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Adv Med > Cardio Vascular System > Flashcards

Cardio Vascular System Flashcards

1
Q

What does the SA node (primary pacemaker) due?

A

The Sinoatrial node starts the heart contraction of atria & starts the AV node

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2
Q

What does the AV node due?

A

The atrioventricular node delays the signal for contraction and sends a signal the bundle of his

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3
Q

What is the bundle of his?

A

The bundle of his is the splits into the left and the right side and leads to the perkinje fibers

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4
Q

What is the function of the right side of the heart?

A
  • pulls the blood from your body
  • the blood goes from your heart to your lungs
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5
Q

What is the function of the left side of the heart?

A
  • takes oxygenated blood from lungs to body
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6
Q

What is left congestive heart failure?

A

blood pooling in the lungs, while laying down blood fills the alveoli

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7
Q

What is right congestive heart failure?

A
  • adema, swelling of the extremities
  • increase clots, increase cerebrovascular accident (stroke), increase MI (heart attack)
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8
Q

Symptoms of LCHF?

A

coughing, shortness of breath, dizzy/lightheaded, fatigue/tired, increased heart rate

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9
Q

Symptoms of RCHF?

A

shortness of breath, rapid heart rate, sweating, dizzy/lightheaded, fatigue/tired

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10
Q

What does the cardiac nerve do?

A

the cardiac nerve speeds up the contraction of the heart

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11
Q

What does the vagus nerve do?

A

the vagus nerve slows down the contraction of the heart

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12
Q

What is LBB?

A

LBB is left bundle branch, which comes from the bundle of his

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13
Q

What is RBB

A

RBB is right bundle branch which comes from the bundle of his

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14
Q

What does the LBB and RBB turn into?

A

the LBB and RBB split into perkenji fibers

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15
Q

What is an EKG/ECG?

A

an electrocardiogram that records the electrical signals or impulses in the heart

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16
Q

Where can you get and EKG/ECG?

A

hospitals, doctors offices, operating rooms, ambulances

17
Q

What does an EKG/ECG detect?

A

abnormal heart rhythm, coronary heart disease, if you have had a previous heart attack ,if you are currently having a heart attack

18
Q

What tells you someone has had a heart attack?

A

the patient will have elevated enzymes in the blood stream

19
Q

What is the biggest cause to arrythmia?

A

chemo

20
Q

What is the doctor most likely to recommend if the patients symptoms come and go?

A

doctor might recommend continuous monitoring like wearing a small patch for 24-48 hours, or a monitor they wear for 30 days but only activates for a few minutes when they are having symptoms

21
Q

What kind of diets do cardiac patients have?

A

cardiac patients have low salt diets to help lower their blood pressure

22
Q

Where does the positive nerve impulse come from?

A

the front of the heart, the ventricles

23
Q

Where does the negative nerve impulse come from?

A

the back of the heart, the atria

24
Q

What is the order the electrical impulses goes through?

A

SA node -> atria -> AV node -> bundle of his -> left and right bundle branches -> ventricles

25
Q

What is the P wave?

A

the depolarization of the left and right atrium and corresponds to atrial contraction

26
Q

What are the QRS wave?

A

the rapid succession, electrical impulses that spread through ventricles and ventricular depolarization

27
Q

What is the T wave?

A

the ventricular repolarization, also when the sodium and potassium pump kicks in and gets everything back to normal

28
Q

How do you calculate a HR on the EKG?

A

HR = 300/number of large boxes between waves

29
Q

What is arrhythmia?

A

when the HR is too fast, too slow, irregular, fluttering or racing, if it is happening frequently it can be life threatening

30
Q

How do you control arrhythmia?

A

use medication to control, if medication doesn’t work then use electrical shock to get patient heart back into normal rhythm

31
Q

What is atrial fibrillation?

A

the irregular beating of heart, too fast, too slow, in the upper chambers of the heart (atria) causes it to not be coordinated with the ventricles - symptoms are SOB, fatigue (palpitations) - treatment is drugs, electrical shock, ablation

32
Q

What is ventricular fibrillation?

A

a rapid HR in the bottom chambers, could be caused if you have previously had a heart attack, or drug overdose, the bottom chambers quiver and shake

Adv Med (21 decks)

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