What Is Perc Negative
The Perc Rule Is a “Rule-Out” Tool – All Variables Must Receive a “No” to Be Negative. the Test Is Unidirectional: While Perc Negative Typically Allows the...
The PERC Rule is a “rule-out” tool – all variables must receive a “no” to be negative. The test is unidirectional: while PERC negative typically allows the clinician to avoid further testing, failing the rule doesn’t force the clinician to order tests. As a rule-out criteria, PERC is not meant for risk-stratification.
What is PERC positive?
Pulmonary embolism workup can be ruled out if (1) none of the above eight variables is positive and (2) there is a less than 15% (very low) pretest probability that the patient has a pulmonary embolism. A PERC evaluation is considered positive if any one of the eight criteria are met.
What is the mnemonic for had clots?
Here they are, using the mnemonic HAD CLOTS: Hormones – Is the patient taking exogenous estrogen? Age – Is the patient >/= 50 years old? DVT/PE – Does the patient have prior history of DVT/PE?
Maya is a hardware enthusiast who tests and reviews smart home devices, smartphones, wearables, and audio gear. She focuses on practical consumer value and build quality.
