Hemodynamics

Question 1

What’s normal CO?

Answer 1

4-8 L/min

Question 2

What chamber of the heart does CO provides info about?

Answer 2

LV function

Question 3

What 5 factors determine CO?

Answer 3

Preload, Afterload, Ventricular Contractility, Ventricular Distensibility, HR

Question 4

What’s a normal range for Cardiac Index (CI)?

Answer 4

2.2-4 L/min

Question 5

What does a CI

Answer 5

Hypoperfusion to tissues

Question 6

What does a CI

Answer 6

Cardiogenic Shock

Question 7

When may you see a CI>4.3 L/min?

Answer 7

Early stages of septic shock or when the heart is compensating for increased metabolic demands (thyrotoxicosis, fever, exercise, certain tumors)

Question 8

What’s a normal range for Stroke Volume (SV)?

Answer 8

60-150 mL/beat

Question 9

What 3 factors determine Stroke Volume?

Answer 9

Preload, Afterload, Myocardial Contractility

Question 10

What hemodynamics represent preload?

Answer 10

CVP, PCWP, PAD

Question 11

What hemodynamics measure filling pressure/volume of the R Heart?

Answer 11

CVP

Question 12

What hemodynamics measure filling pressure/volume of the L Heart?

Answer 12

PCWP and PAD

Question 13

What’s the CVP range?

Answer 13

2-8 mm Hg

Question 14

What’s a normal wedge?

Answer 14

6-12 mm Hg