# DRIP drug resistance in pneumonia DRIP Status: LIVE Price: $0.005 USDC `GET /api/calc/drip` HTML: https://magentlab.com/docs/drip Markdown: https://magentlab.com/docs/drip.md Not a medical device. Not a diagnosis, dose, or listing recommendation. ## What it computes Sum the Webb 2016 DRIP (drug resistance in pneumonia) major and minor flags and return score, max, and high_risk at ≥4. ## When to use When an agent needs the published DRIP point total and must not invent an antibiotic order or HCAP criteria. ## When not to use - Not a medical device. - Not an antibiotic order and not a diagnosis of drug-resistant pneumonia. - This tool is the Webb 2016 DRIP table only. It is not HCAP (healthcare-associated pneumonia) criteria. - long_term_care is long-term acute care, skilled nursing, or inpatient rehabilitation as in Webb 2016; not assisted living or a group home. The caller assigns the flag; magent does not classify the facility. - poor_functional_status is Karnofsky <70 or non-ambulatory as in Webb 2016. The caller supplies the boolean; magent does not compute Karnofsky. ## Formula ``` DRIP = antibiotics_60d (2) + long_term_care (2) + tube_feeding (2) + prior_drp_1yr (2) + hospitalization_60d (1) + chronic_pulmonary_disease (1) + poor_functional_status (1) + gastric_acid_suppression (1) + wound_care (1) + mrsa_colonization_1yr (1); max 14; high_risk iff score >= 4 ``` ## Citation [Derivation and multicenter validation of the drug resistance in pneumonia clinical prediction score](https://doi.org/10.1128/AAC.03071-15) Webb BJ, Dascomb K, Stenehjem E, et al. Antimicrob Agents Chemother. 2016;60(5):2652-2663 DOI: [10.1128/AAC.03071-15](https://doi.org/10.1128/AAC.03071-15) ## Worked example ### All ten flags false Given: `antibiotics_60d=false, chronic_pulmonary_disease=false, gastric_acid_suppression=false, hospitalization_60d=false, long_term_care=false, mrsa_colonization_1yr=false, poor_functional_status=false, prior_drp_1yr=false, tube_feeding=false, wound_care=false` 1. Four major flags absent → 0 each 2. Six minor flags absent → 0 each 3. Score = 0 (max 14); high_risk false ### All ten flags true Given: `antibiotics_60d=true, chronic_pulmonary_disease=true, gastric_acid_suppression=true, hospitalization_60d=true, long_term_care=true, mrsa_colonization_1yr=true, poor_functional_status=true, prior_drp_1yr=true, tube_feeding=true, wound_care=true` 1. Four major flags → 2 each (8) 2. Six minor flags → 1 each (6) 3. Score = 14 (max 14); high_risk true ## Also searched as - DRIP score - drug resistance in pneumonia - Webb DRIP - DRIP pneumonia score - drug-resistant pneumonia - prior DRP score ## Parameters - `antibiotics_60d` (boolean, required): Antibiotic use within 60 days (Webb 2016 major, 2 points). true or false as assigned by the caller. - `long_term_care` (boolean, required): Residence in long-term acute care, a skilled nursing facility, or inpatient rehabilitation (Webb 2016 major, 2 points). Not assisted living or a group home. The caller assigns the flag; magent does not classify the facility. true or false. - `tube_feeding` (boolean, required): Tube feeding (Webb 2016 major, 2 points). true or false as assigned by the caller. - `prior_drp_1yr` (boolean, required): Prior drug-resistant pneumonia within 1 year (Webb 2016 major, 2 points). true or false as assigned by the caller. - `hospitalization_60d` (boolean, required): Hospitalization within 60 days (Webb 2016 minor, 1 point). true or false as assigned by the caller. - `chronic_pulmonary_disease` (boolean, required): Chronic pulmonary disease (Webb 2016 minor, 1 point). true or false as assigned by the caller. - `poor_functional_status` (boolean, required): Poor functional status as in Webb 2016 (Karnofsky <70 or non-ambulatory). Caller-assigned boolean; magent does not compute Karnofsky. 