Cardiac Drugs Flashcards

1
Q

What does beta 1 do?

A

Increases Hr

Force contraction

Increase conduction of impulses to the AV node.

Kidneys:

-releases renin

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2
Q

What body parts do beta 1 act on?

A

Kidney and heart

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3
Q

What happens when renin is released?

A

Causes vasoconstriction

Retention of fluid

Hypertension- increase BP

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4
Q

What part of the body does beta 2 effect?

A

The lungs and kidney

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5
Q

What does beta 2 do to the lungs?

A

Bronchial dilation

Relaxes the uterine muscle during labor

Vasodilation for anaphylaxis

Glucogenolysis

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6
Q

How does beta 2 affect the kidneys?

A

Causes the release of dopamine which works as a diuretic.

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7
Q

How does dopamine affect the kidneys?

A

Dilates the renal blood vessels

  • allows for excretion of waste
  • diuretic
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8
Q

What electrolyte can cause dysthymia if deficient?

A

Hypokalcemia

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9
Q

What 4 drugs treat dysrhythmias?

A

Sodium channel blockers
Calcium channel blockers
Potassium channel blockers
Beta blockers

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10
Q

What does alpha 1 do?

What happens when you block alpha 1?

A

Vasoconstricts

Causes ejaculation of blood from the heart.

Blocking: vasodilates

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11
Q

What are the two main sodium channel blockers?

A

Lidocaine

Quinidine

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12
Q

What is quinidine used for?

A

Treatment of dysrhythmias

Decreases myocardial excitability.

Slows the conduction velocity

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13
Q

Major side effects of quinidine?

A

Can cause bradycardia

Hypotension

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14
Q

What do sodium channels do to the heart

A

Sodium channels affect the conduction or impulse of the heart which tells the muscles to contract.

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15
Q

Side effects of lidocaine

A

Hypotension

Bradycardia

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16
Q

What type of drug ends in olol?

A

Beta blockers

17
Q

What two type of heart conditions do beta blockers treat?

A

Dysrhythmias and hypertension

18
Q

What do beta blockers do?

A

Vasodilates

Decreases heart rate

Decreases heart contraction

Hypotension

19
Q

What chemical signals in the body do beta blockers block?

A

Norepinephrine and epinephrine

20
Q

What is a cardio selective beta blocker?

A

Beta 1

M.A.E

21
Q

What does MAE stand for?

A

Metroprolol

Atenolol

Esmolol

22
Q

What are three types of vasodilator that are considered third generation?

A

Beta 1, beta 2, alpha 1 blockers

23
Q

3 examples of first generation beta blockers?

A

Propranolol, sotalol, timolol

24
Q

3 types of second generation beta blockers?

25
What are two Third generation beta blockers
Treats hypertension Carvedilol Labetalol
26
Main side effect of calcium channel blockers?
Constipation Treat: five fluids and fiber
27
Why do we want to vasodilates the arterioles?
Vasodilaton causes a decrease in after load which reduces heart failure by decreasing stiff and hard vessels so blood can perfuse through the body.
28
What does dilation of the arterioles do to the heart?
Decreases the after load
29
Adrenergic receptors are? Where are they located?
NE and EPI Adrenal medulla
30
What does dopamine mean?
It is a diuretic for the kidneys Vasodilator of the blood vessels
31
What type of receptor is dopamine?
Beta 2
32
What drug dilates the veins of the heart?
Nitroglycerin
33
What drug dilated the arterioles?
Hydralazine
34
What drug dilates both arterioles and veins
Prazosin