Re: haemacell

Nick Shackleton — Sun, 28 Mar 2010 11:14:20 GMT

Initial dose in hypovolaemic animals, regardless of which colloid type, is 5ml/kg/hr in dogs and cats given over 10-30 mins. After this bolus the patient should be reassessed. Repeat doses can be given. They should be given with caution especially in cats as repeat doses can result in pulmonary oedema.

the maximum dosage of colloid is 20mls/kg/24hr

Re: haemacell

SmegSlayer — Sun, 28 Mar 2010 09:42:01 GMT

Rates depend on what your animals' condition. Colloids are used to give a big boost to the intravascular pressure. they contain big molecules so are too big to diffuse through the capillary walls into the interstitial spaces. They affect the osomolarity by drawing water into the capillaries. the molecules are eventually broken down but the fluid deficit should be ok by that point, especially as haemacell can be used in conjunction with crystalloids. Colloids are when there is severe shock, PCV <20% but not so severe as to require Oxyglobin or a blood transfusion, severe dehydration and when plasma protein levels drop enough to cause oedema and ascites.

the rate is determined by the patient's condition (clinical picture, arterial blood pressure, pulse rate, urinary output, central venous pressure, plasma electrolytes and blood picture). when trating hypovolaemic shock it is species, weight and % loss dependant, so maybe talk to the vet if you don't know the %loss and then go from there.