RRT NATIONAL BOARD EXAM REVIEW
-2020 EXAM WITH CORRECT
QUESTIONS AND ANSWERS 2025
what are the 3 reason O2 is given? - CORRECT-ANSWERS-decrease WOB, Tx
hypoxemia, decrease myocardial work
Radiolucent - CORRECT-ANSWERS-dark air pattern
radiodense - CORRECT-ANSWERS-white pattern solid fluid
infiltrate - CORRECT-ANSWERS-any ill defined radio density
consolidation - CORRECT-ANSWERS-solid white area
hyperlucency - CORRECT-ANSWERS-extra pulmonary air
vascular markings - CORRECT-ANSWERS-Lymphatic vessels lung tissue
( increased markings in CHF, decreased markings with pneumothorax)
diffuse - CORRECT-ANSWERS-spread throughout
opaque - CORRECT-ANSWERS-fluid/solid
Fluffy infiltrates (Kurley A) - CORRECT-ANSWERS-pulmonary edema (cardiogenic)
butterfly/bat wing - CORRECT-ANSWERS-pulmonary edema (non cardiogenic )
patchy/platelike infiltrates - CORRECT-ANSWERS-atelectasis
ground glass appearance (reticulograndular) - CORRECT-ANSWERS-ARDS/IRDS
honeycomb (reticulondular) - CORRECT-ANSWERS-ARDS/IRDS/ILD
air bronchogram - CORRECT-ANSWERS-pneumonia/ edema
Peripheral wedge-shaped infiltrate - CORRECT-ANSWERS-pulmonary embolism
concanve superior interface/ border - CORRECT-ANSWERS-pleura effusion
,Basilar infiltrates with meniscus - CORRECT-ANSWERS-pleura effusion
bleb - CORRECT-ANSWERS-air filled pocket > 1 cm
bullae - CORRECT-ANSWERS-air filled pocket < 1 cm
white/gray sputum - CORRECT-ANSWERS-asthma/ chronic bronchitis
bright red sputum (Hemoptysis) - CORRECT-ANSWERS-fresh blood, tumor, TB
yellow sputum - CORRECT-ANSWERS-increased WBC, bacterial infection
brown/ dark sputum - CORRECT-ANSWERS-old blood
pink froth - CORRECT-ANSWERS-pulmonary edema
green foul smelling - CORRECT-ANSWERS-Pseudomonas or anaerobic infection
green sputum - CORRECT-ANSWERS-stagnant sputum, gram negative bacteria
(bronchiectasis, pseudomonas)
normal PaO2 range - CORRECT-ANSWERS-80-100 mm Hg
Mild Hypoxia range - CORRECT-ANSWERS-60-80 mm Hg
moderate hypoxia range - CORRECT-ANSWERS-40-60 mm Hg
severe hypoxia range - CORRECT-ANSWERS-<40
calculation for total room air - CORRECT-ANSWERS-100-x/x-21 (< or equal to 40%
FiO2)
100-x/x-20 (> 40% FiO2)
calculation for total flow - CORRECT-ANSWERS-air : O2 ratio > air + O2 x LPM
Calculate how many LPM patient is receiving - CORRECT-ANSWERS-air + O2 / total
flow
AHI ranges (Sleep Apnea) - CORRECT-ANSWERS-<5 normal
5-15 mild sleep apnea
, 15-30 moderate sleep apnea
>30 server sleep apnea
normal TLC value - CORRECT-ANSWERS-6,000 cc
normal RV value - CORRECT-ANSWERS-1,200 cc
normal VC value - CORRECT-ANSWERS-4,800 cc
normal FRC value - CORRECT-ANSWERS-2,400 cc
normal IC value - CORRECT-ANSWERS-3,600 cc
normal ERV value - CORRECT-ANSWERS-1,000 cc
normal Vt value - CORRECT-ANSWERS-500 cc
normal IRV value - CORRECT-ANSWERS-3,100 cc
normal ICP range - CORRECT-ANSWERS-5 - 15 mmHg. Maintain below 20
mmHg** ( if patient is on vent, maintain low PaCO2, increased PaCO2 will
increase ICP)
normal pH range - CORRECT-ANSWERS-7.35-7.45
normal PaCO2 range - CORRECT-ANSWERS-35-45 mm Hg
normal PaO2 range - CORRECT-ANSWERS-80-100 mm Hg
Normal HCO3 range - CORRECT-ANSWERS-22-26 mEq/L
normal cc/kg IBW for ventilated patient - CORRECT-ANSWERS-6-8 cc/ kg
cc/kg IBW for ARDS ventilated patient - CORRECT-ANSWERS-4-6 cc/kg
critical pH range for non compensated patients - CORRECT-ANSWERS-<7.25 or > 7.55
normal PaO2 range for COPD - CORRECT-ANSWERS-55-65 mm hg (** if PaO2 >70
mm hg the patients critical pH range for non compensated patients hypoxic
