Hemodynamics

Question 1

Preload

Answer 1

Myocardial Muscle Stretch
Measured by PA pressure
2-8 mmHg

Question 2

Afterload

Answer 2

Resistance to flow, arterial BP

Measured by BP

Question 3

CVP

Answer 3

Indicates Fluid Status
Measures volume returning to the heart
Similar to Preload (RAP)

Question 4

Lasix

Answer 4

Duretics

Question 5

Hetastarch

Answer 5

Volume Expander

Question 6

Arterial Lines

Answer 6

Risk for air embolus / infection

Radial or Femoral artery
NO MEDS THROUGH ART LINES

Question 7

Nitroglycerin effects and SE

Answer 7

Vasodilation

SE: Hypotension

Question 8

Cardiac Output

Answer 8

Amount of blood ejected by heart per minute
CO = SV x HR
(SV = PL + AL + Contract)

4-8 L/min

Question 9

Phlebostatic AXis

Answer 9

4th ICS MAL

level of right atrium

Question 10

Allen’s Test

Answer 10

Done prior to an art Line insertion

Question 11

Contractility

Answer 11

Cardiac’s capacity to contract “ pump” Stretch

Sterling’s Law

Question 12

Pulmonary Arterial Pressure (PAP)

Answer 12

measures pressure of volume in lung

Question 13

PAWP / PCWP - Wedge

Answer 13

measures volume returning to LV

Dampened - flat lines
Reflects LVEDP - preload
Measures at end of expiration
5 - 12 mmHg

Question 14

Charting

Answer 14

Location, sites, dressing, taped, length of PA, CXR

Zero Lining: upon initial set up, with each leveling following change in position of patient or transducer and 14h

Question 15

Cardiac Index

Answer 15

more specific to patient’s CO adjusted for body size
CI = CO / BSA
2-4 L/min/m2
(if less than 2 = SHOCK)