2 results
The pulmonary embolism rule-out criteria (PERC) was created to reduce testing in patients who have a
pulmonary embolism rule-out ... criteria (PERC) ... published on this score ... #Diagnosis #EM # ... IM #PERC #Rule #
Canadian CT Head Rule 

CT head is only required for minor head injury patients 
with any
CT head is only required ... for minor head ... GCS score < 15 at ... elevation) #Diagnosis ... #Criteria