Shock & Haemodynamic monitoring Flashcards
1
Q
what are the consequences of a high SVR ?
A
- High MAP
- Low CO
2
Q
What is MAP ?
A
CO x SVR
3
Q
What are the causes of low BP?
A
- Low CO
- Loss of peripheral vascular resistance
4
Q
What is CO?
A
SV x HR
5
Q
Tachycardia is a compensatory mechanism for what variable
A
SV due to increased diastolic filling
6
Q
A
7
Q
Sympathetic effect on beta receptor?
A
- Increased HR
- Increased contractility
- Increased speed of AV conduction
8
Q
A
9
Q
Parasympathetic effect on muscarinic receptors?
A
- Decrease HR
- Decrease contractility
- Decrease speed of AV conduction
10
Q
Sympathetic effect on arterial vasculature?
A
- Beta = dilation
- Alpha = Constriction
11
Q
Pressure difference between the arterial and pulmonary circulation?
A
Pressure in the arterial circulation is 6 times that of the pulmonary circulation
12
Q
Frank starling curve?
A
- Increase in preload
- Increase LVEDV
- Increase SV
Further increases in LVEDV will not lead to increases in SV
13
Q
The venous return is always equal to?
A
Cardiac output if no change in circulating volume
14
Q
Number of ATP produced during aerobic and anaerobic respiration ?
A
- Aerobic - 34
- Anaerobic - 2
15
Q
Types of shock?
A
- Hypovolaemic
- Distributive
- Cardiogenic
- Obstructive
