{
  "schema": "upg.factor.v1",
  "id": "ptce/top200/lasa",
  "exam": [
    "PTCE"
  ],
  "confidence": 0.97,
  "updated_at": "2026-09-07",
  "token_cost_hint": 220,
  "integrity": "practice_only",
  "domain": "Medications / Patient Safety",
  "title": "LASA \u2014 look-alike / sound-alike names",
  "claim": "Look-alike and sound-alike (LASA) drug names are a known source of dispensing errors. ISMP publishes a List of Confused Drug Names (including pairs used with tall man lettering) to highlight pairs that have been confused in practice.",
  "plain": "If two names look or sound close, slow down: purpose on the Rx, tall man lettering, barcode. ISMP keeps the confused-names list current.",
  "citations": [
    {
      "authority": "ISMP List of Confused Drug Names",
      "url": "https://www.ismp.org/system/files/resources/2023-10/ISMP_ConfusedDrugNames_2023.pdf",
      "pin": "ISMP Confused Drug Names (LASA) 2023",
      "retrieved_at": "2026-09-07",
      "quote": "This list of confused drug names, which includes look-alike and sound-alike name pairs, consists of those name pairs that have been published in the ISMP Medication Safety Alert!"
    }
  ],
  "html": "/factors/ptce/top200/lasa",
  "json": "/factors/ptce/top200/lasa.json"
}