11 Flashcards
(26 cards)
Operating principle of manual resuscitation bag
Portable hand held device
Delivers positive pressure to airway
Ventilate pt
Common uses of manual resuscitators
Ventilate during CPR and transport
Hyperventilate pre/post suction
Management of mechanically ventilated pts
Standard fittings on manual resuscitator and which attaches to mask or ET tube
15mm inner diameter -> connects to ET/trach
22mm outer diameter -> connects to mask
Types of patient valves and which allow spontaneous inhalation
Spring loaded
Diaphragm: leaf/duckbill/fish (spontaneous)
Good self-inflating mask characteristics
Easy to disinfect/sterilize Standard sizes High FiO2 @ high SV/rate Self inflating Non-rebreathing (one way valve) Adults, peds, and infant sizes
Troubleshooting of manual resuscitator: bag fills quickly but depletes easily
inlet valve
Purpose of pressure relief valve
Prevent excessive pressure in peds/infants
Decrease barotrauma/pneumo
What pressure does a pressure relief valve function off of
40 cmH2O
What effects oxygen concentration delivery of self-inflating resuscitator
Rate O2 flow Refill time Stroke volume Reservoir capacity
Effect of rate on O2 concentration
Faster rate -> decreased FiO2
Slower rate -> increased FiO2
O2 flow effect on O2 concentration
Higher flow -> increased FiO2
Lower flow -> decreased FiO2
Reservoir capacity effect on O2 concentration
no reservoir -> 35-40% @ 10-15lpm
Reservoir present -> up to 100% @ 10-15 lpm
Increased size -> increased FiO2
Refill time effect of O2 concentration
Increased time -> increased FiO2
Decreased time -> decreased FiO2
SV effect on O2 concentration
Increased SV -> decreased FiO2
Decreased SV -> increased FiO2
Observations tho assure ventilation
Rise and fall of chest
Breath sounds
ABG
Oximetry
Hazards of bag-mask resuscitation and how to prevent
Gastric insufflation -> intubate ASAP
Vomit/aspiration -> decreased compliance -> intubate ASAP
Barotrauma -> don’t squeeze until pop-off
Pneumothorax -> one-sided chest rise
Hypoventilation -> use both hands, check bs
Pneumatic resuscitator/demand valve
50 psi source
Press lever
Adults only
Can be triggered by neg pressure
Advantages and disadvantages of pneumatic
Adv -> 100% FiO2, can go solo
Dis -> 50 psi source, cannot feel compliance
Potential hazards of pneumatic
Barotrauma -> gastric distension -> pneumothorax
PEEP valve indications
Pt on PEEP w vent -> match PEEPS
Increase oxygenation when FiO2 insufficient (refractory hypoxemia)
Increase FRC
Effect of PEEP on ABG and how/why
Increase PaO2 -> increasing oxygenation -> pop open alveoli and keep open
Equipment needed for transportation
Mask, stuff for emergency trach
Tank
Affect of aspiration on lung compliance when ventilating a pt with a manual resuscitator
Decreased, squeeze bag harder
As patients lung compliance increases, RT should
Ease up on compression depth
