Hemodynamics

Question 1

MAP normal range

Answer 1

80-100 mm Hg

Question 2

Normal HR Range

Answer 2

60-80bpm

Question 3

Normal CVP Range

Answer 3

2-6 mm Hg

Question 4

Normal SVR Range

Answer 4

800-1200 dyn•s/cm3

Question 5

Normal CO

Answer 5

4-7 L/min

Question 6

Normal CI

Answer 6

2.8-3.6 L/min/m2

Question 7

Pulmonary Artery Pressure

Answer 7

15-30/5-15

Question 8

Pulmonary Capillary Wedge Pressure

Answer 8

4-12 mm Hg

Question 9

Measure of Preload

Answer 9

CVP

Question 10

Measure of after load

Answer 10

SVR

Question 11

Measure of CO

Answer 11

Cardiac Index

Question 12

Measure of contractility

Answer 12

LVEF

Question 13

Normal LVEF

Answer 13

50-70%

Question 14

Normal SaO2

Answer 14

95-100%

Question 15

Normal SvO2

Answer 15

70-75%

Question 16

MAP Equation

Answer 16

{(2 x DBP) + SBP}/ 3

Question 17

BP equation

Answer 17

(HR x SV) x SVR

Question 18

Hemodynamics of Hypovolemic Shock

Answer 18

Decreased CVP
Increased HR
May have increased LVEF
Increased SVR

Question 19

Common Causes of Hypovolemic Shock

Answer 19

Hemorrhage
Sustained fluid loss without repletion
Fluid shift from intravascular to tissue-> “third spacing”

Question 20

Treatment of Hypovolemic shock

Answer 20

Control bleeding, fluid replacement, blood products

Question 21

Hemodynamics of Distributive shock

Answer 21

May have decreased CVP
Increased HR
Increased LVEF
Decreased SVR

Question 22

Causes of Septic distributive shock

Answer 22

Sepsis
Anaphylaxis
Neurogenic shock after CNS or spinal cord injury

Question 23

Treatment of distributive shock

Answer 23

Antibiotics for sepsis
Epi for anaphylaxis
Fluid replacement
Vasopressors 
Intotropes
Steroids
Atropine

Question 24

Hemodynamics of Cardiogenic shock

Answer 24

Increased CVP
Increased HR
Decreased contractility
Increased/decreased SVR

Question 25

Causes of Cardiogenic shock

Answer 25

Acute MI Heart Failure Pulmonary hypertension Valvular disease

Question 26

Treatment of Cardiogenic shock

Answer 26

Early, revascularization, restore euvolemia, inotropes, vasopressors, mechanical support if needed

Question 27

What is obstructive shock?

Answer 27

Decreased preload leading to low CO

Question 28

Causes of obstructive shock

Answer 28

Massively PE, cardiac tamponade, tension pneumothorax

Question 29

Treatment of obstructive shock

Answer 29

Rapid correction of cause for obstruction-> thrombolytics, chest tube placement, surgical intervention

Question 30

Colloid doses are how much reduced compared to crystalloids?

Answer 30

1/5th

Question 31

Beta 1 location

Answer 31

Cardiac tissue; increased contractility and heart rate

Question 32

Beta 2 tissues

Answer 32

Bronchioles; bronchdilation Peripheral vascularture; vasodilation

Question 33

Alpha 1 tissue and effect

Answer 33

Peripheral vasculature; vasoconstriction and increased BP

Question 34

Alpha 2 tissue and effect

Answer 34

Peripheral vasculature; vasoconstriction and increased BP