Medical Calculator – SonDoctor.com × BUN / Creatinine Ratio Calculator BUN (mg/dL) : Creatinine (mg/dL) : BUN-to-Cr ratio Normal: about 12 ~ 20 – Low : ATN, Low protein intake, Starvation, Severe liver disease – High : Prerenal uremia, High protein intake, GI bleeding – High with elevated Cr : Post-renal obstruction, Prerenal uremia with … Read more
Medical Calculator – SonDoctor.com × RFI Calculator (Renal Failure Index) RFI = Urine Na / ( Urine Cr / Serum Cr) Urine Sodium (mmol/L) : Urine Creatinine (mg/dL) : Serum Creatinine (mg/dL) : RFI < 1 : Prerenal Azotemia RFI > 1 : Intrinsic Renal Azotemia
Medical Calculator – SonDoctor.com × AUB-HAS2 Cardiovascular Risk Index Evaluate preoperative cardiovascular riskAUB(American University of Beirut)Automatically calculated when clicking items History of Heart Disease* Symptoms of Heart Disease (Angina or Dyspnea) Age ≥ 75 Hemoglobin <12 g/dL Vascular Surgery Emergency Surgery *Heart disease : Myocardial infarction, Coronary angioplasty, Cardiac surgery, Congestive heart failure, Atrial fibrillation, … Read more
Medical Calculator – SonDoctor.com × HAS-BLED score Calculator Assessment of bleeding risk with anticoagulation in atrial fibrillation patients. Click the relevant items and the score will be calculated automatically. H : Hypertension* (1 point) A : Abnormal Renal function* (1 point) A : Abnormal Liver function* (1 point) S : Stroke (1 point) B : … Read more
Medical Calculator – SonDoctor.com × CHA2DS2-VA score Calculator Determine whether to start anticoagulation therapy in patients with atrial fibrillation. Click the applicable items and the score will be calculated automatically. C : Congestive heart failure/LV dysfunction* (1point) H : Hypertension [or taking antihypertensive medication] (1point) A2 : Age 75 years or older (2points) D : … Read more
Medical Calculator – SonDoctor.com × CHA2DS2-VASc score Calculator Determine whether to start anticoagulation therapy in patients with atrial fibrillation. Click the applicable items and the score will be calculated automatically. C : Congestive heart failure/LV dysfunction* (1point) H : Hypertension [or taking antihypertensive medication] (1point) A2 : Age 75 years or older (2points) D : … Read more
Medical Calculator – SonDoctor.com × Post-Operative Day (POD) Calculator POD : Post Operative Day Today : Surgery Date :
Medical Calculator – SonDoctor.com × Calculate Date Before/After a Period A calculator to check the date before/after a specific period from the base date. Base Date : Period (days) :
Medical Calculator – SonDoctor.com × Hypertonic Saline Preparation Calculator (Making 3% Saline) This calculator helps determine the final NaCl concentration when mixing two saline solutions. Especially useful for preparing 3% saline for hyponatremia correction. Solution A: [e.g., Normal Saline] NaCl Concentration (%): Volume (mL): * Normal saline is 0.9% NaCl solution Solution B: [e.g., Hypertonic … Read more
Medical Calculator – SonDoctor.com × Transferrin Saturation Calculator T.sat (%) = (Fe / TIBC) x 100 Serum Fe (mcg/dL) : Serum TIBC (mcg/dL) :