Pharmacology Flashcards
What is AMDUCA?
Animal Medical Drug Use Clarification Act of 1994
What is ELDA?
Extra Label Drug Use
What is DMPK?
Drug Metabolism Pharmocokinetic Studies
What is FDA?
Food and Drug Administration
What is EPA?
Environmental Protection Agency
What is DATCP
Department of Agriculture Trade and Consumer Protection
What is FARAD?
Food Animal Residue Avoidance Databank
What is VFD
Veterinary Feed Directive
Rounding Rules for SYringes
less than 1 round to 0.01 cc
1-6 Round to .1 cc
Greater than 6 round to 1 cc
What syringe do you use?
Use one no more than 10x the amount being administered
What is percentage solid solute
weight/volume
What is liquid percentage solute?
volume/volume
What are the suffixes for tranquilizers and sedative?
azine
az
dine
What are examples of tranquilizers and sedatives?
phenothiazene
Benzodiazepine
A2 Agonists -dine & xylazine
What are induction agents?
Barbiturates starting with thio and oxy
Dissociative anesthetics ending in mine
Miscellaneous such as propofol and guiafenesin
What do local anesthetics end in?
-caine such as lidocaine
What are examples of narcotics?
Butorphanol and Oxymorphone
What are examples of Opiods
Fentanyl
Codeine
Buprenorphine
Tramadol
What are the reversals of analgesics?
Naloxone
Nalorphine
Naltrexone
What are the receptors for analgesics and what do they affect?
mu -CNS, cough, respiratory decrease
kappa - spinal cord
delta - minimal animal effects
What is an emergency anti-convulsant?
Diazepam
What are maintenance anti-convulsants?
Pheonbarbital, primidone, Potassium bromide
What are the long term affects of phenobarbital?
PU/PD, hepatoxicity, Decreased CNS
What are CNS stimulants?
Yohimbine, Tolazoline
Atipamezole
Methylxanthines
What reverses Yohimbine and tolazoline
xylazine
What reverses medetomidine?
Atipamezole
What are anticholinergics?
atropine and glycopyrrolate
What is used for euthanasia?
pentobarbital sodium
What are the antibiotic classes of betta lactam?
Penicillins
Cephalosporins
Bacitracin
What is the mode of action for betta lactam abx?
Cellwall
What are the side effects of betta lacatam abx?
allergies
What is the abx that work on the cell membrane?
Polymixin B
What are the side effects of Polymixin B
Many
What are the abx that work by protein synthesis?
Aminoglycosides
Tetracyclines
Chloramphenicol
Macrolides
Lincosamides
What is the side of aminoglycosides?
Kidney/ototoxicity
What are the side effects of tetracycline?
affect bone/teeth
What is the side effect of chloramphenicol?
aplastic anemia
What species should macrolides never be used in?
Horses
What are the suffixes for aminoglycosides?
cidal
micin
What are the suffixes for macrolides?
mycin
What is the microanatomy of cardiovascular drugs?
Contractile Muscle Cells
Conduction Cells
Receptors
What are the conduction cells?
Depolarization or firing and repolarization or resetting
What does the p wave do?
activation of atria
What does the QRS wave do?
activation of ventricles
What does the t wave do?
Recovery wave
What are thecardiovascular receptors?
cholinergic and andrengic
What is the path of depolarization?
SA node, AV node, right and left Bundle of HIS, perkinje fibers, ventricular muscle cells
What controls sinus rhythm?
SA node
What is depolarization and repolarization do at a cellular level?
Charged ions such as Na+, K+, and Ca++ exchange places across a cell membrane
In depolarization and repolarization what does the change in cellular charge do?
causes the cell to contract and sets off a wave of depolarization across the entire heart
What is the resting state of the cell ?
The NaK ATPase Pump moves ions across cell membrane to polarize
In cardio what is preload?
the pressure exerted on the ventricle wall by the load or volume of blood in the ventricles just before ventricular contraction
In cardio what is a conduction Cell?
special cardiac cells that quickly pass along a depolarization wave throughout the the heart resulting in coordinated contraction
In cardio, what is automaticity?
the ability of certain heat cells to depolarize spontaneously on their own
What is the SA node?
pacemaker of the heart
What is the P wave?
the part of the ECG that represents atrial depolarization
What is the AV node?
the specialized structure throuh which depolarization waves in the atria must pass to get to the ventricles; it delays the depolarization wave as it passes
What is the P-QRS Interval?
the part of the ECG that represents movement of the depolarization wave through the AV node
What is the QRS complex?
