A free collection of browser-based clinical calculators and validated screening instruments, organized by subspecialty for otolaryngology education and workflow support.
Weight-based paediatric dosing, local-anaesthetic maximum-dose calculator and an ENT drug quick-reference for clinic and OR.
Open tools →Modified Centor (McIsaac) and FeverPAIN scores side by side, with live antibiotic-decision guidance.
Open tool →Dix-Hallpike interpretation, a side-aware Epley walk-through with a 30-second hold timer, and a HINTS card for acute vertigo.
Open guide →Owner-only, de-identified log of OR, clinic, ward and ER cases — with research-cohort enrolment and a follow-up board. Google sign-in required.
Sign in →Age-based bronchoscope sizing (2.5–6.0 mm) with ETT, LMA and suction-catheter recommendations.
Use tool →Optimal ETT insertion depth (cm at lip) using the age-based formula or weight-based method.
Use tool →Racemic epinephrine dosing (0.05 mL/kg, max 0.5 mL) for croup and airway edema with dilution.
Use tool →Cotton-Myer grading (I–IV) for subglottic stenosis based on ETT-size reduction.
Use tool →Age-specific balloon catheter sizing (4–20 mm) for laryngotracheal stenosis dilation.
Use tool →Visual atlas of normal bronchoscopic anatomy, congenital variations and pathological findings.
View guide →Cochlear-implant screening using validated FDA criteria (HF-PTA ≥65 dB HL, WRS ≤70%).
Use tool →3-, 4- and high-frequency pure-tone averages with automatic hearing-loss classification.
Use tool →Compare Advanced Bionics, Cochlear and MED-EL systems — processors, arrays, MRI compatibility.
View comparison →Compare major manufacturers with NAL-NL2 vs DSL v5 fitting-formula comparison.
View comparison →22-item sino-nasal outcome test (0–110) for chronic rhinosinusitis symptom tracking.
Use tool →BMI, BSA, ideal body weight, fluid requirements and other general ENT calculations.
View calculators →Salivary-gland botulinum toxin (BOTOX, Xeomin, Dysport, Myobloc) dosing for drooling — children & adults, with reconstitution.
Use tool →22-item sinonasal outcome test for chronic rhinosinusitis.
Use tool →EN · ARNasal obstruction symptom evaluation (0–100).
Use tool →EN · AREustachian tube dysfunction questionnaire.
Use tool →EN · AR10-item dysphagia screening tool.
Use tool →EN · AR9-item LPR symptom index (RSI).
Use tool →EN · ARVoice Handicap Index, 10-item short form.
Use tool →EN · ARVoice Handicap Index, full 30-item.
Use tool →EN · ARDizziness Handicap Inventory (25 items).
Use tool →EN · ARTinnitus Handicap Inventory (25 items).
Use tool →EN · ARMini Tinnitus Questionnaire (12 items).
Use tool →EN · ARReflux Symptom Score-12 (frequency × severity).
Use tool →EN · ARDaytime sleepiness (ESS, 0–24).
Use tool →EN · ARSinus CT staging score (0–24).
Use tool →Endoscopic appearance score (0–20).
Use tool →Laryngoscopy findings score (RFS).
Use tool →These tools are provided free for education and clinical reference. Spotted an issue or have a suggestion? Reach out.