Inducing syncope: the fainting lark
When seeing patients with syncope, it is important to know what a syncope looks like. The videos below are part of a study by Lempert et al. (1994). “Syncope: a videometric analysis of 56 episodes of transient cerebral hypoxia”. The subjects are medical students performing the fainting lark.
The fainting lark consists of:
- Rising from squatting
During the fainting lark blood pressure drops markedly and the subjects lose consciousness. When in the supine position blood pressure restores and consciousness is regained.