Assisted Ventilation in Acute Respiratory Failure Flashcards Preview

Complexities in Acute Care Part 2 > Assisted Ventilation in Acute Respiratory Failure > Flashcards

Flashcards in Assisted Ventilation in Acute Respiratory Failure Deck (13)
Loading flashcards...
1

Assisted ventilation can maintain a tidal volume via

IPPB (intermittent positive pressure breathing)
or
BIPAP (inspiratory positive airway pressure)

2

Assisted ventilation can increase FRC via

CPAP (continuous positive airway pressure)
or
BIPAP (expiratory positive airway pressure)

3

Assisted ventilation can reduce the work of breathing by supporting inspiration via

IPPB (intermittent positive pressure breathing)
OR
BIPAP (inspiratory positive airway pressure)

4

Assisted ventilation can support failing respiratory muscles and ventilation at the same time via

BIPAP (bilevel positive airway pressure)

5

What is PEEP?

Positive end expiratory pressure

6

So what can BiPAP do? (bilevel positive airway pressure)

1) Maintain a tidal volume (IPAP)
2) Increase FRC (EPAP)
3) Reduce the work of breathing by supporting inspiration
4) Support failing respiratory muscles and ventilation at the same time

7

CPAP (continuous positive airway pressure) increases

functional residual capacity

note: no change in tidal volume

8

IPPB (intermittent positive pressure breathing) is _______ cycled

pressure cycled

9

What is intermittent positive pressure breathing (IPPB)

Simple assisted inspiration with a pressure cycled ventilator

10

Whats a key difference between IPPB and CPAP?

IPPB does not splint airways open at end of expiration like CPAP

11

Whats the advantages of Non-Invasive Ventilation in Acute Respiratory Failure?

- You avoid the complications of intubation
- You reduce the need for sedation
- Improve patient comfort
- Maintain airway defence, speech and swallowing

12

Contraindications and limitations to MASK ventilation?

- Unco-operative or unmotivated patients
- Pts at high risk of aspiration
- Inability to effectively clear secretions
- Haemodynamic instability
- Unstable multiple organ failure
- Inability to fit an acceptable mask

13

Criteria for selecting patients for assisted or mechanical ventilation

- Extremely low RR
- Obvious respiratory muscle fatigue
- Severe respiratory distress
- Profound hypoxaemia
- Depressed mental state, coma or confusion
- Impending cardiopulmonary collapse
- Other evidence from ABG's and CXR

Note: not all patients requiring mechanical ventilation have respiratory problems