Evidence-based, clinician-facing notes on the calculators, criteria and quick-references in Doctaverse. Decision support only.
Serum anion gap done properly — HAGMA vs NAGMA, why hypoalbuminemia masks a raised gap (correct +2.5 per g/dL below normal), and using the delta ratio to unmask a hidden second acid-base disorder.
Calculator guidesHow to calculate the ANC from the WBC, neutrophils and bands, the CTCAE severity grades, and why fever with an ANC <500 is a treat-now emergency.
Calculator guidesWhy pediatric BMI must be read as BMI-for-age z-scores, not adult thresholds — WHO cutoffs for thinness, overweight and obesity, a worked example, and caveats.
Calculator guidesHow to use the McIsaac-modified Centor score to estimate group A strep pharyngitis risk, apply the age adjustment, and decide when to test rather than treat empirically.
Calculator guidesFractional excretion of sodium vs urea in pediatric AKI — the <1% prerenal cutoff, why FEUrea (<35%) is needed on diuretics, and the neonatal caveat.
Calculator guidesMCV ÷ RBC count — the <13 thalassemia-trait / >13 iron-deficiency rule for microcytic anemia, the physiology behind it, sensitivity/specificity, and why it never replaces electrophoresis or iron studies.
Calculator guidesHow to calculate pediatric maintenance IV fluids with the Holliday-Segar method — daily 100/50/20 and hourly 4/2/1 rules, worked example, and key caveats.
Calculator guidesThe 2022 AAP hyperbilirubinemia thresholds for infants ≥35 weeks — how gestational age, postnatal hour, and neurotoxicity risk factors move the phototherapy and exchange lines, plus the escalation-of-care zone. BETA digitized curves.
Calculator guidesGCS for pediatrics — the eye/verbal/motor breakdown, the infant-modified verbal and motor responses, the mild/moderate/severe bands, and why motor matters most in the intubated or preverbal child.
Calculator guidesHow to correct the QT interval in children — Bazett vs Fridericia, the >460 ms paediatric threshold, false positives at high heart rates, and a worked example.
Calculator guidesThe Westley croup score — its five components, the 0–17 scale, mild/moderate/severe cutoffs, and how it guides dexamethasone and nebulised adrenaline.
Calculator guidesHow to correct measured serum sodium for hyperglycaemia in diabetic ketoacidosis, when to use the 1.6 versus 2.4 factor, and how it differs from pseudohyponatraemia.
Calculator guidesEstimating pediatric GFR with the updated 2009 bedside Schwartz equation (k=0.413), assay caveats, a worked example, and when the formula breaks down.
Cheat sheetsA clinician quick reference for pediatric febrile neutropenia — ANC definition, when it is an emergency, and the door-to-antibiotic-within-one-hour rule.
Cheat sheetsA clinician cheat-sheet for grading pediatric dehydration by clinical signs, estimating the fluid deficit, and choosing oral versus IV rehydration.
Cheat sheetsDiagnosis, fluids and insulin for pediatric diabetic ketoacidosis — 0.05–0.1 U/kg/hr insulin, no bolus insulin, corrected sodium, and cerebral oedema red flags, per ISPAD 2022.
Cheat sheetsCheat-sheet for pediatric IV fluid resuscitation boluses and Holliday-Segar maintenance rates, with isotonic fluid choice and a maintenance fluid calculator.
Cheat sheetsWeight-based pediatric resuscitation drug doses — adrenaline, amiodarone, atropine, adenosine, calcium and more — for cardiac arrest and peri-arrest.
Cheat sheetsBedside table of normal pediatric heart rate, respiratory rate and blood pressure by age band, plus fever and shock red flags for clinicians.
Disease A–ZClinician reference on paediatric dengue — WHO 2009 classification, warning signs, NS1/serology, fluid management of the critical phase, and red flags.
