# Ichord 2011 Pediatric NIH Stroke Scale (PedNIHSS) Calculator

> Ichord 2011 Pediatric NIH Stroke Scale (PedNIHSS) Calculator is a paid API for AI agents from api.magentlab.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-15).

Computes the Ichord 2011 Pediatric NIH Stroke Scale (PedNIHSS) total score (0–42) from 15 caller-assigned NINDS integer subscores for children.

## Facts

- Endpoint: GET https://api.magentlab.com/api/calc/pediatric_nihss
- 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/ichord-2011-pediatric-nih-stroke-scale-pednihss-calculator-4e742fb5
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_KqITRXjTMIGfzzsnorZuP

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 ichord-2011-pediatric-nih-stroke-scale-pednihss-calculator-4e742fb5
```

Example prompt: Calculate the Ichord 2011 PedNIHSS total score for a child with these subscores: LOC 1, LOC questions 1, LOC commands 0, best gaze 1, best visual 2, facial palsy 1, motor left arm 2, motor right arm 1, motor left leg 2, motor right leg 1, limb ataxia 1, sensory 1, best language 2, dysarthria 1, extinction 1.

## When to prefer this

Choose this endpoint when you need to compute a total Ichord 2011 PedNIHSS score for a pediatric patient from pre-collected integer subscores. Prefer it over adult NIHSS calculators because it uses the correct Ichord 2011 item set (extinction not Brott neglect, visual range 0–3, no pupillary response or plantar reflex items, max 42). Do not use for adults, for mNIHSS, or when a clinical examination needs to be performed — this is a pure arithmetic aggregation tool for caller-supplied values.

## Known failure modes

- Missing required subscore parameter returns a validation error
- Subscore integer outside allowed enum range (e.g. motor arm value of 5) rejected with error
- Non-integer value for any subscore causes schema validation failure
- Network timeout or server error returns HTTP 5xx with no score
- Misidentifying the scale as adult NIHSS (max 42 vs Brott 1989 max 37) — caller must supply correct Ichord 2011 values

## How this service works

Ichord 2011 Pediatric NIH Stroke Scale (PedNIHSS): 15 caller-assigned NINDS NIHSS integers with left and right motor arm and leg (each 0-4). Visual 0-3. Extinction, not Brott neglect. No pupillary response or plantar reflex. Sum 0-42. magent does not examine the child. No total-score severity bands in Ichord 2011; later 5/15/20 website cutoffs are not applied. Not Brott 1989 15-item NIHSS (max 37), not mNIHSS, not a tPA order, not a diagnosis, and not a medical device.

## Output

Returns the summed PedNIHSS integer total (range 0–42) computed from the 15 caller-supplied Ichord 2011 subscores. Does not apply severity band labels, does not perform a clinical examination, and is not a diagnosis, tPA order, or medical device output.

## 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": [
      "loc",
      "loc_questions",
      "loc_commands",
      "best_gaze",
      "best_visual",
      "facial_palsy",
      "motor_left_arm",
      "motor_right_arm",
      "motor_left_leg",
      "motor_right_leg",
      "limb_ataxia",
      "sensory",
      "best_language",
      "dysarthria",
      "extinction"
     ],
     "properties": {
      "loc": {
       "enum": [
        0,
        1,
        2,
        3
       ],
       "type": "integer",
       "description": "Caller-assigned Ichord 2011 PedNIHSS level of consciousness (integer 0-3): 0 alert, 1 not alert but arousable, 2 not alert requires repeated stimulation, 3 unresponsive. magent does not examine the child."
      },
      "sensory": {
       "enum": [
        0,
        1,
        2
       ],
       "type": "integer",
       "description": "Caller-assigned Ichord 2011 PedNIHSS sensory (integer 0-2): 0 normal, 1 mild to moderate loss, 2 severe to total loss. magent does not examine the child."
      },
      "best_gaze": {
       "enum": [
        0,
        1,
        2
       ],
       "type": "integer",
       "description": "Caller-assigned Ichord 2011 PedNIHSS best gaze (integer 0-2): 0 normal, 1 partial gaze palsy, 2 forced deviation. magent does not examine the child."
      },
      "dysarthria": {
       "enum": [
        0,
        1,
        2
       ],
       "type": "integer",
       "description": "Caller-assigned Ichord 2011 PedNIHSS dysarthria (integer 0-2): 0 normal articulation, 1 mild to moderate, 2 severe or unintelligible. magent does not examine the child."
      },
      "extinction": {
       "enum": [
        0,
        1,
        2
       ],
       "type": "integer",
       "description": "Caller-assigned Ichord 2011 PedNIHSS extinction and inattention (integer 0-2): 0 no abnormality, 1 inattention to one modality, 2 profound hemi-inattention or extinction to more than one modality. Not Brott negle
… (truncated)
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/ichord-2011-pediatric-nih-stroke-scale-pednihss-calculator-4e742fb5/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)