DHAKA dehydration score (Levine)

DHAKA

Sum four caller-assigned Levine 2015 DHAKA Table 3 items and return the published total (max 12) and dehydration band (no, some, or severe).

LIVE $0.005 USDC GET /api/calc/dhaka

Markdown: /docs/dhaka.md · Canonical: https://magentlab.com/docs/dhaka

Not a medical device. Not a diagnosis, dose, or listing recommendation.

What it computes

Sum four caller-assigned Levine 2015 DHAKA Table 3 items and return the published total (max 12) and dehydration band (no, some, or severe).

When to use

When an agent has already assigned Levine 2015 Table 3 general appearance, respirations, skin pinch, and tears and needs the published DHAKA Dehydration Score total and band, not a WHO IMCI algorithm, fluids order, or the DHAKA Tree.

When not to use

Not a medical device and not a WHO IMCI algorithm clone. This is the empirically derived Levine 2015 DHAKA Dehydration Score (Table 3), not the DHAKA Tree / recursive partitioning model.
Each of the four items is caller-assigned. magent does not examine the child or order fluids.
Derived in children younger than 5 years with acute diarrhea. Age is not a score item and is not required.
Table 3 bands only: no_dehydration 0–1, some_dehydration 2–3, severe_dehydration ≥4. Respirations have only Normal and Deep (no very-deep cell).

Formula

DHAKA = general_appearance (normal 0, restless_irritable 2, lethargic_unconscious 4) + respirations (normal 0, deep 2) + skin_pinch (normal 0, slow 2, very_slow 4) + tears (normal 0, decreased 1, absent 2); Levine 2015 Table 3; max 12

Citation

Title: Empirically Derived Dehydration Scoring and Decision Tree Models for Children With Diarrhea: Assessment and Internal Validation in a Prospective Cohort Study in Dhaka, Bangladesh
Authors: Levine AC, Glavis-Bloom J, Modi P, Nasrin S, Rege S, Chu C, Schmid CH, Alam NH
Source: Glob Health Sci Pract. 2015;3(3):405-418
DOI: 10.9745/GHSP-D-15-00097

Worked example

All items normal

Given: general_appearance=normalrespirations=normalskin_pinch=normaltears=normal

general_appearance normal 0 + respirations normal 0 + skin_pinch normal 0 + tears normal 0
Score = 0 (max 12); dhaka_band no_dehydration

Deep respirations only

Given: general_appearance=normalrespirations=deepskin_pinch=normaltears=normal

respirations deep 2; other items 0
Score = 2 (max 12); dhaka_band some_dehydration

Maximum Table 3 score

Given: general_appearance=lethargic_unconsciousrespirations=deepskin_pinch=very_slowtears=absent

lethargic_unconscious 4 + deep 2 + very_slow 4 + absent 2
Score = 12 (max 12); dhaka_band severe_dehydration

Also searched as

dhaka score
pediatric dehydration
diarrhea dehydration
DHAKA dehydration score
Levine DHAKA
DHAKA Table 3
child diarrhea dehydration

Try

Opens the live endpoint. Unpaid browser requests show the paywall; agents should send Accept: application/json.

/api/calc/dhaka?general_appearance=normal&respirations=normal&skin_pinch=normal&tears=normal

Full URL: https://api.magentlab.com/api/calc/dhaka?general_appearance=normal&respirations=normal&skin_pinch=normal&tears=normal

Call

Expect HTTP 402 until you retry with PAYMENT-SIGNATURE. Incomplete query params return HTTP 400 before any quote or charge.

curl -i -H "Accept: application/json" "https://api.magentlab.com/api/calc/dhaka?general_appearance=normal&respirations=normal&skin_pinch=normal&tears=normal"

Parameters

Name	Type	Required	Description
`general_appearance`	string	required · normal, restless_irritable, lethargic_unconscious	Caller-assigned Levine 2015 Table 3 general appearance: normal (0), restless_irritable (2), or lethargic_unconscious (4). magent does not examine the child.
`respirations`	string	required · normal, deep	Caller-assigned Levine 2015 Table 3 respirations: normal (0) or deep (2). Table 3 has no very-deep cell. magent does not examine the child.
`skin_pinch`	string	required · normal, slow, very_slow	Caller-assigned Levine 2015 Table 3 skin pinch: normal (0), slow (2), or very_slow (4). magent does not examine the child.
`tears`	string	required · normal, decreased, absent	Caller-assigned Levine 2015 Table 3 tears: normal (0), decreased (1), or absent (2). magent does not examine the child.

Bulk (POST)

POST the same path with a JSON items array. The first item is the GET unit; each additional item is $0.002. Invalid items return HTTP 400 before settlement.

