Ch.9 Canine & Feline anesthesia Flashcards
What is the following list used to select
-Includes calculated dosages, routes, order of admin.
-Selected by Vet in charge
-Calculate, check, and recheck drug doses, oxygen flow rates, and fluid admin rates
-takes into account MPD, PE, and procedure
-Modified protocol for ill, pediatric, or otherwise comprised animals
an anesthetic protocol
What are the periods of anesthesia
-Premedication
-Induction
-Maintenance
-Recovery
What is the primary goal of premedication
calm patient, allows use of less induction agent
What is the primary goal of induction
rapid induction through excitement stage of anesthesia, gain control of airway
Goal of anesthetist is _ induction
rapid
Primary goal of maintenance
safely maintain patient in the surgical plane of anesthesia
Primary goal of recovery
extubation, provide analgesia, +/- thermal support
Induction agents may be given by what routes
IM, IV, inhalation
What routes may pre-medications be given
SQ, IM, IV
What are the desired effects of premedication or sedation
sedation, cholingeric blockage, analgesia, muscle relaxation
Premedication or sedation drugs are
tranquilizers, alpha 2 agonists, opioids, dissociative, anticholinergics
_ or _ may diminish the beneficial effects after an IM injection
stimulation or excitement
_ should follow immediately after desired effects of an IM injection are reached
Induction
_ induction is most common and takes animals through the excitement stage most rapidly
IV
_ induction results in smooth, gradual CNS depression with little apparent time spent in the excitement stage
IM
When administering IV sedatives, how should you administer the drug?
-Don’t administer the entire calculated dose all at once unless otherwise instructed
-Allow for individual patient response to anesthetic
IV induction produces up to _ -_ minutes of anesthesia
10-20
What is it called when IV drugs are given as a series of bolus injections and discontinued when desired effect is reached
Titration
The following are the benefits of what
-Use in animals which IV injections are difficult
-Young animals, aggressive animals, wild animals, captive animals in zoos
IM induction
The dose of a drug needed for IM induction is generally about _ the corresponding IV dose
twice
IM induction results in a longer recovery period because of a
longer metabolism time
Drugs used for inhalation induction
Isoflurane and sevoflurane
Patients induced by inhalation need higher oxygen flow rates than with endotracheal tube (30 times the tidal volume). How do you calculate the flow rate?
1-3L/min patients <10kg
3-5L/min patients >10kg