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Arterial oxygen and carbon dioxide tensions in conscious laterally recumbent ponies
Author(s) -
RUGH K. S.,
GARNER H. E.,
HATFIELD D. G.,
HERROLD D.
Publication year - 1984
Publication title -
equine veterinary journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.82
H-Index - 87
eISSN - 2042-3306
pISSN - 0425-1644
DOI - 10.1111/j.2042-3306.1984.tb01899.x
Subject(s) - anesthesia , medicine , carbon dioxide , respiratory rate , ventilation (architecture) , heart rate , respiratory system , oxygen , arterial oxygen tension , chemistry , blood pressure , lung , mechanical engineering , organic chemistry , engineering
Summary Six adult ponies were trained calmly to assume and maintain left lateral recumbency without the use of sedative or immobilising agents. During a 30 min recumbent period, pHa, arterial oxygen and carbon dioxide tensions ( P ao 2 and P acO 2 ) and heart and respiratory rates were monitored at regular intervals to evaluate ventilatory response. Overall, there were no statistically significant differences found between mean control and recumbent or final standing values. When light‐weight ponies were compared to heavyweight ponies, only mean P ao 2 at 10 mins recumbency was different. This information supports the hypothesis that ventilation impairment during the first 30 mins of equine general anaesthesia is primarily drug‐mediated, rather than initiated by recumbency per se.