POST /api/calc/dhaka Max 25 unit_amount + extra_item_amount * (n - 1) extra $0.002 PREVIEW

1 to 25 items. Each item uses the same keys as the GET query parameters.
POST of 1 item costs the same as GET. Lists longer than 25: chunk into multiple POSTs. Extra items still execute; do not pad dummy rows.
The first invalid item fails the whole request (index in the 400 JSON). You are not charged.
HTTP 200 is {count, path, items}. Each items[i] is the GET 200 body for that row.
Catalog misses (empty matches, found=false) stay paid 200s inside that slot.
x402 resource URL is this path plus n and body_sha256. Browsers that prefer text/html get the same paywall as GET; Pay retries POST with the same items.

Example request (fixture)

{
  "items": [
    {
      "general_appearance": "normal",
      "respirations": "normal",
      "skin_pinch": "normal",
      "tears": "normal"
    },
    {
      "general_appearance": "normal",
      "respirations": "normal",
      "skin_pinch": "normal",
      "tears": "normal"
    }
  ]
}

Open bulk paywall →

Opens a two-item fixture on the API host. Unpaid browsers get the same MetaMask paywall as GET; Pay retries POST with those items.

Example 200 (fixture)

{
  "count": 2,
  "path": "/api/calc/dhaka",
  "items": [
    {
      "components": [
        {
          "value": "normal",
          "factor": "general_appearance",
          "points": 0,
          "present": true
        },
        {
          "value": "normal",
          "factor": "respirations",
          "points": 0,
          "present": true
        },
        {
          "value": "normal",
          "factor": "skin_pinch",
          "points": 0,
          "present": true
        },
        {
          "value": "normal",
          "factor": "tears",
          "points": 0,
          "present": true
        }
      ],
      "disclaimer": "Not a medical device. Deterministic published-formula or published-code output for autonomous agents. A licensed clinician remains responsible for patient care and billing submissions.",
      "citation": {
        "authors": "Levine AC, Glavis-Bloom J, Modi P, Nasrin S, Rege S, Chu C, Schmid CH, Alam NH",
        "doi": "10.9745/GHSP-D-15-00097",
        "id": "levine-2015",
        "pmid": "26374802",
        "source": "Glob Health Sci Pract. 2015;3(3):405-418",
        "title": "Empirically Derived Dehydration Scoring and Decision Tree Models for Children With Diarrhea: Assessment and Internal Validation in a Prospective Cohort Study in Dhaka, Bangladesh"
      },
      "formula": "dhaka",
      "formula_expression": "DHAKA = general_appearance (normal 0, restless_irritable 2, lethargic_unconscious 4) + respirations (normal 0, deep 2) + skin_pinch (normal 0, slow 2, very_slow 4) + tears (normal 0, decreased 1, absent 2); Levine 2015 Table 3; max 12",
      "max_score": 12,
      "score": 0,
      "dhaka_band": "no_dehydration",
      "general_appearance": "normal",
      "respirations": "normal",
      "skin_pinch": "normal",
      "tears": "normal"
    },
    {
      "components": [
        {
          "value": "normal",
          "factor": "general_appearance",
          "points": 0,
          "present": true
        },
        {
          "value": "normal",
          "factor": "respirations",
          "points": 0,
          "present": true
        },
        {
          "value": "normal",
          "factor": "skin_pinch",
          "points": 0,
          "present": true
        },
        {
          "value": "normal",
          "factor": "tears",
          "points": 0,
          "present": true
        }
      ],
      "disclaimer": "Not a medical device. Deterministic published-formula or published-code output for autonomous agents. A licensed clinician remains responsible for patient care and billing submissions.",
      "citation": {
        "authors": "Levine AC, Glavis-Bloom J, Modi P, Nasrin S, Rege S, Chu C, Schmid CH, Alam NH",
        "doi": "10.9745/GHSP-D-15-00097",
        "id": "levine-2015",
        "pmid": "26374802",
        "source": "Glob Health Sci Pract. 2015;3(3):405-418",
        "title": "Empirically Derived Dehydration Scoring and Decision Tree Models for Children With Diarrhea: Assessment and Internal Validation in a Prospective Cohort Study in Dhaka, Bangladesh"
      },
      "formula": "dhaka",
      "formula_expression": "DHAKA = general_appearance (normal 0, restless_irritable 2, lethargic_unconscious 4) + respirations (normal 0, deep 2) + skin_pinch (normal 0, slow 2, very_slow 4) + tears (normal 0, decreased 1, absent 2); Levine 2015 Table 3; max 12",
      "max_score": 12,
      "score": 0,
      "dhaka_band": "no_dehydration",
      "general_appearance": "normal",
      "respirations": "normal",
      "skin_pinch": "normal",
      "tears": "normal"
    }
  ]
}

Response

Field	Type	Description
`formula`	string	dhaka
`formula_expression`	string	Exact expression used
`score`	integer	DHAKA Table 3 points 0-12
`max_score`	integer	Always 12
`dhaka_band`	string	Levine 2015 Table 3 category: no_dehydration (0-1), some_dehydration (2-3), or severe_dehydration (≥4). A score band, not a fluids order and not the DHAKA Tree.
`general_appearance`	string	Caller-assigned token used: normal, restless_irritable, or lethargic_unconscious
`respirations`	string	Caller-assigned token used: normal or deep
`skin_pinch`	string	Caller-assigned token used: normal, slow, or very_slow
`tears`	string	Caller-assigned token used: normal, decreased, or absent
`components`	array	Per-item caller-assigned points
`citation`	object	Levine et al. Glob Health Sci Pract 2015 citation
`disclaimer`	string	Not-a-device notice

Example JSON

Machine form of the same example. Frozen fixture. Not a live lookup.

