A TIA is defined as stroke symptoms or signs that resolve within 24 hours (the majority resolve within 1 hour). A TIA is characterised by a sudden, focal neurological deficit that spontaneously resolves.
There are 4 key questions to consider:
If the answer to 1-3 is YES then presume a TIA. If the answer to 4 is YES then consider alternative diagnoses eg syncope, seizure, hypoglycaemia etc.
The ROSIER Scale is a validated screening tool (for patients with symptoms) for diagnosis of TIA/stroke.
NB: Transient loss of consciousness ('blackout') without focal neurological symptoms or signs is NOT a TIA.
Disclaimer: This site is intended to be flexible and frequently updated. While every effort has been made to ensure accuracy, all information should be verified.