decreased volume of circulating blood plasma), that can result from surgery, trauma or injury, severe burns, or other causes of bleeding.
Is dextran 40 a colloid?
Dextran is a synthetic colloid consisting of mixture of glucose polymers derived from the action of Leuconostoc mesenteroides on sucrose and is currently available in 10% dextran 40 (40 kDa) and 6% dextran 70 (70 kDa). Other side effects of dextrans include allergic reactions and coagulopathy.
What do plasma expanders do?
Plasma volume expanders are used for the treatment of circulatory shock. They restore vascular volume, stabilising circulatory haemodynamics and maintaining tissue perfusion. Plasma protein fraction is effective in maintaining blood volume but does not increase oncotic pressure.
What is difference between dextran and dextrose?
is that dextran is (chemistry) a biopolymer of glucose produced by enzymes of certain bacteria; used as a substitute for blood plasma, and as a stationary phase in chromatography while dextrose is the naturally-occurring dextrorotatory form of glucose monosaccharide molecule.
What is Agents of Shield LMD?
The Life-Model Decoys, or LMDs, were androids designed to replicate every feature of a living person. They were originally designed by S.H.I.E.L.D. to be distractions and life-saving substitutes of their agents.
Is dextran a polymer?
Structure. Dextran is a polymer of anhydroglucose. It is composed of approximately 95% alpha-D-(1-6) linkages. Native dextran has been found to have a molecular weight (MW) in the range of 9 million to 500 million.
How dextran works as plasma expander?
High-molecular weight dextran is a plasma volume expander made from natural sources of sugar (glucose). It works by restoring blood plasma lost through severe bleeding. Severe blood loss can decrease oxygen levels and can lead to organ failure, brain damage, coma, and possibly death.
What type of solution is dextran?
Dextran of lower molecular weight is produced for clinical applications. Dextran produces relatively low-viscosity solutions, which distinguishes it from other high-molecular-weight polysaccharides. It is a neutral polymer.
How do you give dextran 40?
It is administered by intravenous infusion. Also described as low viscous or low viscosity dextran, dextran 40 is prepared by acid hydrolysis and differential fractionation of a crude macromolecular polysaccharide produced from the fermentation of sucrose by the bacterium, Leuconostoc mesenteroides (strain B-512).
Which colloid is best?
Crystalloid solutions are the most frequently chosen, by far, with normal saline (NS) and lactated Ringer’s (LR) both being the most frequent choices. Colloids are an alternative to crystalloids, with highly variable use depending on a myriad of clinical variables.
What is dextran 40 used to treat?
LMD (dextran 40) is indicated for use in the adjunctive treatment of shock or impending shock due to hemorrhage, burns, surgery or other trauma. It is not indicated as a replacement for whole blood or blood components if they are available.
How much LMD is in a 5% dextrose injection?
10% LMD in 5% Dextrose Injection Rx only. (Dextran 40 in Dextrose Injection, USP) DESCRIPTION. LMD (dextran 40) is a sterile, nonpyrogenic preparation of low molecular weight dextran (average mol. wt. 40,000) in 5% Dextrose Injection or 0.9% Sodium Chloride Injection. It is administered by intravenous infusion.
What is the concentration of dextran 40 in water?
Total osmolar concentration is 255 mOsmol/liter (calc.); pH is 4.4 (3.0 to 7.0). Each 100 mL of 10% LMD (dextran 40) in 0.9% Sodium Chloride Injection contains 10 g dextran 40 and 0.9 g sodium chloride in water for injection.
What is LMD injection used for?
Indications and Usage for LMD Injection. LMD (dextran 40) is indicated for use in the adjunctive treatment of shock or impending shock due to hemorrhage, burns, surgery or other trauma. It is not indicated as a replacement for whole blood or blood components if they are available.
