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CCRN Barrons hemo

CCRN - Barrons hemodynamics

QuestionAnswer
Cardiac output is equal to: heart rate X stroke volume
Stroke volume is dependent on: preload, afterload and contractility of the ventricles of the heart
Normal heart rate 80-100
Normal blood pressure 90/60 - 140/90
Mean arterial pressure (MAP) 70-110
cardiac output 4-8 L/min
Right atrial pressure (RAP) 2-6 mmHg, 3-8cm H2O
Pulmonary artery occlusive (wedge) pressure 8-12 mmHg
Pulmonary artery pressure (PAP) 20/8 - 30/15 mmHg Mean: <20 mmHg
Dobutamine. Positive or negative inotrope? positive inotrope
Dopamine 5-10 mcg/kg/min. Positive or negative inotrope? positive inotrope
Primacor. Positive or negative inotrope? positive inotrope
Epinephrine drip. Positive or negative inotrope? positive inotrope
Beta blockers. Positive or negative inotrope? negative inotrope
Calcium-channel blockers. Positive or negative inotrope? negative inotrope
Norephinephrine. Increases or decreases afterload? increases afterload
Phenylephrine. Increases or decreases afterload? increases afterload
High-dose dopamine. Increases or decreases afterload? increases afterload
Epinephrine drip. Increases or decreases afterload? increases afterload
Nitroprusside. Increases or decreases afterload? decreases afterload
ACE inhibitors. Increases or decreases afterload? decreases afterload
Hydralazine. Increases or decreases afterload? decreases afterload
Calcium-channel blockers. Increases or decreases afterload? decreases afterload
IABP. Increases or decreases afterload? decreases afterload
Nitroglycerine (high doses). Increases or decreases afterload? decreases afterload
Crystalloids. Increases or decreases preload? increases preload
Colloids. Increases or decreases preload? increases preload
Pressors. Increases or decreases preload? increases preload
Diuretics. Increases or decreases preload? decreases preload
Nitrates. Increases or decreases preload? decreases preload
Nitroprusside. Increases or decreases preload? decreases preload
Nesiritide. Increases or decreases preload? decreases preload
Morphine. Increases or decreases preload? decreases preload
SvO2 normal 60 - 75%
Created by: leidsmoe