Anesthesia Lecture 2 Flashcards
(44 cards)
ASA 1
Normal healthy animals that have no underlying disease
ASA II
Animals w/ slight to mild systemic disturbances. Animals are able to compensate and have no CS of disease
ASA III
Animals w/ moderate to severe systemic disease or disturbances. Mild CS
ASA IV
Animals w/ pre-existing systemic disease or disturbances of a severe nature;
ASA V
Surgery often is performed in desperation on animals w/ life threatening systemic disease or disturbances not often correctable by an operation. Includes all animals no expected to survive 24 hrs
Why is fasting done before surgery?
Animals that are fed before being placed under anesthesia may vomit/regurgitate during anesthesia or recovery
As a general recommendation, adults should be fasted for…
8-12 hours
Why are exotics, neonates, birds, and toy breeds fasted for a shorter period of time?
To prevent a decrease in glucose (hypoglycemia)
Animals greater that 3 months of age are at a higher risk of…
Drug overdose, hypothermia, and hypoglycemia
Advantages of an IV catheter
An easy way to administer IV agents to initiate anesthesia and administer IV fluids during the procedure
Animals 6-16 weeks should not be withheld from food for…
Greater than 4 hours
Balanced Anesthesia
Smooth anesthetic induction, smooth recovery
Pre-emptive analgesia
Administering pain meds prior to painful procedures
Agonist
Binds to and stimulates tissue receptors
Antagonist
Binds to but does not stimulate receptors
Partial agonist
Binds to and partially stimulates the receptors
Agonist-antagonist
Binds to more than one receptor type and simultaneously stimulates at least one and blocks at lease one
These drugs are used to prevent and treat bradycardia, decrease salivary secretions, are bronchodilators, and are not sedatives
Anticholinergics
Routes Atropine can go
IV, IM, SQ, or IT
Adverse effects of Atropine
Decreased tear production, mydriasis, prevents bradycardia, decreased peristalsis, bronchodilation, reduces salivation, drying of mm’s and eyes, constipation/GI stasis, and unwanted tachycardia
Atropine should be avoided in…
Animals w/ pre-existing tachycardia, animals w/ ileus or constipation, colic in horses
Tranquilizers
A drug that reduces anxiety but does not necessarily decrease awareness
Sedative
A drug that causes reduced mental activity; calm, relax, and may lose consciousness
Example of Phenothiazines
Acepromazine
