Table 3.
Sources of sound during sleep-protected time in the ICU.
| Factor | Number of patients (%) | Factor | Number of patients (%) |
|---|---|---|---|
| Sound of monitor | 30 (97) | Coughing (P) | 5 (16) |
| Conversations | 26 (84) | Respirator (NP) | 5 (16) |
| Pressure reliving mattress | 25 (81) | Respirator (P) | 4 (13) |
| Closing of a waste bin | 24 (77) | Snoring (NP) | 4 (13) |
| Syringe/IV drip changed (P) | 22 (71) | Sound of water in bathroom (IR) | 4 (13) |
| Syringe/IV drip changed (NP) | 16 (52) | Telephone ringing | 3 (10) |
| Infusion pump alarm | 16 (52) | Fan | 3 (10) |
| Change of dialysate bags | 15 (48) | Fireworks display outside | 2 (7) |
| Oxygen therapy | 10 (32) | Nebulisation | 2 (7) |
| Disposable nappy change | 9 (29) | Delirium | 2 (7) |
| Snoring (P) | 8 (26) | Chest tube drainage (P) | 1 (3) |
| Radio | 6 (19) | Chest tube drainage (NP) | 1 (3) |
| Airway suctioning (P) | 5 (16) | Dyspnoea (P) | 1 (3) |
| Airway suctioning (NP) | 5 (16) | Warm air device | 1 (3) |
| Agitation (NP) | 5 (16) | New admission | 1 (3) |
IV—intravenous, NP—nearby patient, P—patient.