1,329 calculators and references across 60 specialties, with formula confidence shown up front.
: Explanation and Clinical Context The Padua Prediction Score is a validated clinical tool used to estimate the risk of venous thromboembolism (VTE) in hospitalized medical patients. Each risk factor is assigned a specific point value based on its contribution to VTE risk. High-risk patients (score >4) are candidates for thromboprophylaxis, whereas low-risk patients (score <4) usually do not require routine prophylax
PERC Rule (Pulmonary Embolism Rule-out Criteria): Explanation and Clinical Context The PERC Rule is a clinical decision tool used to identify patients with a very low probability of pulmonary embolism (PE), in whom further diagnostic testing can be safely avoided. It includes 8 criteria: age > 50 years, heart rate > 100 bpm, oxygen saturation < 95%, prior history of PE or DVT, recent surgery or trauma, hemoptysis, es
PRECISE DAPT Score Clinical Explanation and Context The PRECISE DAPT Score is a validated clinical tool designed to estimate bleeding risk in patients undergoing dual antiplatelet therapy following percutaneous coronary intervention. The score includes age, hemoglobin, white blood cell count, creatinine clearance, and history of prior bleeding, which together reflect hematologic status, renal function, and vulnerabil
PROTECHT Score: Explanation and Clinical Context The PROTECHT Score is a validated risk assessment model for predicting chemotherapy-associated venous thromboembolism (VTE) in patients with active cancer. It incorporates three key variables: primary tumor site (high-risk: pancreatic or gastric), history of previous VTE, and use of platinum-based or gemcitabine chemotherapy. Points are assigned to each variable (tumor
Pulmonary Embolism Severity Index (PESI): Explanation and Clinical Context PESI is a validated risk stratification tool designed to estimate 30-day mortality in patients with acute pulmonary embolism. It incorporates 11 variables, including age, sex, comorbidities (cancer, heart failure, chronic lung disease), vital signs (heart rate, blood pressure, respiratory rate, temperature), altered mental status, and oxygen s