Chest X-Rays Flashcards Preview

Respiratory > Chest X-Rays > Flashcards

Flashcards in Chest X-Rays Deck (19):
1

what are the disadvantages of an AP X-ray

can see the scapulae
magnifies the heart

2

what is the difference between an AP and PA CXR

AP - the x-rays move from the front to the back
PA - the x-rays moves from the back to the front of the patient

3

what is the problem if there is too little penetration on a CXR

may not see pathology behind the heart

4

describe the ABCD interpretation of CXRs

A - airways. look for tracheal shift and the hilum of the lungs
B - breathing. look at the lungs and pleural space
C - circulation. look at the heart, mediastinum and aortic arch
D - diaphragm. look to see if its flat, the costophrenic angle and free air

5

what is a normal cardiac index

50%

6

what is the cardiac index

the ratio between the size of the heart and the size of the thorax

7

on which type of CXR is a cardiac index calculated from

PA
and AP would give an overestimation due to magnification of the heart

8

if there is an increase in pressure in one lung what will happen to the mediastinum

it will get pushed to the other side

9

if there is a decrease in pressure in one lung what will happen to the mediastinum

it will be pulled towards that side

10

what will be seen with pleural effusion

a white area with a meniscus line, loss of the costophrenic angle

11

what will be heard on percussion with a pleural effusion

stony dull percussion

12

what will be heard on percussion with a pneumothorax

hyper resonance

13

what will happen to the mediastinum in a pneumothorax

it is shifted away from that lung due to the increase in pressure

14

what will be seen in lobar collapse

mediastinum shift to collapse
elevation of ipsilateral hemidiaphragm
black air
loss of lung tissue

15

what is heard on percussion with consolidation

dull percussion

16

what is heard on auscultation with consolidation

bronchial breathing and crackling

17

what will you seen on a CXR with emphysema

hyper inflated lungs
flattened diaphragm
loss of costophrenic angle

18

what will be seen on CXR in heart failure

bat wing appearance - fluid in the lung hila (peri-hila shadowing)
hypertrophy - giving a tracheal shift

19

what will be heard on auscultation in heart failure

crackles