Flashcards in Normal CXR Deck (23)
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1
What is the most common accessory fissure of the lung?
Azygous fissure containing the azygous vein
2
In what condition would the costophrenic angle disappear on an CXR?
Pleural effusion
3
The right hemi-diaphragm is usually slightly higher than the left. T/F?
True
4
What is the maximum cardio-thoracic ratio that can be normal in an adult?
50%
5
For what group of adults would it potentially be normal to have a slightly larger cardio-thoracic ratio of 55%?
African American adults
6
In which bronchi is aspiration more likely to occur?
The right main bronchus as its more vertically oriented
7
Pleura are visible on an CXR. T/F?
False
8
Teenagers tend to have a small aortic knuckle. T/F?
True
9
If the aorta-pulmonary window bulges out, this could be a sign of...?
Lymphadenopathy
10
The left hilar point is general higher than the right hilarity point. T/F?
True
11
The lymph nodes in the hilum are usually visible. T/F?
False - these are not usually visible unless enlarged
12
The posterior ribs run horizontally. T/F?
True
13
The anterior ribs run at an angle. T/F?
False
14
Give examples of situations in which emergency CXRs may be performed.
Acute respiratory symptoms
Chest pain
Septic screen
Acute abdomen
Post central line/chest drain insertion
15
Give examples of situations in which elective CXRs may be performed.
Persistent / chronic respiratory symptoms
Pre-operative work up
Metastatic screen
TB contacts
16
What is the standard view used in a CXR?
PA
17
Where would an AP CXR be used?
On a ward or in the ICU
18
Why do you get a better sense of the size of the heart from a PA CXR view than an AP view?
Because in a PA view, the heart is closer to the film
19
How can the degree of inspiration on a CXR be determined?
By counting the ribs
20
How many anterior ribs should be visible on a CXR?
6 anterior ribs
21
How many posterior ribs should be visible on a CXR?
9-10 posterior ribs
22
How can rotation be assessed on a CXR?
Look for the 'teardrop' shape of the spinous processes and assess their distance from each of the clavicles
23
