Mechanical Ventilation Flashcards
F/RR
Frequency /RR (12-20bpm)
fio2
Fraction /percent of inspired o2
Anywhere between 21% -100
I:e ratio
Inspiration time compared to expiratory time (1:2)
PEEP
Positive and expiratory pressure ( 5-10 cm H2O)
Can go all the way up to 15 on high peep but sometimes can be at 5 to keep alveolar open and to keep it from collapsing during expiration
PIP
Peak inspiratory pressure ( 15-20 cmh20)
max pressure for inspiration
Resistance pressure From air flowthe ventilator all the way that goes down to bronchi
Can be effected by mucous plugging, bronchospasms, kink in the tubing
VE
Minute ventilation /volume ( vtxRR) (6-8l/min)
Amount of air delivered to pt in one minute
VT
Tidal volume ( 6-8 L/kg- ideal body weight ) (very sick lungs use to 4-6 ml/kg
How big the breath is .. the volume that is delivered with each breath
S/s of o2 toxicity from ventilated patients
Restlessness, Dyspnea, chest discomfort, fatigue , atelectasis
Barotrauma
When increased airway pressure distends the lungs and possibly ruptures fragile alveoli or emphysemtous bless ( pt with non compliant lungs such as COPD) at greater risk for this
Ventilator associated pneumonia (VAP)
Pneumonia that occurs 48 hours or more after ET intubation
Low pressure alarm
Cuff leak
Leak in the ventilator circuit
Patient stops breathing in the pressure support modes of SIMV
Unintentional extubation
Tube disconnected from circuit
Barotrauma
Cuff leak
Assess for cuff leak , check cuff pressure , call RT and physician
Leak in the ventilator circuit
Assess all connections and tubing call RT and physician , a new ventilator may be needed
Patient stops breathing in the pressure support modes of SIMV
Assess the pt notify RT and physician may need to provide manual breathes via BVM
Unintentional extubation
Assess pt for need to be reintubated, apply o2, may need to give manual breaths via BVM
Tube disconnects from circuit
Reconnect tubing to circuit ; assess pt
Barotrauma
Assess subq emphysema - notify RT and physician if present
High pressure alarm
Mucous plug or increased secretion
Pt bites ETT
Pneumothorax
Pt anxious and fighting the ventilator
Kink in the tubing
Water collected in the ventilator tubing
Pt coughing
Bronchospasm
Pulmonary edema
Decreased lung compliance
Mucous plug or increased secretions
Suction as needed
Pt bites ETT
Insert oral airway to prevent biting ( bite block)
Pneumothorax
Assess for asymmetrical chest rise , decreased breath sound over pneumothorax site , notify physician
Pt anxious and fighting the ventilator
Assess the pt, provide emotional support , reevaluate sedation /analgesic need
Kink in the tube
Assess the tubing from ventilator to pt to ensure no kindling of the tube is present
water collected in the ventilator tubing
Empty the water from the tubing
Pt is coughing
Continue to monitor