Mechanical Ventilation Flashcards
1
Q
Room FiO2
A
21%
2
Q
Indications for mechanical ventilation (4)
A
- apena or impending apnea
- acute respiratory failure (pH ≤ 7.25, PaCO2 ≥50)
- severe hypoxia
- respiratory muscle fatigue
3
Q
Preparing for intubation
A
- Ambubag to O2 (15 mL/min)
- Set up suction
- Premedicate
- Intubation box
- Pulse ox
- Explain procedure to patient + family
- Remove dentures
- Hyperventilate
4
Q
After intubation
A
- Hyperventilation
- Inflate with NO leak (20-25 mm/Hg)
- Ausculate for bilateral breath sounds
- O2 sat ≥ 95%
- Check ET position
- Cut excess ET
- Confirm with CXR and ABG 30 min after
5
Q
ET position
- men
- women
A
Men: 23cm
Women: 21cm
6
Q
CMV mode
A
- all done by vent
- pre set volume, pre set rate
7
Q
AC / PRVC mode
A
- vent delivers pre set volume and rate
- but if patient takes their own breath, pre-set volume is still delivered
- for patients who are awake but can’t fully breathe on their own
8
Q
In AC/PRVC mode, the RR will
A
NOT be less than the pre-set rate
9
Q
SIMV
A
- intermittent pre-set volume at set intervals
- But if the patient takes their own breath, they take it at their own volume
- weaning mode
- encourage deep breaths, OOB, suction
10
Q
Pressure Support
A
- positive pressure applied during inspiration to decrease work of breathing
- not set TV
- weaning mode, nocturnal support
11
Q
In Pressure Support, who does all the breaths?
A
Patient
12
Q
PEEP
A
- positive pressure applied during exhalation to prevent alveolar collapse
- 5 = physiologic PEEP
13
Q
PEEP reduces amount of _____ given
A
FiO2
14
Q
Complications of PEEP (3)
A
- barotrauma
- pneumothorax
- hypotension (fix water them first then pump)
15
Q
Vent complications - Cardiovascular
A
- hypotension (water first, then pump!)
