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Pharm Unit 19

SPC Pharmacology Unit 19 Exam 6

QuestionAnswer
What are the 3 functions of Cardiac Output? 1. Pulse Rate (How fast) 2. Stroke Volume (How much Volume) 3. Vascular Resistance (Vessel Tone)
What are the two factors of cardiac medication? Pulse Rate/Stroke Volume
What is Pulse Rate? Number of Contractions per/min. Deals w/ time "Chronotropic"
What is Stroke Volume? The amount of blood moved per/contraction. Deals w/ force "Ionotropic"
What type of medication is Glycosides? Positive Ionotropic Medication
What does Cardiac Glycosides do? Increases free Ca+ within the myocardium which promotes stroke volume (contractility)
What are the 3 Glycoside medications? 1. Digitalis 2. Lanoxin 3. Digitoxin
Digitalis comes from what? Derived from the plant, Foxglove. High levels of Potassium (K+) reduces effects. Low levels of Potassium (K+) makes it toxic.
Dobutamine is also know as what? Dobutrex
What is the indication for Dobutamine? Acute Heart Failure
How is Dobutamine related to receptors? Non-Selective Beta 1 & Beta 2 Agonist Beta 1 improves stroke volume and Beta 2 is a Vasodilator
Dobutamine ultimately does what? Reduces SVR (Systemic Vascular Resistance
Dopamine is also known as what? Intropin
T/F There is a low, moderate, and high dose of Dopamine? True
Dopamine can be used to treat heart failure by acting as what? Cardiac Stimulate (given in moderate doses)
Moderate dose of Dopamine is what in relation to receptors? Beta 1 Agonist
T/F Increased Ionotropic and Chronotropic of the Myocardium with moderate dose of Dopamine? True
Created by: Langhout1418
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