Flashcards in Midterm Deck (47):
What is the cylinder factor for an E tank?
What is the cylinder factor for an H tank?
What is the pressure of a tank when full?
What is the pressure of a tank that's been fit tested?
How do you find the duration of flow for a tank?
(pressure x cylinder) / flow
What is a PISS system?
yoke type of system with different pin holes for different types of gas cylinders (6 holes with 10 combinations)
What is a DISS system?
external and internal threads and a nut that all match/go with the same gas so you can't cross thread between different gases
What is an air entrainment system?
direct high pressure oxygen source through a small jet surrounded by air entrainment ports
How does the amount of air entrained by air entrainment systems vary?
directly with the size of the port and the velocity of oxygen at the jet (the larger the intake ports and the higher the gas velocity at the jet, the more air is entrained)
How does the amount of air entrained affect the flow and FiO2?
the higher the total output flow and the delivered FiO2 is lower
Air to oxygen ratio
(100-x) / (x-21)
How do you calculate total flow?
(air + O2) x flow
What is absolute humidity?
The amount of water extracted from air
What is relative humidity?
the ratio of its actual water vapor content to its saturated capacity at a given temperature (the gas' water vapor when not fully saturated)
What is body humidity?
ratio of its actual water vapor content to the water vapor capacity in saturated gas at body temperature (37degreesC)
What is humidity deficit?
the amount of water vapor the body must add to the inspired gas to achieve saturday at body temperature
-for every 30 compressions, give 2 breaths
-give 1 breath for every 5 seconds when bagging
What is a bourdon gage?
an uncompensated regulator that is used for transport (fixed orifice)
What is a thorpe tube flow meter?
a compensated flow meter that attaches to a 50 psi gas source (variable orifice)
up to 6 L/min, but must use a humidifier if 4 L/min or higher
minimum of 10 L/min
minimum of 10 L/min and inspiration the bag must be full and prevented from collapsing
Small volume nebulizer
Large volume nebulizer
should see mist coming out
Air entrainment mask
flow should be >60 L/min
High flow nasal cannula
up to 40 L/min
What is normal flow?
What happens if you have a bigger jet nozzle?
-condensation or kinking: decreases flow and increases FiO2, and RAW increases
-whistling indicates a leak or tube is obstructed (pressure relief valve)
What does oxygen therapy do?
-decreases: work of breathing, shortness of breath, heart rate and respiratory rate
-increases: SpO2 and PaO2
What is the normal systolic range for BP?
What is the normal diastolic range for BP?
What is the normal pulse pressure?
What is the normal respiratory rate?
What is a normal pulse?
What is normal SpO2?
What is normal PaO2
What is eupnea?
normal, relaxed breathing
What is hyperpnea?
increased depth of breathing
What is orthopnea?
shortness of breath when lying flat
What is platypnea?
shortness of breath when sitting up
What is dyspnea?
shortness of breath
What is paroxysmal nocturnal asthma?
severe shortness of breath and coughing that generally occurs at night, and is relieved in the upright position
What is biot's breathing?
clustering of rapid, shallow breaths coupled with regular or irregular periods of apnea caused by damage to brain from stroke or trauma
What is cheyne stokes breathing?
irregular type of breathing; breaths increase and decrease in both depth and rate with periods of apnea caused by CHF and severe brain injurt