Regulation of the Cardiac Output Flashcards
1
Q
Describe First Degree Heart block
A
There is an AV block - AV conduction is lengthened and there is an extended PR interval.
2
Q
Describe Second Degree Heart block
A
PQ interval is longer and QRS complex sometimes does not follow P wave
3
Q
Describe Third Degree Heart block
A
Atria and ventricles are depolarising independently
4
Q
What is cardiac output dependent on?
A
Heart rate and Systolic Volume
5
Q
What is systolic volume dependent on?
A
End diastolic volume and end systolic volume
6
Q
What is end diastolic volume?
A
The volume of heart within the ventricles before contraction
7
Q
What is end systolic volume?
A
The volume of blood that remains in the heart after ejection
8
Q
What are positive inotropic agents?
A
Increase contractility
9
Q
What are negative inotropic agents?
A
Decrease contractility
