CEN // Cardiovascular Emergencies UPDATED ACTUAL
Questions and CORRECT Answers
Amount of blood ejected from left ventricle each minute
Cardiac output (CO) =
stroke volume (SV) × heart rate (HR)
, The amount of blood ejected from the left ventricle with each
Stroke Volume (SV)
contraction
volume of blood entering ventricles during diastole
Preload
Aka "faucet"
Pressure heart must push against during systole
Afterload
Aka "drain"
What is the "faucet" to the R side Vena cava
of the heart?
What is the "faucet" to the L side Pulmonary circulation (also the "drain" to the R side)
of the heart?
Average pressure in arterial system
MAP =
(2DBP + SBP)/3
Stroke volume will be Preload is low
decreased if: Afterload is high
Preload is (low/high)? Contractility is decreased
Afterload is (low/high)? And vice versa is true
Contractility is
(decreased/increased)?
How is preload measured in the JVD (noninvasive) and Central venous pressure (invasive
R ventricle? measurement in vena cava)
How is preload measured in the Lung sounds (noninvasive) and Pulmonary wedge pressure
L ventricle? (invasive)
How is afterload measured in Pulmonary circulation (PWP)
the R ventricle?
How is afterload measured in MAP
the L ventricle?
Chronotrope Drugs that influence heart rate (via SA node)
Dromotrope Drugs that influence electrical conduction speed (automaticity)
Inotrope Drugs that influence contractility
Vaso __ increase -constrictors
preload/afterload and vaso_____ -dilators
decrease preload/afterload
Wenckebach (2nd degree, Mobitz I)
What type of heart block is this?
2nd degree, mobitz II
What type of heart block is this?
Normal QRS: 0.08-0.12
Normal PR: 0.12-0.2
EKG measurements
Questions and CORRECT Answers
Amount of blood ejected from left ventricle each minute
Cardiac output (CO) =
stroke volume (SV) × heart rate (HR)
, The amount of blood ejected from the left ventricle with each
Stroke Volume (SV)
contraction
volume of blood entering ventricles during diastole
Preload
Aka "faucet"
Pressure heart must push against during systole
Afterload
Aka "drain"
What is the "faucet" to the R side Vena cava
of the heart?
What is the "faucet" to the L side Pulmonary circulation (also the "drain" to the R side)
of the heart?
Average pressure in arterial system
MAP =
(2DBP + SBP)/3
Stroke volume will be Preload is low
decreased if: Afterload is high
Preload is (low/high)? Contractility is decreased
Afterload is (low/high)? And vice versa is true
Contractility is
(decreased/increased)?
How is preload measured in the JVD (noninvasive) and Central venous pressure (invasive
R ventricle? measurement in vena cava)
How is preload measured in the Lung sounds (noninvasive) and Pulmonary wedge pressure
L ventricle? (invasive)
How is afterload measured in Pulmonary circulation (PWP)
the R ventricle?
How is afterload measured in MAP
the L ventricle?
Chronotrope Drugs that influence heart rate (via SA node)
Dromotrope Drugs that influence electrical conduction speed (automaticity)
Inotrope Drugs that influence contractility
Vaso __ increase -constrictors
preload/afterload and vaso_____ -dilators
decrease preload/afterload
Wenckebach (2nd degree, Mobitz I)
What type of heart block is this?
2nd degree, mobitz II
What type of heart block is this?
Normal QRS: 0.08-0.12
Normal PR: 0.12-0.2
EKG measurements
