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Wiggers Diagram

Wiggers Diagram Intracardiac Pressures

QuestionAnswer
The pressure of the Aorta in Systole? 110-130 mmHg
What is the pressure of the Aorta in Diastole? 70-80 mmHg
What is the Systolic pressure of the Pulmonary Artery? 15-25 mm Hg
What is the Diastolic range of the Pulmonary Artery? 8-15 mm Hg
The Left Atrium's MEAN pressure is what? 4-12 mm Hg
The Left Ventricle's Systolic pressure measured in mmHg? 110-130 mm Hg
4-12 mm Hg in DIASTOLIC The Left Ventricle
15-25 mm Hg SYSTOLIC Right Ventricle
Diastolic pressure of Right Ventricle in Diastole 0-8 mm Hg
Mean Pressure of 0-8 mm Hg Right Atrium
What pressure gradient does blood flow? High to low
What happens to the flow of blood as the pressures equilibrate? Decreases
Systemic Arterial System Organs of the body receive blood via this system
The cardiac valves open and close due to Change in pressure
At the onset of the QRS complex what do the AV valves do? The atrioventricular valves close
Ventricular pressure exceeds atrial pressure at what part on the EKG? QRS complex
When do the atrioventricular valves close? When ventricular pressure exceeds atrial pressure
The atrioventricular valves open at what part on the EKG? End of the T wave
What do the atrioventricular valves do when ventricular pressure drops below atrial pressure? Open
Atrioventricular valve that opens first and closes last Tricuspid valve
Atrioventricular valve that opens last and closes first Mitral Valve
Semilunar valve that opens first and closes last Pulmonic Valve
Semilunar valve that opens last and closes first Aortic Valve
The ventricular pressure drops below arterial pressure End of ventricular systole
The Semilunar valves close when Ventricular pressure drops below arterial pressure
The Semilunar valves open when Ventricular pressure exceeds arterial pressure
Ventricular pressure exceeds arterial pressure In early ventricular systole
The Semilunar valves close At the end of ventricular systole
In early ventricular systole The semilunar valves open
Ventricular Diastole represents The period of time the ventricles are filling
Between the end of the T wave and the onset of the QRS complex Ventricular Diastole
Approximately 70% of the Diastolic filling occurs during Early Ventricular Diastole
Mid-Diastole when there is equilibration of ventricular and atrial diastolic pressures with little filling of the ventricles occurring during this time period Diastasis
Late diastolic filling due to atrial contraction as marked by the P wave of the EKG Atrial Systole
Atrial Systole Contributes about 30% to ventricular diastolic filling.
Isovolumic contraction also know as Pre-ejection period
An early systolic event occurring between atrioventricular valve closure and semilunar valve opening Isovolumic contraction
Isovolumic contraction An increase in ventricular pressure with no change in ventricular volume
Ventricular SYSTOLE occurs between the onset of ______ and end of ________ QRS, the T-wave
Ventricles are ejecting blood into the great arteries Systolic ejection period or time
When the ventricles are ejecting blood into the great arteries Ventricular systole occurs
Ventricular volume is lowest at Peak ventricular SYSTOLE
At peak ventricular systole ventricular volume is lowest
Isovolumic relaxation represents Early ventricular diastole
Begins with the closure of the semilunar valves to the opening of the atrioventricular valves Isovolumic relaxation
Early ventricular diastole Begins with the closure of the semilunar valves to the opening of the atrioventricular valves
During isovolumic relaxation The ventricular pressure is decreasing with no change in ventricular volume
The ventricular pressure is decreasing with no change in ventricular volume During isovolumic relaxation
Blood flows from High pressure to low pressure
High to Low Flow of blood
Atrioventricular valve regurgitation Will increase the atrial "v" wave
An increase in atrial "v" wave Shows atrioventricular valve regurgitation
Shows an increase in atrial "a" wave Atrioventricular valve stenosis
CHF, constrictive pericarditis, restrictive cardiomyopathy and diastolic dysfunction Will increase ventricular diastolic pressure
Will increase pulmonary artery pressures Left to right shunts, pulmonary hypertension or left heart disease
S1 is the first normal heart sound and is created by The closure of the atrioventricular valves at the onset of the QRS complex where ventricular pressure exceeds atrial pressure
The closure of the atrioventricular valves at the onset of the QRS complex where ventricular pressure exceeds atrial pressure S1
S2 is the second normal heart sound and is created by closure of the semilunar valves At the end of the T-wave where arterial pressure falls below ventricular pressure
At the end of the T-wave where arterial pressure falls below ventricular pressure, this is created by closure of the semilunar valves S2
Created by: CVTMom