Shared Flashcard Set

Details

autonomic drugs
autonomic drugs
17
Medical
Professional
12/11/2008

Additional Medical Flashcards

 


 

Cards

Term
T or F dobutamine is selective for B1- adrenoceptor
Definition
True
Term
T or F ephedrine is selective for the alpha-adrenoceptor
Definition
F- it is nonselective
Term
What drug is alpha2 selective that decreases blood presusure- isoproterenol or clonidine
Definition
clonidine
Term
what is the major condition treated with terbutaline and albuterol and what receptors do they work on?
Definition
bronchial asthma/ B2 receptors
Term
alpha2 or B1 sympathomimetcs (adrenergic agonists) increase cardiac output
Definition
B1
Term
Do the alpha1 agonists contract or dialate smooth muscle
Definition
contract
Term
does phenylephrine act on mainly alpha 1 or 2 and what is its theraputic use
Definition
alpha1- nasal decongestant
Term
does dobutamine affect B1 or 2 receptors more and what affect does it have
Definition
B1 increases heart rate
Term
T or F at low doses dopamine causes renal and coronary vasoconstriction and activates B1 receptors in heart
Definition
False- it causes renal and coronary vasodilation
Term
what drug is a indirect-acting sympathomimetic abused because of its psychostimulant abilities
Definition
amphetamine
Term
What affects do Beta-adrenoceptor antagonists have on vascular system
Definition
block sympathetic stimulation- leads to lower HR, BP
Term
T or F phentolamine is a nonselective, competitive alpha-adrenoceptor antagonist
Definition
True
Term
What two conditions is prazosin used to treat and what is its class?
Definition
alpha1-adrenoceptor antagonist used to treat hypertension and prostatic hypertrophy
Term
What class does timolol fall into
Definition
B blocker
Term
what is special about labetalol
Definition
it blocks both beta and alpha receptors
Term
what is the main adverse reaction of nonselective B-adrenoceptor antagonists
Definition
Beta2 block= bronchial constriction. This is bad in asthma/ COPD patients
Term
T or F phentolamine is a nonselective alpha agonist
Definition
False- it is a nonselective alpha antagonist
Supporting users have an ad free experience!