Narrowed pulse pressure could help you identify critical bleeding in patients who don’t show obvious signs.

• In a study of 456 blunt trauma patients, 14.3% were flagged for critical hemorrhage based on pulse pressure.
• A pulse pressure of ≤40 mmHg was an independent predictor of critical administration thresholds, with a high odds ratio (5.931 before matching).

This could refine your approach to patient selection in trauma cases.

• For elderly patients, the optimal threshold is ≤41.5 mmHg, achieving an impressive area under the curve of 0.822.