Son Doctor Medical Calculator – SonDoctor.com × Robux Calculator Current Robux Rate Robux(R): USD($): *As of 11/2025: 400 Robux = $4.99 Convert Robux(R) → USD($) Convert USD($) → Robux(R) Enter Robux(R): Auto-calculate on number input Enter USD($): Auto-calculate on number input *Robux prices may vary depending on exchange rates, events, and payment methods. For the most accurate … Read more
Medical Calculator – SonDoctor.com × Hyponatremia Treatment – 3% Saline Infusion Rate Calculator (Adrogue-Madias Formula) This calculator uses the Adrogue-Madias formula to determine the infusion rate of 3% saline during the initial treatment of Hyponatremia. Infusion rate of 3% Saline[mL/hr] = ( (Target Na-Serum Na) / ((513-Serum Na) / (TBW+1)) / Target period[hr] )×1000 ※ … Read more
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 × Urine Na-to-K Ratio Calculator (Check High vs. Low Salt Intake) Urine Sodium (Na, mmol/L) : Urine Potassium (K, mmol/L) : Based on two studies, salt intake levels are categorized as: Urine Na/K ratio ＜ 1.0: Ideal low-salt diet at WHO recommended level 1.0 ~ 1.5: Favorable low-salt intake 1.5 ~ … Read more
Medical Calculator – SonDoctor.com × Cholesterol Ratio Calculator (1) Total Cholesterol(TC) / HDL-C ratio (2) non-HDL-C / HDL-C ratio (3) Triglycerides(TG) / HDL-C ratio (4) LDL-C / HDL-C ratio Total Cholesterol (mg/dL) : Triglycerides (mg/dL) : HDL-cholesterol (mg/dL) : LDL-cholesterol (mg/dL) : You must enter HDL-C and at least one other value. If only TC, … Read more
Medical Calculator – SonDoctor.com × ABI Calculator ABI: Ankle-Brachial index Right ABI = Right ankle systolic BP / Brachial systolic BP Left ABI = Left ankle systolic BP / Brachial systolic BP *Brachial systolic BP: Use the higher value between left and right arm *Ankle systolic BP: Use the higher value from Posterior tibial a. … Read more
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 × RCRI (Revised Cardiac Risk Index) for preoperative risk Preoperative cardiac risk assessment High-risk surgery : NoYes ( Intraperitoneal, intrathoracic, or suprainguinal vascular procedures ) Ischemic heart disease : NoYes ( Patient has history of myocardial infarction, positive exercise test, current complaint of ischemic chest pain or use of nitrate therapy, … Read more
Medical Calculator – SonDoctor.com × C2HEST score Calculator Assess risk of developing atrial fibrillation. Click the relevant items to automatically calculate the score. C : CAD (1 point) C : COPD (1 point) H : Hypertension (1 point) E : Elderly [Age ≥ 75] (2 points) S : Systolic Heart Failure (2 points) T : … Read more