By Elizabeth Welsh (ed.)
Sedation and anaesthesia are an important a part of veterinary perform. The protocols and strategies concerned are frequently advanced and range significantly from animal to animal. The veterinary nurse has a pivotal function in anaesthesia, being without delay concerned earlier than, in the course of and after the anaesthetic interval.
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Extra info for Anaesthesia for Veterinary Nurses
R. (1993) Respiration in birds. J. O. Reece). Cornell University Press, Ithaca, New York and Comstock, London. Ganong, W. F. (1989) Cardiovascular regulatory mechanisms. In: Review of Medical Physiology 14th edition. Prentice Hall, USA. Anaesthesia for Veterinary Nurses Edited by Elizabeth Welsh Copyright © 2003 Blackwell Science Ltd 3 Preoperative Assessment and Preparation of the Patient Joan Duncan The perfect anaesthetic drug would induce reversible unconsciousness, analgesia and muscle relaxation without depression of the heart and lungs.
Blot the area next to the incision and do not disturb the wound. Record the time taken for bleeding to stop. A marked difference in bleeding times for the two incisions usually reﬂects laceration of a blood vessel by one blade. Results In normal, sedated or anaesthetised dogs and cats the BMBT is less than 4 minutes. Preoperative Assessment and Preparation of the Patient 47 Renal disease The following factors should be considered in patients with renal disease: • Uraemia increases the sensitivity of the patient to anaesthetic drugs.
The electrolytes sodium, chloride, potassium and calcium are all important for normal cardiac function. Initial depolarisation of the cell takes place when sodium channels in the cell membrane open, increasing sodium permeability. The resting membrane potential becomes less negative due to an inﬂux of positive sodium ions. The cell begins repolarising when the sodium gates close and negatively charged chloride ions begin to move into the cell. Calcium channels open, allowing inﬂux of these ions.