Syncope Flashcards
1
Q
Define syncope
A
transient loss of consciousness due to cerebral hypoperfusion, rapid onset, short duration with spontanoeous and complete recovery
2
Q
What is a reflex syncope
A
- most common
- fall in MAP
- vagal stimulation
- vasodilation
- decrease in SVR and CO
3
Q
3 types of relfex syncope
A
- vasovagal syncope
- situational syncope
- carotid sinus syncope
4
Q
Explain a vasovagal syncope
A
- most common reflex syncope
- triggered by emotional or orthostatic stress
5
Q
Explain a situation syncope
A
- immediately after a specific trigger
6
Q
Explain a carotid sinus syncope
A
- mechanical manipulation to the neck
7
Q
What is a cardiac syncope
A
- caused by a cardiac event resulting in a sudden drop in cardiac output
- caused by arrhythmias, MI, CVD
- may be during excretion
8
Q
What is postural hypotension
A
Results from failure of Baroreceptor responses to gravitational shifts in blood, when moving from horizontal to vertical position