drive will be decreased)
-2020 EXAM WITH CORRECT
QUESTIONS AND ANSWERS 2025
what are the 3 reason O2 is given? - CORRECT-ANSWERS-decrease WOB, Tx
hypoxemia, decrease myocardial work
Radiolucent - CORRECT-ANSWERS-dark air pattern
radiodense - CORRECT-ANSWERS-white pattern solid fluid
infiltrate - CORRECT-ANSWERS-any ill defined radio density
consolidation - CORRECT-ANSWERS-solid white area
hyperlucency - CORRECT-ANSWERS-extra pulmonary air
vascular markings - CORRECT-ANSWERS-Lymphatic vessels lung tissue
( increased markings in CHF, decreased markings with pneumothorax)
diffuse - CORRECT-ANSWERS-spread throughout
opaque - CORRECT-ANSWERS-fluid/solid
Fluffy infiltrates (Kurley A) - CORRECT-ANSWERS-pulmonary edema (cardiogenic)
butterfly/bat wing - CORRECT-ANSWERS-pulmonary edema (non cardiogenic )
patchy/platelike infiltrates - CORRECT-ANSWERS-atelectasis
ground glass appearance (reticulograndular) - CORRECT-ANSWERS-ARDS/IRDS
honeycomb (reticulondular) - CORRECT-ANSWERS-ARDS/IRDS/ILD
air bronchogram - CORRECT-ANSWERS-pneumonia/ edema
Peripheral wedge-shaped infiltrate - CORRECT-ANSWERS-pulmonary embolism
concanve superior interface/ border - CORRECT-ANSWERS-pleura effusion
,Basilar infiltrates with meniscus - CORRECT-ANSWERS-pleura effusion
bleb - CORRECT-ANSWERS-air filled pocket > 1 cm
bullae - CORRECT-ANSWERS-air filled pocket < 1 cm
white/gray sputum - CORRECT-ANSWERS-asthma/ chronic bronchitis
bright red sputum (Hemoptysis) - CORRECT-ANSWERS-fresh blood, tumor, TB
yellow sputum - CORRECT-ANSWERS-increased WBC, bacterial infection
brown/ dark sputum - CORRECT-ANSWERS-old blood
pink froth - CORRECT-ANSWERS-pulmonary edema
green foul smelling - CORRECT-ANSWERS-Pseudomonas or anaerobic infection
green sputum - CORRECT-ANSWERS-stagnant sputum, gram negative bacteria
(bronchiectasis, pseudomonas)
normal PaO2 range - CORRECT-ANSWERS-80-100 mm Hg
Mild Hypoxia range - CORRECT-ANSWERS-60-80 mm Hg
moderate hypoxia range - CORRECT-ANSWERS-40-60 mm Hg
severe hypoxia range - CORRECT-ANSWERS-<40
calculation for total room air - CORRECT-ANSWERS-100-x/x-21 (< or equal to 40%
FiO2)
100-x/x-20 (> 40% FiO2)
calculation for total flow - CORRECT-ANSWERS-air : O2 ratio > air + O2 x LPM
Calculate how many LPM patient is receiving - CORRECT-ANSWERS-air + O2 / total
flow
AHI ranges (Sleep Apnea) - CORRECT-ANSWERS-<5 normal
5-15 mild sleep apnea
, 15-30 moderate sleep apnea
>30 server sleep apnea
normal TLC value - CORRECT-ANSWERS-6,000 cc
normal RV value - CORRECT-ANSWERS-1,200 cc
normal VC value - CORRECT-ANSWERS-4,800 cc
normal FRC value - CORRECT-ANSWERS-2,400 cc
normal IC value - CORRECT-ANSWERS-3,600 cc
normal ERV value - CORRECT-ANSWERS-1,000 cc
normal Vt value - CORRECT-ANSWERS-500 cc
normal IRV value - CORRECT-ANSWERS-3,100 cc
normal ICP range - CORRECT-ANSWERS-5 - 15 mmHg. Maintain below 20
mmHg** ( if patient is on vent, maintain low PaCO2, increased PaCO2 will
increase ICP)
normal pH range - CORRECT-ANSWERS-7.35-7.45
normal PaCO2 range - CORRECT-ANSWERS-35-45 mm Hg
normal PaO2 range - CORRECT-ANSWERS-80-100 mm Hg
Normal HCO3 range - CORRECT-ANSWERS-22-26 mEq/L
normal cc/kg IBW for ventilated patient - CORRECT-ANSWERS-6-8 cc/ kg
cc/kg IBW for ARDS ventilated patient - CORRECT-ANSWERS-4-6 cc/kg
critical pH range for non compensated patients - CORRECT-ANSWERS-<7.25 or > 7.55
normal PaO2 range for COPD - CORRECT-ANSWERS-55-65 mm hg (** if PaO2 >70
mm hg the patients critical pH range for non compensated patients hypoxic
drive will be decreased)