1 point if true. - `gastric_acid_suppression` (boolean, required): Gastric acid suppression (Webb 2016 minor, 1 point). true or false as assigned by the caller. - `wound_care` (boolean, required): Wound care (Webb 2016 minor, 1 point). true or false as assigned by the caller. - `mrsa_colonization_1yr` (boolean, required): MRSA colonization within 1 year (Webb 2016 minor, 1 point). true or false as assigned by the caller. ## 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. Method: `POST /api/calc/drip` Max items: 25 Price: unit_amount + extra_item_amount * (n - 1) (unit 5000 atomic, extra 2000 atomic) Status: 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: ```json { "items": [ { "antibiotics_60d": "false", "chronic_pulmonary_disease": "false", "gastric_acid_suppression": "false", "hospitalization_60d": "false", "long_term_care": "false", "mrsa_colonization_1yr": "false", "poor_functional_status": "false", "prior_drp_1yr": "false", "tube_feeding": "false", "wound_care": "false" }, { "antibiotics_60d": "false", "chronic_pulmonary_disease": "false", "gastric_acid_suppression": "false", "hospitalization_60d": "false", "long_term_care": "false", "mrsa_colonization_1yr": "false", "poor_functional_status": "false", "prior_drp_1yr": "false", "tube_feeding": "false", "wound_care": "false" } ] } ``` Human paywall (two-item fixture): https://api.magentlab.com/paywall/bulk/drip Example 200: ```json { "count": 2, "path": "/api/calc/drip", "items": [ { "components": [ { "factor": "antibiotics_60d", "points": 0, "present": false }, { "factor": "long_term_care", "points": 0, "present": false }, { "factor": "tube_feeding", "points": 0, "present": false }, { "factor": "prior_drp_1yr", "points": 0, "present": false }, { "factor": "hospitalization_60d", "points": 0, "present": false }, { "factor": "chronic_pulmonary_disease", "points": 0, "present": false }, { "factor": "poor_functional_status", "points": 0, "present": false }, { "factor": "gastric_acid_suppression", "points": 0, "present": false }, { "factor": "wound_care", "points": 0, "present": false }, { "factor": "mrsa_colonization_1yr", "points": 0, "present": false } ], "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": "Webb BJ, Dascomb K, Stenehjem E, et al.", "doi": "10.1128/AAC.03071-15", "id": "webb-2016", "pmid": "26856838", "source": "Antimicrob Agents Chemother. 2016;60(5):2652-2663", "title": "Derivation and multicenter validation of the drug resistance in pneumonia clinical prediction score" }, "formula": "drip", "formula_expression": "DRIP = antibiotics_60d (2) + long_term_care (2) + tube_feeding (2) + prior_drp_1yr (2) + hospitalization_60d (1) + chronic_pulmonary_disease (1) + poor_functional_status (1) + gastric_acid_suppression (1) + wound_care (1) + mrsa_colonization_1yr (1); max 14; high_risk iff score >= 4", "max_score": 14, "score": 0, "high_risk": false }, { "components": [ { "factor": "antibiotics_60d", "points": 0, "present": false }, { "factor": "long_term_care", "points": 0, "present": false }, { "factor": "tube_feeding", "points": 0, "present": false }, { "factor": "prior_drp_1yr", "points": 0, "present": false }, { "factor": "hospitalization_60d", "points": 0, "present": false }, { "factor": "chronic_pulmonary_disease", "points": 0, "present": false }, { "factor": "poor_functional_status", "points": 0, "present": false }, { "factor": "gastric_acid_suppression", "points": 0, "present": false }, { "factor": "wound_care", "points": 0, "present": false }, { "factor": "mrsa_colonization_1yr", "points": 0, "present": false } ], "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": "Webb BJ, Dascomb K, Stenehjem E, et al.", "doi": "10.1128/AAC.03071-15", "id": "webb-2016", "pmid": "26856838", "source": "Antimicrob Agents Chemother. 2016;60(5):2652-2663", "title": "Derivation and multicenter validation of the drug resistance in pneumonia clinical prediction score" }, "formula": "drip", "formula_expression": "DRIP = antibiotics_60d (2) + long_term_care (2) + tube_feeding (2) + prior_drp_1yr (2) + hospitalization_60d (1) + chronic_pulmonary_disease (1) + poor_functional_status (1) + gastric_acid_suppression (1) + wound_care (1) + mrsa_colonization_1yr (1); max 14; high_risk iff score >= 4", "max_score": 14, "score": 0, "high_risk": false } ] } ``` ## Response fields - `formula` (string): drip - `formula_expression` (string): Exact expression used - `score` (integer): DRIP points 0-14 (Webb 2016) - `max_score` (integer): 14 - `high_risk` (boolean): true iff score ≥ 4 (Webb 2016 cutoff). Not an antibiotic order and not a diagnosis of drug-resistant pneumonia. - `components` (array): Per-factor points - `citation` (object): Webb et al. AAC 2016 citation - `disclaimer` (string): Not-a-device notice ## Example JSON Frozen fixture. Not a live lookup. ```json { "components": [ { "factor": "antibiotics_60d", "points": 0, "present": false }, { "factor": "long_term_care", "points": 0, "present": false }, { "factor": "tube_feeding", "points": 0, "present": false }, { "factor": "prior_drp_1yr", "points": 0, "present": false }, { "factor": "hospitalization_60d", "points": 0, "present": false }, { "factor": "chronic_pulmonary_disease", "points": 0, "present": false }, { "factor": "poor_functional_status", "points": 0, "present": false }, { "factor": "gastric_acid_suppression", "points": 0, "present": false }, { "factor": "wound_care", "points": 0, "present": false }, { "factor": "mrsa_colonization_1yr", "points": 0, "present": false } ], "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": "Webb BJ, Dascomb K, Stenehjem E, et al.", "doi": "10.1128/AAC.03071-15", "id": "webb-2016", "pmid": "26856838", "source": "Antimicrob Agents Chemother. 2016;60(5):2652-2663", "title": "Derivation and multicenter validation of the drug resistance in pneumonia clinical prediction score" }, "formula": "drip", "formula_expression": "DRIP = antibiotics_60d (2) + long_term_care (2) + tube_feeding (2) + prior_drp_1yr (2) + hospitalization_60d (1) + chronic_pulmonary_disease (1) + poor_functional_status (1) + gastric_acid_suppression (1) + wound_care (1) + mrsa_colonization_1yr (1); max 14; high_risk iff score >= 4", "max_score": 14, "score": 0, "high_risk": false } ``` ## Errors - HTTP 400 `invalid_flag`: boolean clinical flags must be true or false Returned before settlement; you are not charged. - HTTP 400 `invalid_drip`: each DRIP flag must be true or false (Webb 2016). Returned before settlement; you are not charged. - HTTP 400 `invalid_items`: POST body must be a JSON object with only an items array Returned before settlement; you are not charged. - HTTP 400 `invalid_item_count`: items must be an array of 1 to 25 objects Returned before settlement; you are not charged. - HTTP 400 `invalid_item`: each items entry must be a JSON object Returned before settlement; you are not charged. Shared HTTP 402 and 503: https://magentlab.com/docs/payments ## Related tools - [CURB-65](https://magentlab.com/docs/curb65) — Compute the CURB-65 community-acquired pneumonia severity score from age and discrete flags. - [PSI / PORT](https://magentlab.com/docs/psi-port) — Compute the Fine 1997 Pneumonia Severity Index (PORT) two-step risk class and Table 2 point total for community-acquired pneumonia. ## 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. - GET the tool with Accept: application/json (do not send Accept: text/html unless you want the human paywall). - HTTP 402 means you have not paid. Decode the base64 PAYMENT-REQUIRED header. HTTP 503 is not a new quote. - Sign accepts[0] (exact, EIP-3009) with validBefore = now + maxTimeoutSeconds (600 seconds), or accepts[1] (batch-settlement deposit/voucher) on product GET. Ping and POST {items} stay exact. Magent retries transient facilitator 429/5xx before answering. - Retry the same URL with PAYMENT-SIGNATURE (base64 JSON of accepted and payload). Magent attaches canonical extensions.bazaar on CDP verify/settle; echoing 402 bazaar is optional. - Success is HTTP 200 JSON plus PAYMENT-RESPONSE. exact settles before the tool. batch-settlement verifies (and deposit-settles) before the tool and commits the charge after HTTP 2xx. HTTP 503: retry the same PAYMENT-SIGNATURE. Mint a new exact nonce only after a new HTTP 402. - offered `exact` on eip155:8453: Fixed-price USDC on Base. The buyer authorizes the advertised amount (EIP-3009). magent settles before the tool runs (paymentFlow upfront). extra.assetTransferMethod=eip3009 extra.paymentFlow=upfront. - offered `batch-settlement` on eip155:8453: Payment-channel vouchers claimed later in batches. Exact stays accepts[0]. Same-path POST {items} is still exact. extra.assetTransferMethod=eip3009 extra.paymentFlow=authorization. - not offered `upto`: Not offered. Usage-based: buyer authorizes a ceiling, seller settles the actual amount after work. Reserved for a future metered tool. Not for current calculators or code search. Same-path POST {items} is still scheme exact: one EIP-3009 authorization for GET unit plus $0.002 per extra item. That is not x402 batch-settlement (payment channels / vouchers). Shared HTTP 402 and 503 table: https://magentlab.com/docs/payments Stdio MCP (one process per host): https://magentlab.com/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.