View source for Template:PERC rule

<quiz display=simple>
{Which of the following are true:
|type="[]"}

+Age <50yr
+Pulse ox >94% (room air)
+HR <100
+No prior PE or DVT
+No recent surgery or trauma (within prior 4wk)
+No hemoptysis
+No estrogen use
+No unilateral leg swelling
||In patients with low suspicion for [[PE]] (clinician's best-guess pre-test probability is <15%) AND all are true ("PERC negative"), only 0.9% had [[PE]] (n=7527) and it can be ruled-out without further testing (i.e. no need for d-dimer)<ref>Kline JA, et al. Clinical criteria to prevent unnecessary diagnostic testing in emergency department patients with suspected pulmonary embolism. J Thromb Haemost 2004; 2: 1247–55.</ref><ref>Kline JA, et al. Prospective multicenter evaluation of the pulmonary embolism rule-out criteria. J Thromb Haemost 2008; 6: 772–80. (PMID: 18318689).</ref>