# IV Acetylcysteine Dose Calculator (Prescott 1979)

> IV Acetylcysteine Dose Calculator (Prescott 1979) 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 intravenous acetylcysteine (NAC) dosing for acetaminophen poisoning based on patient weight using the Prescott 1979 three-bag regimen.

## Facts

- Endpoint: GET https://api.magentlab.com/api/calc/acetylcysteine_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/iv-acetylcysteine-dose-calculator-prescott-1979-c0066028
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_bdrzRO_xpKT16-qY8EayD

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 iv-acetylcysteine-dose-calculator-prescott-1979-c0066028
```

Example prompt: Calculate the IV acetylcysteine doses for a 68 kg patient using the Prescott three-bag regimen — I need the loading dose, the 4-hour infusion dose, and the 16-hour infusion dose.

## When to prefer this

Use this endpoint when you need rapid, weight-based IV acetylcysteine dose computation for the standard Prescott 1979 three-bag regimen. It is ideal for clinical decision support tools, EHR integrations, or emergency department agents that need the three phase-specific milligram amounts quickly. Do not use it as a substitute for Rumack–Matthew nomogram interpretation or plasma acetaminophen level analysis.

## Known failure modes

- weight_kg outside 1–200 range returns a validation error
- missing weight_kg parameter returns a 400 bad request
- non-numeric weight value causes schema validation failure
- payment failure (insufficient USDC balance) blocks the call via x402 protocol

## How this service works

Intravenous acetylcysteine milligrams from weight (Prescott 1979). load_mg = weight_kg * 150 over 15 minutes; infusion_4h_mg = weight_kg * 50 over 4 hours; infusion_16h_mg = weight_kg * 100 over 16 hours; total_mg = weight_kg * 300 over 20.25 hours. For acetaminophen (paracetamol) poisoning. Not a prescription, not a Rumack–Matthew nomogram, and not a plasma acetaminophen interpretation.

## Output

Returns four computed dose values in milligrams: the 15-minute loading dose (weight_kg × 150), the 4-hour infusion dose (weight_kg × 50), the 16-hour infusion dose (weight_kg × 100), and the total dose over approximately 20.25 hours (weight_kg × 300). Does not return nomogram interpretation or plasma acetaminophen levels.

## 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": [
      "weight_kg"
     ],
     "properties": {
      "weight_kg": {
       "type": "number",
       "description": "Weight in kilograms (1-200)."
      }
     }
    }
   },
   "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/iv-acetylcysteine-dose-calculator-prescott-1979-c0066028/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)