{"uid":"cap_Na2TX0cR1lzXL72NQq4o3","slug":"nice-ng29-pediatric-iv-maintenance-fluid-calculator-77896633","name":"NICE NG29 Pediatric IV Maintenance Fluid Calculator","description":"NICE NG29 (2015, updated 2020) pediatric IV maintenance for children and young people: Holliday–Segar daily 100/50/20 mL/kg, then male 2500 mL or female 2000 mL 24-hour caps, then ADH-risk restriction at 50%, 80%, or 100% of the capped volume. Hourly is restricted/24, not 4-2-1. Not a prescription, not neonate day-of-life volumes, and not adult CG174.","url":"https://api.magentlab.com/api/calc/nice_pediatric_iv","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET","HEAD","DELETE"],"type":"string"},"headers":{"type":"object","additionalProperties":{"type":"string"}},"queryParams":{"type":"object","required":["sex","restriction_percent"],"properties":{"sex":{"enum":["female","male"],"type":"string","description":"Sex for the NICE NG29 1.4.1 24-hour cap (female 2000 mL; male 2500 mL)."},"weight_kg":{"type":"number","description":"Weight in kilograms (1-500). Provide weight_kg or weight_lb."},"weight_lb":{"type":"number","description":"Weight in pounds (2-1100). Converted as kg = lb * 0.45359237."},"restriction_percent":{"enum":[50,80,100],"type":"integer","description":"NICE NG29 1.4.9 ADH-risk restriction as a percent of the capped daily volume. 50, 80, or 100 (100 = no restriction)."}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.005","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.005/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_vngYJkyCzxC7ab5Gwhr17","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Calculates pediatric IV maintenance fluid volumes (daily and hourly) using NICE NG29 Holliday–Segar rules with sex-based 24-hour caps and ADH-risk restriction options","exampleAgentPrompt":"Calculate the NICE NG29 IV maintenance fluid volume for a 25 kg male child with no ADH restriction (100%) — give me the daily volume and hourly rate.","exampleUseCases":[{"title":"Pediatric ward fluid prescribing support","prompt":"I need the NICE NG29 IV maintenance fluid volumes for a 30 kg female patient — use 80% restriction because she's at ADH risk. What's her daily cap and hourly rate?"},{"title":"SIADH fluid restriction for a small child","prompt":"Can you work out the IV maintenance fluid for a 12 kg male child who needs to be on 50% ADH-risk restriction per NICE NG29? I need both the capped daily volume and the hourly drip rate."},{"title":"Standard maintenance fluids for an older child","prompt":"What's the standard NICE NG29 daily maintenance fluid volume and hourly rate for a 55 kg female teenager with no restriction — so 100% of the capped volume?"}],"resultDescription":"Returns the calculated 24-hour maintenance fluid volume in mL (after applying Holliday–Segar 100/50/20 mL/kg steps, sex-based daily cap of 2000 mL for female or 2500 mL for male, and the selected ADH-risk restriction at 50%, 80%, or 100%), plus the derived hourly rate in mL/hr (daily restricted volume divided by 24).","failureModes":["Missing required query parameters (sex or restriction_percent) returns a 400-level error","Weight out of supported range (below 1 kg or above 500 kg) may return a validation error or unexpected result","Invalid restriction_percent value (not 50, 80, or 100) returns an error — only those three enum values are accepted","Invalid sex value (not 'male' or 'female') returns a validation error","Payment not included or insufficient (x402) causes a 402 Payment Required response","Neither weight_kg nor weight_lb provided may result in an error or default behavior"],"whenToPreferThis":"Use this endpoint when you need a NICE NG29-compliant pediatric IV maintenance fluid calculation for children and young people, specifically when you need the Holliday–Segar 100/50/20 mL/kg formula with the sex-based 24-hour cap and optional ADH-risk restriction at 50%, 80%, or 100%. Do not use this for neonates on day-of-life volume protocols, adults (use CG174 guidance), or when a full prescription system is required. Prefer this over general fluid calculators when NICE NG29 guideline compliance is explicitly required.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T13:00:07.451Z","isFirstParty":false}