RRT NATIONAL BOARD EXAM REVIEW- 2025
(INFORMATION OBTAINED FROM
RESPIRATORY CARE EXAM REVIEW- GARY
PERSING) QUESTIONS & ANSWERS RATED
100% CORRECT!!
what are the 3 reason O2 is given?
decrease WOB, Tx hypoxemia, decrease myocardial work
Radiolucent
dark air pattern
radiodense
white pattern solid fluid
infiltrate
any ill defined radio density
consolidation
solid white area
hyperlucency
extra pulmonary air
vascular markings
Lymphatic vessels lung tissue ( increased markings in CHF, decreased markings with
pneumothorax)
diffuse
spread throughout
opaque
fluid/solid
Fluffy infiltrates (Kurley A)
pulmonary edema (cardiogenic)
,butterfly/bat wing
pulmonary edema (non cardiogenic )
patchy/platelike infiltrates
atelectasis
ground glass appearance (reticulograndular)
ARDS/IRDS
honeycomb (reticulondular)
ARDS/IRDS/ILD
air bronchogram
pneumonia/ edema
Peripheral wedge-shaped infiltrate
pulmonary embolism
concanve superior interface/ border
pleura effusion
Basilar infiltrates with meniscus
pleura effusion
bleb
air filled pocket > 1 cm
bullae
air filled pocket < 1 cm
white/gray sputum
asthma/ chronic bronchitis
bright red sputum (Hemoptysis)
fresh blood, tumor, TB
yellow sputum
increased WBC, bacterial infection
, brown/ dark sputum
old blood
pink froth
pulmonary edema
green foul smelling
Pseudomonas or anaerobic infection
green sputum
stagnant sputum, gram negative bacteria (bronchiectasis, pseudomonas)
normal PaO2 range
80-100 mm Hg
Mild Hypoxia range
60-80 mm Hg
moderate hypoxia range
40-60 mm Hg
severe hypoxia range
<40
calculation for total room air
100-x/x-21 (< or equal to 40% FiO2)
100-x/x-20 (> 40% FiO2)
calculation for total flow
air : O2 ratio > air + O2 x LPM
Calculate how many LPM patient is receiving
air + O2 / total flow
AHI ranges (Sleep Apnea)
<5 normal
5-15 mild sleep apnea
(INFORMATION OBTAINED FROM
RESPIRATORY CARE EXAM REVIEW- GARY
PERSING) QUESTIONS & ANSWERS RATED
100% CORRECT!!
what are the 3 reason O2 is given?
decrease WOB, Tx hypoxemia, decrease myocardial work
Radiolucent
dark air pattern
radiodense
white pattern solid fluid
infiltrate
any ill defined radio density
consolidation
solid white area
hyperlucency
extra pulmonary air
vascular markings
Lymphatic vessels lung tissue ( increased markings in CHF, decreased markings with
pneumothorax)
diffuse
spread throughout
opaque
fluid/solid
Fluffy infiltrates (Kurley A)
pulmonary edema (cardiogenic)
,butterfly/bat wing
pulmonary edema (non cardiogenic )
patchy/platelike infiltrates
atelectasis
ground glass appearance (reticulograndular)
ARDS/IRDS
honeycomb (reticulondular)
ARDS/IRDS/ILD
air bronchogram
pneumonia/ edema
Peripheral wedge-shaped infiltrate
pulmonary embolism
concanve superior interface/ border
pleura effusion
Basilar infiltrates with meniscus
pleura effusion
bleb
air filled pocket > 1 cm
bullae
air filled pocket < 1 cm
white/gray sputum
asthma/ chronic bronchitis
bright red sputum (Hemoptysis)
fresh blood, tumor, TB
yellow sputum
increased WBC, bacterial infection
, brown/ dark sputum
old blood
pink froth
pulmonary edema
green foul smelling
Pseudomonas or anaerobic infection
green sputum
stagnant sputum, gram negative bacteria (bronchiectasis, pseudomonas)
normal PaO2 range
80-100 mm Hg
Mild Hypoxia range
60-80 mm Hg
moderate hypoxia range
40-60 mm Hg
severe hypoxia range
<40
calculation for total room air
100-x/x-21 (< or equal to 40% FiO2)
100-x/x-20 (> 40% FiO2)
calculation for total flow
air : O2 ratio > air + O2 x LPM
Calculate how many LPM patient is receiving
air + O2 / total flow
AHI ranges (Sleep Apnea)
<5 normal
5-15 mild sleep apnea
