03: IPPB Flashcards
Define IPPB
Intermittent positive pressure breathing
Goals of IPPB
#1 short term vent support Lung expansion Deliver aerosol (pt w muscle fatigue)
Indications for IPPB
#1 true: increase ventilation in pt unable to take deep breath Unsuccessful IS Prevent/treat atelectasis Inability to move secretions/cough Alternate to mechanical ventilation Decrease dyspnea
Absolute contraindication of IPPB
Untreated tension pneumothorax
Relative contraindications for IPPB
Increased ICP Face surgery Tracheoesophogeal fistula Nausea TB Hemoptysis Hemodynamic instability Blebs (increases barotrauma)
IPPB tx hazards
#1: increased Raw and WOB Barotrauma Hyperventilation Hyperoxia O2 induced hypoventilation Decreased venous return Increased alveolar dead space Impacted secretions Increase VQ mismatch
How to minimize decreased venous return
Decrease pressure to increase ventilation
Adverse reactions to IPPB
Pneumothorax
Pulmonary edema
Patients benefitting from IPPB
Atelectasis
Neuromuscular diseases
Abnormal chest circumference -> decreased LV
IPPB effect on WOB
Decrease
IPPB effect on ventilation
Decreased dyspnea (increasing Vt) Increased oxygenation (1:2)
IPPB blood gas measurements during tx
Increased V/Q
Increased PaO2
Decreased PaCO2
N/increased pH
IPPB effect on cardiovascular function
Improved HR
Decreased venous return
IPPB order should include
Tx to be delivered
Frequency
Duration
Medication
What to monitor during IPPB therapy
Machine performance (sensitivity, peak pressure, inspiratory time, FiO2) Delivered Vt Pt response (appearance/sensorium/LOC) VS Other: skin color, sputum, ICP, CXR
Bird Mark 7 operational principles
Pneumatic Pt triggered (pressure cycled)
What is pressure cycled
Inspiration ends when pressure preset limit has been reached
Initial setting for Bird Mark 7
10-15 cmH2O
Bird Mark 7 controls
Pressure (cycle/stop) Sensitivity (trigger) Flow Air dilution Expiratory timer
Bird mark procedure
Set driving pressure (PIP) Pt triggers machine (decreasing line pressure( Gas moves to aw Preset PIP reached (gas shuts off) Inspiratory phase cycled off
Bird mark 7 trouble shoot: breath/machine wont cycle on
High pressure line -> gas source
Turn on flow
Check sensitivity -> set to autocycle -> then turn back a little
Tight seal, nose clips, etc
Bird Mark 7 troubleshoot: dizzy/finger tingle/light headedness
Pt breathing too deep: relax
Hyperventilation: slow RR