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)
Continue reading “Electrocardiographic Diagnosis of Left Ventricular Hypertrophy (LVH)”
Three of the following five criteria were required to meet American College of Rheumatology (ACR) classification criteria for hypersensitivity vasculitis:
Continue reading “ACR Criteria for the Classification of Hypersensitivity Vasculitis”
Three of four criteria must be met; establishes accurate diagnosis of bacterial vaginosis in 90 percent of affected women.
Continue reading “Amsel’s Diagnostic Criteria for Bacterial Vaginosis”
Definite diagnosis
Clinical picture consistent with tuberculosis; bacteriologic confirmation (culture, gene probe/NAA + AFB smear); histologic findings
Continue reading “Diagnostic Criteria for Tuberculosis Disease”
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.
Continue reading “TIMI Risk Score for ST-Elevation Myocardial Infarction (STEMI)”
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
Continue reading “Indications and Contraindications for Tilt Table Testing”
A simple score (ABCD2) to identify individuals at high early risk of stroke after transient ischemic attack.
Continue reading “ABCD2 Score for Transient Ischemic Attack (TIA)”
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). Continue reading “Wells Clinical Prediction Rule for Pulmonary Embolism and Deep Venous Thrombosis”
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
Continue reading “Diagnostic Criteria for Essential Thrombocytopaenia (ET)”
Diagnostic Criteria for Heparin-Induced Thrombocytopenia (HIT)
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