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Anaesthesia / ICU B

TISS-28 — Therapeutic Intervention Scoring System

Measures ICU nursing workload and patient acuity. TISS-28 is a simplified 28-item version. Score reflects interventions required in 24 hours.

Score interpretation

Low Acuity (TISS 0–10) 0–10

Low nursing workload. Step-down/monitoring level appropriate.

→ Consider transfer to step-down unit. One nurse can care for 2–3 patients.

Moderate Acuity (TISS 11–20) 11–20

Moderate workload. Close monitoring required.

→ HDU or ICU-step care. Nurse:patient ratio 1:1–1:2.

High Acuity (TISS 21–40) 21–40

High workload. ICU-level care required.

→ ICU admission. 1:1 nursing. Daily organ support review.

Very High Acuity (TISS >40) 41–200

Very high workload. Complex multi-organ support.

→ Specialist ICU. May require >1 nurse. Senior critical care review.

Interpretation bands for the TISS-28. Apply clinical judgement and local guidance.

References

Related

Curated clinical cross-links plus same-class fallbacks.

Decision support only — verify against a current formulary, NICE, or your local guideline before clinical use.