PCM Stations Flashcards
Percent of O2 in room air
21%
supplemental O2 is necessary when pO2 is below _ mmHg or spO2 below _ mmHg
60 and 90
supplemental O2 is humidified with _ to prevent drying
saline
what is the flow rate and percent of O2 administered via Nasal cannula?
1L/min = 24% O2 plus 4% for each L/min. For example 1L= 24% O2 2L = 28 3L = 32 4L = 35% 5L = 40% 6L= 44%
which type of oxygen mask is without reservoir and ambient gases can be pulled back in. has open ports on both sides of mask for ambient air flow
Rebreather mask
what is the percent of O2 and rate of rebreather masks?
6L/min = 44% O2 7L/min = 48% 8L/min = 52% 9L/min = 56% 10L/min = 60%
which type of oxygen mask has reservoir and ambient gasses cannot be pulled back in. It’s a one way valve from bag to the mouth. Its often used to avoid intubation in pts who cannot open their mouth or have sufficient excursion to breathe on their own
Non-rebreather
What is the flow rate and percent of O2 with non-rebreather masks
6l/min = 60% 7L/min = 70% 8L/min = 80% 9L/min = 90% 10L/min = 100% O2
which type of oxygen masks are used in pts that are hypercapnic with moderate hypoxemia. used esp in COPD pts; allows for highly regulated flow rates
Venturi mask. arterial blood gases and spO2 must be continually monitored
normal forced expiratory flow is _ L/min
385
A narrow curve on PFT indicates
restrictive disease (loss of elasticity)
A scooped out curve on PFT indicates
Obstructive disorders (loss of recoil)
what drug challenge can diagnose asthma?
methacoline
what is the albuterol test used for?
COPD. improvement of PFT by 12% or 200cc after bronchodilators
when determining rhythm, indicate what normal and abnormal for each of the following
A. PR interval
B. QRS complex
C. QT interval
A. Normal <0.2. elongated = First degree AV block; progressive elongation with dropped QRS = 2nd degree AV block; no association between P wave and QRS complex = third degree block
B. Normal <0.12. Longer = BBB block
C. normal = < 0.44; prolonged b electrolyte abnormality, congenital disease, acute MI. elongation –> torsades de points (antipsychotics, abx, antiarhythmics)
