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Table 2 PERC criteria for the patients with suspected PE

From: The use of clinical decision rules for pulmonary embolism in the emergency department: a retrospective study

1.Item

No

n

(%)

1

Age ≥ 50 years

230

(65.2)

2

Heart rate ≥ 100

182

(51.6)

3

Oxygen saturation on room air < 95%

275

(77.9)

4

Unilateral leg swelling

335

(94.9)

5

Hemoptysis

338

(95.8)

6

Recent surgery or trauma

318

(90.1)

7

Prior PE or DVT

300

(85.0)

8

Hormone use

346

(98.0)

Overall

49

(13.9)

  1. PE pulmonary embolism, DVT deep vein thrombosis