Sokolow-Lyon index:
There are two criteria with these widely used indices:
* Sum of S wave in V1 and R wave in V5 or V6 >/= 3.5 mV (35 mm)
and/or
* R wave in aVL >/= 1.1 mV (11 mm)
Criteria
ACR Criteria for the Classification of Hypersensitivity Vasculitis
Three of the following five criteria were required to meet American College of Rheumatology (ACR) classification criteria for hypersensitivity vasculitis:
Amsel’s Diagnostic Criteria for Bacterial Vaginosis
Three of four criteria must be met; establishes accurate diagnosis of bacterial vaginosis in 90 percent of affected women.
Diagnostic Criteria for Tuberculosis Disease
Definite diagnosis
-
Clinical picture consistent with tuberculosis; bacteriologic confirmation (culture, gene probe/NAA + AFB smear); histologic findings
TIMI Risk Score for ST-Elevation Myocardial Infarction (STEMI)
The TIMI risk score, based upon data from 15,000 patients with an ST segment elevation myocardial infarction eligible for fibrinolytic therapy, is a simple arithmetic sum of eight independent predictors of mortality.
Indications and Contraindications for Tilt Table Testing
Indications
-
Recurrent syncope or single syncopal episode accompanied by physical injury or motor vehicle crash or occurring in a high-risk setting (for example, pilot, surgeon, commercial vehicle driver) and no evidence of structural cardiovascular disease; or presence of structural cardiovascular disease, but other causes of syncope ruled out by diagnostic testing
-
Syncope induced by or associated with exercise
- Further evaluation of patients in whom an apparent specific cause of syncope has been established (for example, asystole, high atrioventricular block) but susceptibility to neurocardiogenic syncope may affect treatment plan
ABCD2 Score for Transient Ischemic Attack (TIA)
A simple score (ABCD2) to identify individuals at high early risk of stroke after transient ischemic attack.
Wells Clinical Prediction Rule for Pulmonary Embolism and Deep Venous Thrombosis
The Wells Clinical Prediction Rule is a diagnostic tool used during review of systems to identify possible pulmonary embolism (PE) and deep vein thrombosis (DVT).
Diagnostic Criteria for Essential Thrombocytopaenia (ET)
Polycythemia Vera Study Group (PVSG) Diagnostic Criteria for Essential Thrombocytopaenia (ET)
All of the following criteria must be fulfilled to make a diagnosis of ET
-
Platelet count greater than 600 x 109/L
-
Hematocrit less than 40 or normal red blood cell mass
-
Stainable iron in the marrow or normal RBC mean corpuscular volume (If these measurements suggest iron deficiency, polycythemia vera cannot be excluded unless a trial of iron therapy fails to increase the red blood cell mass into the polycythemic range.)
-
No Philadelphia chromosome or bcr/abl gene rearrangement
-
Collagen fibrosis of the bone marrow absent or less than one third of the biopsy area without both marked splenomegaly and a leukoerythroblastic blood film
-
No cytogenetic or morphologic evidence for a myelodysplastic syndrome
-
No cause for a reactive thrombocytosis
Diagnostic Criteria for Heparin-Induced Thrombocytopenia (HIT)
Diagnostic Criteria for Heparin-Induced Thrombocytopenia (HIT)
- Heparin exposure >5 days
- Relative thrombocytopenia: decrease in platelet count by 50% from baseline OR absolute thrombocytopenia: decrease in platelet count to less than 100 to 150 x 109/L
- Absence of other causes of thrombocytopenia
- Development of new thrombosis, or extension of pre-existing thrombosis, while receiving heparin therapy
- Confirmation by laboratory testing
- Return to normal platelet count when heparin is discontinued