{
  "components": [
    {
      "value": "normal",
      "factor": "general_appearance",
      "points": 0,
      "present": true
    },
    {
      "value": "normal",
      "factor": "respirations",
      "points": 0,
      "present": true
    },
    {
      "value": "normal",
      "factor": "skin_pinch",
      "points": 0,
      "present": true
    },
    {
      "value": "normal",
      "factor": "tears",
      "points": 0,
      "present": true
    }
  ],
  "disclaimer": "Not a medical device. Deterministic published-formula or published-code output for autonomous agents. A licensed clinician remains responsible for patient care and billing submissions.",
  "citation": {
    "authors": "Levine AC, Glavis-Bloom J, Modi P, Nasrin S, Rege S, Chu C, Schmid CH, Alam NH",
    "doi": "10.9745/GHSP-D-15-00097",
    "id": "levine-2015",
    "pmid": "26374802",
    "source": "Glob Health Sci Pract. 2015;3(3):405-418",
    "title": "Empirically Derived Dehydration Scoring and Decision Tree Models for Children With Diarrhea: Assessment and Internal Validation in a Prospective Cohort Study in Dhaka, Bangladesh"
  },
  "formula": "dhaka",
  "formula_expression": "DHAKA = general_appearance (normal 0, restless_irritable 2, lethargic_unconscious 4) + respirations (normal 0, deep 2) + skin_pinch (normal 0, slow 2, very_slow 4) + tears (normal 0, decreased 1, absent 2); Levine 2015 Table 3; max 12",
  "max_score": 12,
  "score": 0,
  "dhaka_band": "no_dehydration",
  "general_appearance": "normal",
  "respirations": "normal",
  "skin_pinch": "normal",
  "tears": "normal"
}

Client errors (HTTP 400)

Invalid params return 400 without charge. Shared HTTP 402 and 503 meanings: Payments.

HTTP	Code	When
400	`invalid_dhaka_appearance`	general_appearance must be normal, restless_irritable, or lethargic_unconscious (Levine 2015 DHAKA Table 3). Returned before settlement; you are not charged.
400	`invalid_dhaka_respirations`	respirations must be normal or deep (Levine 2015 DHAKA Table 3). Returned before settlement; you are not charged.
400	`invalid_dhaka_skin_pinch`	skin_pinch must be normal, slow, or very_slow (Levine 2015 DHAKA Table 3). Returned before settlement; you are not charged.
400	`invalid_dhaka_tears`	tears must be normal, decreased, or absent (Levine 2015 DHAKA Table 3). Returned before settlement; you are not charged.
400	`invalid_items`	POST body must be a JSON object with only an items array Returned before settlement; you are not charged.
400	`invalid_item_count`	items must be an array of 1 to 25 objects Returned before settlement; you are not charged.
400	`invalid_item`	each items entry must be a JSON object Returned before settlement; you are not charged.

Related tools

Westley croup — Sum the Westley 1978 croup clinical score from caller-assigned consciousness, cyanosis, stridor, air entry, and retractions (maximum 17).

Payment

Unpaid requests return HTTP 402 even if query parameters or POST items are missing or invalid, so CDP and agents can index the path. After a PAYMENT-SIGNATURE, invalid params return HTTP 400 JSON before settlement. magent does not charge. Fix the params, then request a new 402 quote for that complete URL. Catalog misses (empty matches, found=false) are valid paid 200s. Unpaid valid requests return HTTP 402 with a base64 PAYMENT-REQUIRED header. HTTP 503 is not a new quote: retry the same PAYMENT-SIGNATURE. Full handshake and shared payment errors: Payments. Stdio MCP: /docs/mcp.

Guarantees

HTTP 402 is unpaid, including a missing query. After PAYMENT-SIGNATURE, invalid parameters return HTTP 400 before settlement. You are not charged. HTTP 402 never includes the tool JSON.
exact: settlement finishes before the tool (paymentFlow upfront). batch-settlement: verify/deposit before the tool; chargedCumulativeAmount commits after HTTP 2xx. Uncertain or failed settlement fails closed (HTTP 503). Retry the same PAYMENT-SIGNATURE.
HTTP 402 is unpaid only. Do not sign a second authorization because of a 503.
Execution is timeout-bounded and concurrency-capped.
Calculator inputs are stored encrypted for allowlisted operators (Magent Console). They are not in public logs, SSH lookups, catalog, or rollups. Request logs store path without query.