Cheat sheetsTimed pediatric convulsive status epilepticus algorithm — benzodiazepine dosing (lorazepam 0.1 mg/kg, midazolam), second-line levetiracetam/phenytoin/valproate, and RSI, per APLS/NICE.
Disease A–ZClinician reference on febrile seizures — simple vs complex definitions, AAP neurodiagnostic evaluation, when to do an LP, recurrence risk, and red flags.
Disease A–ZConcise clinician reference on HSP / IgA vasculitis — EULAR/PRINTO/PRES 2010 criteria, the tetrad of features, renal surveillance, and red flags.
Disease A–ZConcise clinician reference on pediatric GBS — Brighton case definition, albuminocytologic dissociation, IVIG/plasma exchange, and respiratory red flags.
Disease A–ZConcise clinician reference on Kawasaki disease — AHA 2017 criteria for classic and incomplete KD, coronary risk, IVIG/aspirin therapy, and red flags.
Disease A–ZConcise clinician reference on pediatric nephrotic syndrome — ISKDC definition, steroid-sensitive vs resistant disease, IPNA management, and red flags.
Disease A–ZConcise clinician reference on childhood UTI — NICE NG224 diagnosis, atypical vs recurrent UTI, imaging strategy, antibiotics, and red flags.
Calculator guidesHow the New Ballard Score estimates gestational age from 12 maturity signs, the 24 + 0.4 × total formula, timing of the exam, and a worked example with pitfalls.
Calculator guidesThe Mosteller BSA formula for children, why body surface area beats weight for chemotherapy and fluid dosing, a worked example, and the obesity-capping pitfall.
Calculator guidesHow to calculate neonatal glucose infusion rate in mg/kg/min, target ranges for hypoglycemia, the 12.5% peripheral dextrose ceiling, and a worked TPN blend example.
Calculator guidesClassifying children's blood pressure by the AAP 2017 guideline — age/sex/height percentiles under 13, absolute thresholds at 13+, plus a worked example and pitfalls.
Cheat sheetsPediatric anaphylaxis recognition and first-line IM adrenaline dosing by weight and age (0.01 mg/kg, 1:1000), plus positioning and adjuncts — a quick reference for clinicians.
Cheat sheetsNRP 8th edition algorithm summary — initial steps, the Golden Minute, PPV, 3:1 chest compressions and adrenaline 0.01–0.03 mg/kg IV — as a quick bedside reference for clinicians.
Cheat sheetsGlasgow Coma Scale with pediatric and infant modifications as a side-by-side chart — eye, verbal and motor scoring, totals and severity bands — for clinicians.
Cheat sheetsBedside pediatric lab reference ranges by age — CBC (Hb, WBC, platelets), electrolytes, renal function and liver function tests — in quick-scan tables for clinicians.
Disease A–ZRecognise and treat paediatric anaphylaxis — WAO/EAACI diagnostic criteria, red flags, and first-line IM adrenaline 0.01 mg/kg (max 0.3 mg in children), repeated every 5 minutes.
Disease A–ZDiagnose paediatric cystic fibrosis — sweat chloride ≥60 mmol/L, CFTR genetics, newborn screening pathway, plus red flags and a multidisciplinary management overview.
Disease A–ZDiagnose and manage paediatric functional constipation by Rome IV criteria — disimpaction, maintenance osmotic laxatives (PEG), red flags for organic disease, and behavioural toileting.
Disease A–ZRecognise and treat paediatric severe falciparum malaria — WHO criteria (cerebral malaria, severe anaemia, hypoglycaemia, acidosis), red flags, and IV artesunate first-line.
Doctaverse is clinical decision support for qualified clinicians — it is not a medical device and not for patients or parents.
Every tool is suggestion-only. The calculators are deterministic and unit-tested and the AI never invents a dose, but outputs are not a substitute for your training, examination, local protocols, or primary guidelines. Content is provided “as is”, without warranty; verify every value before acting on it.