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Monitoring Anesthesia in Laboratory Animals During anesthesia the patient should be monitored to insure adequate circulation, oxygenation, and ventilation. Suggestions for monitoring anesthetized veterinary patients have been developed the the American Veterinary Medical Association. For large species the pulse, respiratory rate, mucuous membrane color and temperature should be monitored on a routine basis. Monitoring anesthesia in rodents is possible but the small size of rodents precludes the use of several methods to monitor anesthesia commonly used in larger species. Normal physiologic parameters of laboratory animals:
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| Heart rate | 70-80 (adult); 115 (lamb); |
| Respiratory Rate | 12-15 (adult); 15-18 (lamb) |
| Perfusion Time of Oral Mucous Membranes | 1-2 seconds |
| Rectal Temperature | 38.5-40 C (adult); 38.5-40.5 (lamb) |
Note: Ocular reflexes are of little value in monitoring depth of anesthesia in sheep. 25
| Heart rate, large breed-adult | 60-80 |
| Heart rate, small breed-adult | 80-120 |
| Heart rate, young dog | 110-120 |
| Respiratory Rate, old dog | 14-16 |
| Respiratory Rate, young dog | 20-22 |
| Perfusion Time of Oral Mucous Membranes | < 2 seconds |
| Rectal Temperature | 37.5-39 C ; 99.5-102.2 F |
| PaO2 | 70-95 |
| PaCO2 | 40-50 |
| pH | 7.3-7.4 |
| Heart rate, adult | 130-140 |
| Heart rate, young | 100-120 |
| Respiratory Rate | 20-30 |
| Perfusion Time of Oral Mucous Membranes | < 2 seconds |
| Rectal Temperature | 8-39.5 C; 100.4-103.1 F |
| PaO2 | 70-95 |
| PaCO2 | 25-35 |
| pH | 7.3-7.4 |
| Heart rate - sedated | 120-180 |
| Respiratory Rate - sedated | 32-50 |
| Rectal Temperature | 37-39.1 C; 99-102.5 F |
| © 2002 The University of Iowa. All rights reserved. Contact Information: donna-rayl@uiowa.edu Last updated: 07/18/2002 |
