Test 2 Practice Questions Deck 3 Flashcards
What is the drug of choice for hypotonic sphincter?
Phenylpropanolamine (PPA)
What is the drug of choice for anaphylactic shock?
Epinephrine
Why do you use Glycopyrrolate instead of Atropine?
Glycopyrrolate is more specific to the heart, doesn’t cross the BBB, and is
longer lasting
What receptors and at what concentrations does Dopamine work?
Low- Dopamine Family receptors
Med- Beta-agonists
High- Alpha-agonists
Which drugs are approved in cows for feed efficiency?
Which is approved in turkeys?
Which is illegal in cows?
Zilpaterol- Approved in cows
Ractopamine- Approved in turkeys, cows and pigs
Clenbuterol- Illegal in cows
What drugs can be used to treat Myasthenia Gravis?
Pyrostigmine or Neostigmine
Explain the mechanism of action (MOA) of Pilocarpine.
Pilocarpine contracts the ciliary body, pulling the iris away from the meshwork
and allowing fluid to drain, which decreases IOP
What drug is used in diagnosis of Myasthenia gravis?
Edrophonium
What is required to treat with Bethanecol?
Intact bladder wall and patent urethra
What do you use for gastric spasm in dogs and cats?
Aminopentamide
T/F:
Neostigmine is contraindicated in rumen atony
FALSE
It treats it
What drug is an indirect parasympathomimetic that crosses the BBB?
Phyostigmine
What is the shortest acting eye drug?
Tropicamide
Which drugs are irreversible?
THE PHATES!
Organophosphates
Echotiophate
Diisopropyl fluorophosphates
What signs are seen in organophosphate toxicity?
DUMBBELS
Diarrhea
Urination
Miosis
Brochospasm
Emesis
Lacrimation and Salivation
Which is illegal for feed efficiency in food production animals?
Clenbuterol
Which drug is used to induce urination in an animal that has Pheochromocytoma?
Phenoxybenzamine
Prazosin treats hypertension and what else?
CHF, functional urethral obstruction
What is the dilution factor when using epinephrine?
1: 10,000
Why do you use Clenbuterol with steroids?
To increase the number of beta-receptors
and overcome tolerance
Propanolol is used to treat what in Cats?
Hypertrophic cardiomyopathy caused by hyperthyroidism
What is isoproterenol used for?
To increase HR and force of contraction
by increasing O2 consumption and decreasing vascular resistance
What are the clincal uses for Dobutamine?
Increase HR and contraction
What is the mechanism of action of Timolol?
Vasoconstriction via blocking Beta-receptors
