Shared Flashcard Set

Details

Adrenergic Meds
Pharm test 2
32
Nursing
Graduate
05/30/2012

Additional Nursing Flashcards

 


 

Cards

Term
adrenergic meds
Definition
produce effect by activiating the adrenergic receptors, leads to similar responses as activating the SNS, therefore often referred to as sympathomimetics. FIGHT OR FLIGHT
Term
inotropic
Definition
+ increases force of contraction
- decreases force of contraction (relax)
Term
5 main receptors for adrenergic
Definition
Alpha1, Alpha 2, Beta1, Beta2, Dopaminergic
Term
Alpha1
Definition
profuse body wide vasoconstriction, mydriasis. eyes, blood vessels (vasoconstriction), male sex organs (ejaculation), prostatic capsule (contration), bladder (contraction)
Term
primary uses for Alpha1
Definition
hypotension, homeostatis, nasal decongestion, adjunt to local anesthesia, mydriasis
Term
end result for Alpha2
Definition
hypotension, analgesia (pain relief)
Term
Alpha2
Definition
stim. in periphery has little consequences. stim in CNS will lead to sympathetic outflow tot he heart and the blood vessel. Will block Alpha1- producing a vasodilation state. DROPS BP watch closely. will eliminate Norepy.
Term
Beta1
Definition
receptors in heart. inc HR, inc. pupil constriction
Term
Primary uses for Beta1 activation
Definition
cardiac arrest, heart failure (pump failure)- need to pump harder and faster. shock
Term
Beta2
Definition
in lungs. rescue inhalers. dilation of uterine muscle, relaxtion of uterine muscle, activation of gylcogenoylsis,
Term
primary uses for Beta2 activation
Definition
asthma, delay of pre term labor.
Term
glycogenolysis
Definition
making new glucose, conversion of glycogen to glucose within the liver. raises blood sugar, can cause temp diabetic situation.
Term
epinephrine
Definition
mimics adrenaline. stimulates A1, A2 (peripherally), B1 (needs cardiac contraction), B2
Term
main uses for epinephrine
Definition
hypotension, mydriasis, bronchodialtion, in conjunction with local anesthetics and anaphylactic shock
Term
Epinephrine SE/AR
Definition
hyptertensive crisis, cardiac dysrhythmias, angine pectoris, hyperglycemia (due to B2)
Term
Norepinephrine
Definition
Levophed. very strong. stim A1, A2, B1- very sim to epi.
Term
main uses for norepinephrine
Definition
severe hypotension (causes profuse vasocontriction), utilized during cardiac arrest, most spec. with hypotension with dec organ perfusion (shock)
Term
Norepinephrine SE/AR
Definition
similar to epi. does not cause hyperglycemia (doesnt activate B2), can cause loss of limb due to profuse vasoconstriction over 4 hrs "leave em dead"
Term
Dopamine
Definition
receptor in kidneys. Dopamenergic, B1, A1. harsh drug.
Term
low dose dopamine
Definition
0.5 mcg-2mcg dopamenergic- increases renal perfusion and thereby increases UO
Term
moderate dose of dopamine
Definition
2-10mcg (mostly B1)
Term
high dosage of dopamine
Definition
greater than 10mcg (some B1 until ~15mcg then strictly A1) potent vasoconstrictor
Term
Dobutamine
Definition
strong but not as strong as mod dose dopa. B1, used mainly for heart failure
Term
dobutamine SE/AR
Definition
tachycardia, exacerbation (make worse) of heart failure
Term
adrenergic antagonists
Definition
block A1 response, cause elicit vasodilation. utilized for essential hypertension, pheochromocytoma, raynauds diease.
Term
adrenergic antagonists SE/AR
Definition
orthostatic hypotension, reflex tachycarida, nasal congestion, inhibition of ejaculation.
Term
adrenergic antagonists medications
Definition
Prozosin (Minipress) used for HTN
Terazosin (Hytrin) HTN, BPH
Doxazosin (Cardura) HTN, BPH
Phentolamine (Regitine) pheochromocytoma, prevention of tissue necrosis following extravasation of caustic medications to the subcutaneous tissue (Dopamine, Norepi)
Term
Nicotine
Definition
nictonic receptors being activated, dosage in smoking is low and will activate, higher doses cause nicotonic blockade (treated as a poison), crosses cell memb easily and is widely distributed. easily crosses placenta and mammary barriers. causes rapid and profuse release of norepi in body.
Term
Nicotine absorption
Definition
depends on delivery. smoking 90-98% in pulmonary system, chew/cigar in oral cavity
Term
Nicotine cardiac effects
Definition
+ chronotropic, inc BP, inc cardian work.
Term
Nicotine GI effects
Definition
dec gastric secretions, appetite sppresants, inc tone and motility of GI smooth muscle, can promote vomitting.
Term
Nicotine CNS effects
Definition
stimulant. tremors, facilitates memory, improves cognitive function, reduces aggresion and suppresses appetite
Supporting users have an ad free experience!