Cardiology Drugs

Question 0

Class 2 anti arrhythmic drugs

Answer 0

Beta blockers - depress funny current, repolarization time is slightly shortened because calcium is blocked from entry

Also reduce phase 0 in AV node cells

Question 1

Class 1 anti arrhythmic drugs

Answer 1

Na blockers -

Question 2

Class 3 anti arrhythmic drugs

Answer 2

K channel blockers- make repolarization time longer- longer qt interval

Question 3

Class 4 anti arrhythmic drugs

Answer 3

Ca channel blockers

Question 4

Class 1a anti arrhythmic drugs

Answer 4

Quinidine- strong Na channel block, also blocks K channels prolonging repolarization - widening of QRS and longer QT interval

Question 5

Class 1B anti arrhythmic drugs

Answer 5

Lidocaine- weaker blocking of Na channels, speeds up repolarization

Question 6

Class 1C anti arrhythmic drugs

Answer 6

Very strong block of Na channels, repolarization is unchanged - widening of QRS

Question 7

Quinidine

Answer 7

Class 1A anti arrhythmic

Question 8

Lidocaine

Answer 8

Class 1b anti arrhythmic

Question 9

Propranolol

Answer 9

Class 2 anti arrhythmic
Inhibits exercise tachycardia
Allieives angina
Lowers plasma renin activity- anti hypertensive

Question 10

Amiodarone

Answer 10

Class 3 anti arrhythmic
Adverse effects:
Pulmonary fibrosis and photosenitivty

Very long half life- month

Question 11

Verapamil

Answer 11

Class 4a anti arrhythmic

Question 12

Diltiazem

Answer 12

Class 4a anti arrhythmic

Question 13

Adenosine

Answer 13

Class 4b anti arrhythmic

K channel opener- hyper polarization
Anti adrenergic, lowers O2 demand- protection from ischemia

Don’t use in peope with asthma

Question 14

Procainamide

Answer 14

Class 1A anti arrhythmic

Question 15

Disopyramide

Answer 15

Class 1a anti arrhythmic

Question 16

Flecainide

Answer 16

Class 1c anti arrhythmic

Question 17

Encainide

Answer 17

Class 1c anti arrhythmic

Question 18

Dofetilide

Answer 18

Class 3 anti arrhythmic

Question 19

Sotalol

Answer 19

Class 3 anti arrhythmic

Question 20

Bretylium

Answer 20

Class 3 anti arrhythmic

Question 21

Epinephrine

Answer 21

Alpha and beta 1,2 agonist

Question 22

Norepinephrine

Answer 22

Alpha and beta 1 agonist

Question 23

Phenlyephrine

Answer 23

Alpha agonist

Question 24

Isoproterenol

Answer 24

Beta 1,2 agonist

Question 25

Dopamine

Answer 25

Inotropic agent Neurotransmitter in the brain Increase contractile force without increasing the heart rate Can be given to peope with bad Kidney function- increase flow to kidneys At higher doses effects alpha receptors causes vasoconstriction

Question 26

Dobutamine

Answer 26

Inotropic agent

Question 27

Propranolol

Answer 27

Beta 1,2 blocker

Question 28

Phentolamine

Answer 28

Alpha blocker- short acting

Question 29

Phenoxybenzamine

Answer 29

Alpha blocker- long acting

Question 30

Left anterior descending artery

Answer 30

Branches- Diagonal branch Both supply upper portion of left ventricle- anterior wall

Question 31

Left circumflex artery

Answer 31

Moves through atrioventricular groove | Supply lateral wall

Question 32

Right coronary artery

Answer 32

Branch: posterior descending artery Supplies inferior wall

Question 33

Beta 1 receptor location

Answer 33

Heart

Question 34

Beta 2 receptor location

Answer 34

Vessels, | Bronchi

Question 35

Albuterol

Answer 35

Beta 2 agonist

Question 36

Ritodrine

Answer 36

Beta 2 agonist

Question 37

Metoprolol

Answer 37

Beta 1 antagonist

Question 38

Amphetamine

Answer 38

Increases norepinephrine output reverses release of norepinephrine carrier- normally pumps NE into presynapyic cell, now released

Question 39

Cocaine

Answer 39

Inhibits nE transporter back into cell out of synapse

Question 40

Normal pr interval

Answer 40

.12-.2 sec | 3-5 small boxes

Question 41

Normal qrs interval

Answer 41

Less than .1 sec | Less than 2.5 boxes

Question 42

Qt interval

Answer 42

Corrected QT IS QT/ square root of RR Intercal in seconds Normally less than .44 seconds

Question 43

Nitrates

Answer 43

Dilate vein so that more blood is in the veins and less returns to the heart- this lowers preload of heart Can also vasodilator- increase o2 which gets to heart Trigger smooth muscle to produce NO which causes vasodilation

Question 44

Inferior leads

Answer 44

II, III. Avf

Question 45

Anteroseptal leads

Answer 45

V1 and v2

Question 46

Anterior wall

Answer 46

V3 and v4

Question 47

Anterolateral wall leads

Answer 47

Leads v5, v6 I and avl