CRT TMC RRT QUESTIONS AND
ANSWERS 2025
extra pulmonary air indicates: - correct answer- -pneumothorax
-pneumoperitoneum
-pneumomediastinum
-pneumopericardium
-sub cu. emphysema
Epiglottitis: - correct answer- -above glottis
-confirm with lat. neck cxr; supraglottic narrowing with enlarged
flattened epiglottis
-thumb sign
Tx: intubate
Croup (laryngotracheobronchitis) - correct answer- infection of
upper airway characterized by a barky cough seen in children
CXR: tracheal narrowing with subglottic swelling (steeple sign,
picket fence, pencil point, hour glass)
Treatment: racemic epi and O2
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ETT Placement: - correct answer- 2-6 cm above carina-- level
of aortic arch
To confirm- first listen to breath sounds, then CXR
AP radiograph: - correct answer- front to back
PA radiograph - correct answer- back to front
Lateral radiograph - correct answer- sides
Oblique CXR - correct answer- standing/diagonal- lesions
Lateral decubitus - correct answer- lying on AFFECTED side--
pleural effusions
Apical lordotic - correct answer- tops of lungs used to confirm
TB
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End exp. image - correct answer- detect small pnuemos
Confirming quality of CXR image - correct answer- - clavicles
are level
- penetration- vertabrae visible just behind heart
-mediastinum- area between lungs, heart, blood vessels and
bronchi are found
-vascular markings
Enlarged Heart in CXR - correct answer- cardiomegaly--- CHF-
pericardial effusion
Normal CXR - correct answer- -hemidiaphragms
-R diaphragm elevated (liver underneath)
-L diaphragm at level of 6 anterior rib
-trachea midline
-bilateral radiolucent appearance
-sharp costophrenic angles
- heart not consuming 50% of picture
Blood Pressure - correct answer- 120/80
90-140 systolic acceptable