7a. Trauma Evaluation - Chest Flashcards
how many anterior ribs is good inspiration for PA chest
5 ant ribs
what shows good positioning for PA chest in terms of rotation
medial clavicles equidistant to spinous processes
what shows good positioning for PA chest in terms of lordosis/kyphosis
clavicles should be projected over the 3/4th post ribs
what are the 5 common densities on a CXR
bone soft tissue fat air iatrogenic
what does iatrogenic
placed in by doctor
what are the 4 locations of interest for evaluation in a CXR
mediastinum
lungs
pleura
chest wall
what 4 things create densities
water
pus
blood
cells
what creates lucencies
air
what are 2 common pathologies of the lung
consolidation
tumors
what are 2 common pathologies of the pleura
pleural effusion
pneumothorax
what are 2 common pathologies of the mediastinum
enlarged heart
mediastinal nodes
what are 2 common lung densities
consolidations and masses/nodes
what is an example of what a consolidation can be in the chest
infection
what is an example of what masses and nodes can be in the chest
cancer
what is a silhouette sign
loss of normal borders between 2 adjacent soft tissue structures (eg losing the heart border)
what is the silhouette sign used for
locating area of consolidation
if there is a right paratracheal stripe in the xray which lobe of the lung is the consolidation in
right upper lobe
if the right heart border is obscured in the xray which lobe of the lung is the consolidation in
right middle lobe
if the right hemi diaphragm is obscured in the xray which lobe of the lung is the consolidation in
right lower lobe
if the aortic knuckle is obscured in the xray which lobe of the lung is the consolidation in
left upper lobe
if the left heart border is obscured in the xray which lobe of the lung is the consolidation in
lingula segments of the left upper lobe
if the left hemi diaphragm or descending is obscured in the xray which lobe of the lung is the consolidation in
left lower lobe
can you tell the difference on images between blood, pus, water and tumor cells from an xray
no you need clinical history
what is the air bronchogram sign
air filled bronchi remain patent and visible on image as there is contrast between the air in the bronchi and the fluid in the alveoli
sign of bronchi that are not filled with fluid and are filled with air and run through infection
what is the air bronchogram used for
occur with conditions such as cancers but are most commonly associated with infective consolidations such as pneumonia
shows its not a solid mass so likely to be a infection