# HIET Dosing Calculator (Engebretsen 2011)

> HIET Dosing Calculator (Engebretsen 2011) is a paid API for AI agents from api.magentlab.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-15).

Calculates insulin bolus and infusion doses for high-dose insulin euglycemia therapy (HIET) in beta-blocker or calcium-channel-blocker cardiogenic shock based on patient weight

## Facts

- Endpoint: GET https://api.magentlab.com/api/calc/hiet
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/hiet-dosing-calculator-engebretsen-2011-03d8669e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_hD2AVgXXbgDbtkfvx3W66

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 hiet-dosing-calculator-engebretsen-2011-03d8669e
```

Example prompt: Calculate the HIET insulin bolus and infusion dose for a patient weighing 85 kg who is in cardiogenic shock from a calcium-channel-blocker overdose using the Engebretsen 2011 protocol.

## When to prefer this

Use this endpoint when you need a deterministic, citation-backed HIET insulin dose calculation based on patient weight for beta-blocker or calcium-channel-blocker cardiogenic shock. Prefer it over manual calculation to avoid arithmetic errors. It is not a substitute for clinical judgment, titration decisions, or adjunct therapy selection.

## Known failure modes

- Weight out of range (below 1 kg or above 500 kg for weight_kg; below 2 lb or above 1100 lb for weight_lb) returns an error
- Neither weight_kg nor weight_lb provided returns a missing parameter error
- Both weight parameters omitted results in a validation error
- Non-numeric weight values cause a schema validation failure

## How this service works

High-dose insulin euglycemia therapy (HIET) from Engebretsen 2011: 1 U/kg insulin bolus, then a 1-10 U/kg/h continuous infusion. Weight in kg or lb. Not a prescription. Used in beta-blocker or calcium-channel-blocker cardiogenic shock. magent does not titrate, choose dextrose, or add DigiFab, glucagon, or calcium. Deterministic published arithmetic with citation.

## Output

Returns the calculated 1 U/kg insulin bolus dose and the 1–10 U/kg/h continuous infusion range based on the patient's weight, derived from the Engebretsen 2011 HIET protocol. Does not include dextrose selection, titration guidance, DigiFab, glucagon, or calcium recommendations.

## 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": [],
     "properties": {
      "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."
      }
     }
    }
   },
   "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/hiet-dosing-calculator-engebretsen-2011-03d8669e/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
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