The Wells Score for Pulmonary Embolism (PE)

The Wells Score for Pulmonary Embolism (PE)

Introduction The Wells score for PE is a clinical prediction tool used to estimate how likely a patient is to have a pulmonary embolism (PE) before ordering a blood test or imaging. It should not be confused with the Wells score for DVT, which is a separate tool built...
The 4Ts Score for Heparin-Induced Thrombocytopenia (HIT)

The 4Ts Score for Heparin-Induced Thrombocytopenia (HIT)

Introduction The 4Ts score is a bedside clinical prediction tool used to estimate the probability that a patient’s falling platelet count is caused by heparin-induced thrombocytopenia (HIT), rather than one of the many other, more common reasons platelets drop...
The ISTH-BAT (Bleeding Assessment Tool)

The ISTH-BAT (Bleeding Assessment Tool)

Introduction The ISTH-BAT (International Society on Thrombosis and Haemostasis Bleeding Assessment Tool) is a standardized questionnaire used to quantify a person’s lifetime bleeding history. Rather than relying on a clinician’s subjective impression of...
The MPN-SAF Total Symptom Score

The MPN-SAF Total Symptom Score

What Is the MPN-SAF TSS? The MPN-SAF Total Symptom Score (MPN-SAF TSS), also known as the MPN-10, is a short, patient-reported questionnaire used to measure how much a myeloproliferative neoplasm (MPN) is affecting a person day to day. It grew out of the longer...
The Wells’ Score for DVT

The Wells’ Score for DVT

Introduction The Wells’ score is a clinical prediction tool used to estimate how likely a patient is to have a deep vein thrombosis (DVT) before any blood test or imaging is ordered. It works by assigning points to specific findings from the patient’s...
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