# NICE NG29 Pediatric IV Maintenance Fluid Calculator

> NICE NG29 Pediatric IV Maintenance Fluid Calculator is a paid API for AI agents from api.magentlab.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-14).

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

## Facts

- Endpoint: GET https://api.magentlab.com/api/calc/nice_pediatric_iv
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/nice-ng29-pediatric-iv-maintenance-fluid-calculator-77896633
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Na2TX0cR1lzXL72NQq4o3

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability nice-ng29-pediatric-iv-maintenance-fluid-calculator-77896633
```

Example prompt: 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.

## When to prefer this

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.

## Known failure modes

- 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

## How this service works

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.

## Output

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).

## Request schema (JSON Schema)

```json
{
 "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"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/nice-ng29-pediatric-iv-maintenance-fluid-calculator-77896633/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.magentlab.com](https://www.zero.xyz/host/api.magentlab.com/llms.txt)