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15 Cards in this Set
- Front
- Back
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Anatomic dead space |
breathing passages (bronchi, trachea, larynx, pharynx, and nasal cavity) that convey fresh oxygen from the source to the alveoli but in which no gas exchange occurs |
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Anesthetic induction |
the process by which an animal loses consciousness and enters general anesthesia |
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anesthetic maintenance |
the process of keeping a patient in a state of general anesthesia. The period between induction and recovery. |
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anesthetic protocol |
a list of the anesthetic agents and adjuncts prescribed for a particular patient including doses, routes, and order of administration |
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anesthetic recovery |
the period between the time the anesthetic is discontinued and the time the animal is able to stand and walk without assistance. |
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central nervous system vital centers |
areas of the brain that control cardiovascular function, respiratory function, and thermoregulation. |
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hypostatic congestion |
pooling of blood in the dependent lung and tissues (those nearest the floor or table). |
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laryngospasm |
a reflexive closure of the glottis in response to contact with any object or substance |
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mechanical dead space |
the tubes that convey fresh oxygen from the source to the alveoli, but in which no gas exchange takes place |
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pneumomediastinum |
the presence of air in the space between the lungs that contains the heart and great vessels. |
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pneumothorax |
the presence of air in the space between the lungs and the chest wall associated with collapse of the lungs |
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stridor |
noisy breathing caused by turbulent air flow in the upper airways |
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titration |
administration of an anesthetic agent in small increments until the desired depth of anesthesia is reached, as opposed to administration of the entire calculated dose. |
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total intravenous anesthesia |
induction and maintenance of anesthesia by intravenous injection of ultra-short-acting anesthetics with no concurrent use of inhalant agents. Accomplished using repeat bolus injections or a constant rate infusion. |
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Chapter 8 notes |
Induction:
-isoflurane: 3% -5% by mask or chamber -sevoflurane: 4% - 6% by mask or chamber -propofol: 6-8mg/kg IV to effect, if not premedicated, 2-4mg/kg IV after premedication -IV ketamine/diazepam: Ket 5.5mg/kg and diazepam 0.28mg/kg
Maintenance with gas inhalants:
-sevoflurane: 2.5% - 4% -isoflurance: 1.5% - 2.5% -desflurane: 8% - 12% -IV propofol: repeat boluses to effect every 3 - 5 minutes, or 0.2 - 0.4mg/kg/min by CRI
Recovery: -monitor vitals every 5 minutes (HR, pulse quality, MM, respiratory pattern, signs of pain, and temperature. -turn every 10-15 minutes to prevent hypostatic congestion. -administer oxygen at 50-100ml/kg/min for 5 minutes to allow waste anesthetic gases to be scavenged and to help reinflate collapsed alveoli through bagging. -most cats require a 3 - 4.5mm et tube -a dog weighing 20kg will require a 9.5-10mm et tube, increase or decrease the size approximately 1mm for each 5kg of body weight under or over 20kg, applies to patients weight 10-40kg |
