Which of the following signs observed on a mechanically ventilated patient indicate that successful weaning is unlikely?
1) Palpable scalene muscle use during inspiration
2) Palpable abdominal tensing during expiration
3) Presence of an irregular breathing pattern
4) Patient unable to alter breathing pattern on command
A)2 and 4 only
B)1, 2, and 3 only
C)3 and 4 only
D)1, 2, 3, and 4

Question

Quizplus · Accepted Answer

All of the signs listed indicate that the patient may have difficulty weaning from mechanical ventilation. Palpable scalene muscle use during inspiration suggests an increased effort to breathe. Palpable abdominal tensing during expiration suggests increased work of breathing and may be a sign of respiratory muscle fatigue. An irregular breathing pattern may be a sign of difficulty coordinating breaths or maintaining a stable respiratory rhythm. If the patient is unable to alter their breathing pattern on command, it suggests an impaired ability to initiate or sustain spontaneous breathing efforts, which would make weaning more difficult.

Which of the Following Signs Observed on a Mechanically Ventilated