Test 1 Flashcards
Normal Cardiac Output (CO)
4-8 L/min
Preload definition
End diastolic VOLUME that stretches the right or left ventricle of the heart
Afterload definition
PRESURE/RESISTANCE against which the heart must work to eject blood during systole
Contractility definition
Muscle function presence
Normal Cardiac Index (CI)
2.5-4
Mean Central Venous Pressure (CVP) in right atria
2-10 mmHg
Normal SVR
800-1200
Normal PVR
100-250
MAP Formula
(2 x diastolic + systolic)/3
Normal MAP
70-100
Phlebostatic axis is where?
4th intercostal space, midaxillary line
Dicrotic Notch on wave form represents:
Closing of aortic valve
Pulmonary Artery Catheter (AKA Swan Ganz) measures:
Left heart pressures
Pulmonary artery diastolic pressure (PAD, PAOP) represents pressure on which side of the heart?
Left side
Pulmonary artery systolic pressure (PAS) represents pressure on which side of the heart?
Right side
What causes increased CVP?
Over-hydration, HF, positive pressure breathing (anything ventilator related)
What causes decreased CVP?
Hypovolemia, negative pressure breathing (retractions while breathing)
Normal Pulmonary Artery Pressure
Systolic: 20-30
Diastolic: 8-12