Cardiac Surgery

Question 1

Leading contributor to a CABG

Answer 1

Atherosclerosis (CAD)

Question 2

Amount of blood prepared for CABG procedure…

Answer 2

6 Liters w/ T&C

Question 3

% mortality with heart surgery

Answer 3

1-2%

Question 4

Heart & Lung machine can lead to…

Answer 4

massive edema

Question 5

Heparin & HL Machine:

Answer 5

100% heparinized and reversed with protamine before leaving OR

Question 6

What does the HL machine hook up to?

Answer 6

Cannulate Inferior/Superior Vena Cava & Aorta

Question 7

Body temp for CABG procedure

Answer 7

35 degrees centigrade

Question 8

Cardioplegia:

Answer 8

put K+ in and around the heart so that it stops

Question 9

MIDCAB Procedure:

Answer 9

CABG that is only on one vessel.

Question 10

Hospital stay for MIDCAB:

Answer 10

3 day recovery

Question 11

Open Heart Surgery Defib

Answer 11

15-20 joules

Question 12

CABG Complications

Answer 12

Low CO
Acute MI
Dysrhythmias (A-Fib common)
Hemorrhage
PE
Electrolyte Imbalances
Cerebral Infarction
ARDS
Renal Failure
Cardiac Tamponade

Question 13

Cardiac Tamponade:

Answer 13

fluid build up in pericardial sac putting too much pressure on the heart

Question 14

Cardiac Output Normal

Answer 14

4-8 L/min

Question 15

Stroke Volume Normal

Answer 15

60-130ml/beat

Question 16

Formula for CO

Answer 16

HR x SV

Question 17

Dopamine Low Dose

Answer 17

1-5 mcg/kg/min

Question 18

Dopamine Low Dose Action:

Answer 18

^ renal artery perfusion

Question 19

Dopamine Moderate Dose

Answer 19

5-10 mcg/kg/min

Question 20

Dopamine Moderate Dose Receptor

Answer 20

Beta

Question 21

Dopamine Moderate Dose Action

Answer 21

^ CO by ^HR & Contractility

Question 22

Dopamine High Dose

Answer 22

> 10 mcg/kg/min

Question 23

Dopamine High Dose Receptor

Answer 23

Alpha

Question 24

Dopamine High Dose Action

Answer 24

Vasoconstriction (elevated BP)

Question 25

Dobutamine Action:

Answer 25

^ contractility and CO without ^ HR

Question 26

Dobutamine Dosage:

Answer 26

2-20 mcg/kg/min

titrated to patient response

Question 27

Valve Replacement:

Biological

Answer 27

Human
Porcine
Bovine

Question 28

Valve Replacement:

Mechanical

Answer 28

Ball-n-cage

Leaflet

Question 29

Intra-Aortic Balloon Pump placed via:

Answer 29

femoral artery

Question 30

IABP inflates when ventricles are _________.

Answer 30

resting

Question 31

IABP assists to refill the ________________.

Answer 31

Coronary arteries

Question 32

IABP is a:

Answer 32

Counter-pulsation device

Question 33

IABP Indications:

Answer 33

LV Failure
Mechanical Dysfunction
Uncontrolled ventricular arrhythmias
Unstable Angina
Septic/Cardiogenic Shock
Prophylaxis