Part of the ECG that represents ventricular depolarization
What is the T wave?
part of the ecg that represents ventricular repolarization
Significance of potassium in cardio?
when a cardiac cell is in the resting polarized state, this ion is mostly concentrated on the inside of the cell
Significance of sodium in cardio?
This ion ruses into the cardiac cell to initiate repolarization
What is the Sodium-Potassium-ATPase pump?
the specialized pump that maintains concentrations of sodium and potassium in their respective locations during the polarized resting state
What is the significance of calcium in cardio?
the influx of this ion produces the plateau phase of cardiac muscle cell depolarization
What is arrythmia?
any abnormal or irregular heart rhythm
What is the signifcance of epinephrine and norepinephrine in cardio
two catecholamines released by the sympathetic nervous system that produces its effect
What is the significance of B1 in cardio
stimulation of this receptor increases heart rate
What is the significance of cholinergic or muscarinic
stimulation of this receptor slows heart rate
What is the significance of B2 in cardio
stimulation of this receptor causes bronchodilation
What is A1?
stimulation of this receptor causes peripheral vasoconstriction
What is ectopic focus in cardio?
this is a site of depolarization in the heart that is other than on the normal conduction pathway sequence
What is premature ventricular contraction PCV?
large bizarre looking wave on the ECG caused by some cell in the ventricles depolarizing on its own out of sequence and disrupting normal ventricular depolarization
What is a 1st degree AV block?
abnormality seen on ECG as a prolongation of the PR interval representing a decreased conduction of the depolarization wave through the AV node
What is the suffix -olol
often indicates drug is a B-blocker or B1 antagonist antiarrythmic drug
What is upregulation?
the process by which cardiac cells become less sensitive to the effects of b-blocker antiarrythmics
What are baroreceptors?
these detect changes in atrial blood pressure
What is renin-angiotensin system?
this system helps regulate arterial blood pressure, water, and electrolytes through is action on the kidney and peripheral blood vessels
What is angiotensin?
the body’s most potent vasoconstrictor converted to its active form by ACE or angiotensin converting enzyme
What is aldosterone?
the hormone that regulates the sodium reabsorption from the urine
What is a venodilator?
The term applied to drugs that selectively dilate veins
What is a diuretic?
term applied to drughs that can cause increased production of urine
What is lidocaine in cardio?
- Antiarrythmic drug that acts by blocking the sodium channels
- Drug of choice for control of ventricular ectopic foci
- Must be given IV
- Not effective PO because of GI irritation and first pass effect
What is mexiletine?
- Orally administered sodium channel blocker
- Antiarrythmic that is used to treat ventricular arrythmias
- Minimal first pass effect
- Typically available as a compound drug
What is propanolol?
nonspecific prototype B1 antagonist antiarrythmic drug
What is atenolol?
antiarrythmics that are more specific for b1 receptors than the non-specific prototype b-blocker
WHat is atenolol also known as?
esmolol, metoprolol, carvedilol
What are verapamil and diltiazem?
calcium channel blocker that is an antiarrythmic
What is digoxin?
Used as an antiarrythmic only to slow conduction the the AV node causing a 1st or 2nd degree av block by reducing the ventricular contraction rates in animals with atrial fibrillation
What is dobutamine?
epineprhine or norepinephrine
positive inotropic drug used only for short periods of times because of the downregulation effect
What is pimobendan?
inodialator
What is amlodipine?
calcium channel blocker arterial visodilator used in cats for hypertension caused by renal disease, hyperthyroidism, or diabetes mellitus
What is hydralazine?
direct arterial vasodilator used to relieve signs of CHF caused by mitral valve disease or used when ACE inhibitors fail to adequately control clinical signs of heart failure on their own
WHat is nitroglycerin?
venous vasodilator applied as a cream
What is enalapril aka?
captopril, benazepril, lisinopril
What is enalapril?
mixed vasodilator quite commonly used to treat dogs exhibiting clinical signs of cardiac disease; ace inhibitor
What is furosemide?
loop diuretic
What is chlorothiazide?
diuretics that works on the distal convoluted tubule to block sodium reabsorption; not as strong as loop diuretics
WHat is spironolacone-potassium
Sparing diuretic
What is aspirin used for in cardio?
reduce spontaneous clot formation
What is upregulation?
process of increasing a response to a stimulus specifically incrase of receptors on the cells surface
What is downregulation?
process by which a cell decreases the quantity of a cellular component