Aqupharm No.9 Ringer's Solution for Infusion.
Aqupharm No. 9 is an isotonic solution used in dogs and cats for the treatment of dehydration with salt depletion and where there has been some intracellular potassium loss. In cases of persistent vomiting there are substantial losses of both hydrogen and chloride ions, resulting in an excess of intracellullar sodium. Renal compensation leads to an increased potassium loss and consequent hypokalaemia. It is indicated for pyometra when associated with severe vomiting.
Dosage and administration
Aqupharm No. 9 should be prewarmed to 37°C to prevent hypothermia.
Remove outer bag and protective giving set inlet tab. Push cannula fully into giving set. Prime giving set. Perform venepuncture and immediately attach giving set. Adjust infusion rate as required. Delivery is from a closed circuit, it does not need an air inlet.
Giving sets should be changed at least once every 24 hours.
The quantity of fluid and electrolyte for administration will consider existing deficits, maintenance needs and continuing losses.
The existing deficit is that which has been lost prior to examination. This must be estimated by evaluating the patient's history, making a physical examination and using laboratory aids.
Maintenance therapy is to replace normal losses occurring via urine, faeces, respiratory tract and skin. As a general rule maintenance therapy requires 50mls/kg bodyweight/day. Continuing losses during a disease period should be estimated whenever possible, i.e. quantity of vomit, diarrhoea or blood loss.
The clinical response of the animal rather than formulae or equations should be used to guide fluid therapy. The intravenous route of administration is preferred. Indwelling venous catheters offer significant advantage in intravenous fluid therapy. Subcutaneous administration may be used for isotonic and non-irritating solutions.
The rate of administration should be considered with each individual patient. The aim should be to correct about half of the calculated deficit in the first 1–2 hours. As a general rule the following formula is the maximum satisfactory rate (less where cardiovascular or pulmonary disease exists).
Maximum rate=Body wt (kg)×90=mls fluid per hour.
This rate should be slowed after the first hour and considerably slowed if no urine flow is established. Signs of over rapid administration include restlessness, moist lung sounds, tachycardia, tachypnoea, nasal discharge, coughing, vomiting and diarrhoea.
500ml and 1000ml.