PETAL Insights · Early Screening
The Window That Closes
Select a path to see how time shapes outcome
Ignored
Symptoms dismissed, no action taken
Delayed
Waited 48–72 hours before seeking care
Acted promptly
Sought assessment within 24 hours
Symptom onset
24 hours
48 hours
72 hours +
Choose a path above
to see how the timeline unfolds
Illustrative timelines only · Individual cases vary · Seek professional evaluation
PETAL Insights · Shanghai Chest Hospital