مريض في محاولة التنفس التلقائي على الجهاز منذ ٢٠ دقيقة. أي ملاحظة تعني فشل المحاولة؟

A ventilated client has been on a spontaneous breathing trial for 20 minutes. Which finding indicates the trial has failed?

1. Calm breathing at 20 with SpO2 95%
2. Awake and gesturing for water
3. HR 92 and BP 128/76 unchanged
4. RR 38 with sweating, SpO2 86% and HR 132

Answer: D) RR 38 with sweating, SpO2 86% and HR 132. SBT failure signs include marked tachypnoea, desaturation, tachycardia, sweating, anxiety and accessory-muscle use. Support is restored and the cause sought.