Infection Detection
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Case case_0e41c8a5-304d-493e-b25d-49b7c8de81cb

Status: open · suspected: CDI

🤖 AI final determination

Checking for cached AI verdict…

✅ Rule-based evaluator: Meets CDI LabID event — HO (verify the 14-day duplicate rule).

Suspected event type CDI
Date of Event (DoE) 2026-04-16
Hospital day at DoE 5
Onset HO
Infection Window Period —
Repeat Infection Timeframe —
Meets CDI LabID ✅ Yes (verify 14-day duplicate rule separately)
Assay type NAAT/PCR
Why this verdict (5 steps)
  1. Date of Event = 2026-04-16 (from case row).
  2. Admitted 2026-04-12 (HD 1) → DoE on HD 5 → onset = HO.
  3. Assay type recorded: NAAT/PCR.
  4. Single-case verdict: positive *C. difficile* assay on patient ≥1 y → meets CDI LabID event criteria.
  5. **14-day duplicate check** still required — this evaluator only sees the current case. Confirm there is no positive C. difficile in the prior 14 days for this patient at this facility (a positive within 14 days is a duplicate, not a new event).

Patient & admission

Patient ref
MR-CDIFF
Unit
—
Admitted
2026-04-12
Discharged
— still admitted —
Age
75 y
Detected
2026-04-28T22:53:08.065Z

Discharge & validation

Discharge / close the chart

Peer validation

Status: — Not assigned

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Add to case

Cultures, devices, and symptoms can be added as more lab results come in over the next few days.

Organisms

Set the collection date.

Cultures (1)

Type Collected Findings Status
+ stool 2026-04-16
  • NAAT/PCR Clostridioides difficile
Meets CDI LabID (verify 14-day duplicate rule)

Devices (0)

None on file.

Symptoms (0)

None on file.

Hospital-day calendar

Visualizes admission, culture date(s), symptom onset, IWP and RIT windows. Particularly useful for long stays — scroll the table.

Admission (HD 1) Culture date (anchors the IWP) Date of Event (DoE) Infection Window Period (culture ± 3 d) Repeat Infection Timeframe (DoE through DoE + 13 d) Symptom onset
HDDateAdmissionCultureSymptomDoE IWP RIT
HD 12026-04-12🏥
HD 22026-04-13 ✓
HD 32026-04-14 ✓
HD 42026-04-15 ✓
HD 52026-04-16🧪 Culture🎯 DoE ✓ ✓
HD 62026-04-17 ✓ ✓
HD 72026-04-18 ✓ ✓
HD 82026-04-19 ✓ ✓
HD 92026-04-20 ✓
HD 102026-04-21 ✓
HD 112026-04-22 ✓
HD 122026-04-23 ✓
HD 132026-04-24 ✓
HD 142026-04-25 ✓
HD 152026-04-26 ✓
HD 162026-04-27 ✓
HD 172026-04-28 ✓
HD 182026-04-29 ✓
HD 192026-04-30

The IWP (2026-04-13 to 2026-04-19) is anchored on the culture date per NHSN PSC Ch.2 — symptoms inside it count toward the surveillance criteria; symptoms outside don't. The Date of Event (DoE) is 2026-04-16 — the urine culture is the earliest criterion element (no qualifying symptom precedes it). The RIT (2026-04-16 to 2026-04-29) is the 14-day window during which no new event of the same type can be reported, anchored on DoE (DoE through DoE + 13).