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rrt review

imaging studies

what would a normal chest x-ray show? trachea is midline, bilateral radiolucency, with sharp costophrenic angles
what can cause a loss of airway patency? foreign body obstruction, edema such as croup or epiglottitis or allergic reaction, tracheal spasms, internal or external compression or a trauma leading to air leak
where should the tip of the ETT be positioned on chest x ray below the vocal cords and no closer than 2cm or 1 inch above the carina. which is also the same level of the aortic knob or aortic arch. (if above the clavicle it is to high.)
where should the pacemaker be positioned? in right ventricle
where should the pulmonary artery catheter appear in the right lower lung field
where should the central venous catheter be placed? in the right or left subclavial or juhular vein and should rest in the vena cava or right atrium of the heart
where should a chest tube be located ? in the pleural space surrounding the lung
where should the nasogastric tubes and feeding tubes be located? in the stomach 2-5 cm below the diaphragm
croup or laryngotracheobronchitis will look like what on a x ray of the neck? a steeple sign , picket fence or a pencil point
epiglottitis will show what on a lateral neck x ray? supraglottic narrowing with enlarged and flattened epidlottis and swollen aryepiglottic folds. this is known as thumb sign
besides croup and epiglottitis what will cause airway narrowing edema,secreations, tumors, aspiration of a foreign body
what is raidiolucent on a chest x ray? Air it is a dark pattern which in normal in the lungs
what is radiodense/opacity on a chest x ray? its solid or fluid it is a white pattern which is normal for bones and organs
what diagnosis would you have if your chest x ray had infiltrates? atelectasis
what diagnosis would you have if your chest x ray had a consolidation? pneumonia or pleural effusion
what diagnosis would you have if your chest x ray showed hyperlucency COPD or asthma attack
what dose a increase in vascular markings mean? CHF
if vascular markings are absent this would mean pneumothorax
how would pulmonary edema show up on a chest x ray ? fluffy infiltrates might have a butterfly/ batwing pattern
how would atelectasis show up on chest x ray? pattchy or platelike infiltrates
how would ARDS or IRDS show up on chest x ray ? ground glass appearance, honeycomb pattern, diffuse bilateral radiopacity
how would pleural effusion show up on chest x ray? concave superior interface/border or basilar infiltrates with meniscus