Procedure - Thorax & Abdomen Flashcards
How many ribs should you seen on a fully inspiration CXR
10 ribs above diaphragm
Where should CR be directed for a PA CXR?
a. MCP at T7
b. MSP at T7
c. at level of scapular spine
d. at level of 12th rib
B
T7 corresponds to a horizontal plane through _________ of scapular
inferior angles
What is the primary indicator of full inspiration on the following radiograph?
a. visualization of posterior ribs through heart shadows
b. minimum of 10 posterior ribs above diaphragm
c. minimum of 10 anterior ribs above diaphragm
d. fine vascular markings are visible within lungs
B
CR entrance point for lateral CXR? be specific
midcoronal plane at level of T7
What should be visualized on a lateral CXR? (4)
apices
costophrenic angles
posterior ribs
sternum
Why 72” SID for CXR
compensate for increased OID bw heart and IR AND reduce the magnification of heart
for PA CXR, how should the IR be positioned in relation to patient;s shoulder?
a. 1.5-2” above shoulder
b. 2” below shoulder
c. directly at level of shoulders
A
Lordotic position mainly shows which anatomy of the lungs
apices
For Lordotic position, how should the IR positioned in relation to the patient;s shoulder
3” above shoulder
what is the CR for lordotic CXR
mid-sternum
for AP CXR on a stretcher, what is the SID and angulation
SID: 72”
angulation: caudal to match IR
For AP lordotic CXR, CR should be directed:
a. 1-2” below jugular notch
b. 2-3” below jugular notch
c. 3-4” below jugular notch
d. 4-5” below jugular notch
C
AP axial projection of the chest refers to which position
lordotic
for lordotic, patient is instructed to lean backward how many degrees
a. 5
b. 5-10
c. 10-15
d. 15-20
D
When performing an AP upright CXR when pt is on stretcher, technologist must ensure angle of tube matches angle of ___
a. IR
b. pt’ chest
A
Why is it important to make sure CR matches the angle of the IR
prevent grid cutoff and processing errors
what is SID for lordotic CXR
a. 72”
b. 40”
72”
When positioning pt for a lateral chest on a stretcher, which side of the pt should be placed against the IR?
a. RT side
b. LT side
c. Either side
d. depend on pathology
B
how many posterior ribs will be demonstrated above diaphragm in a correctly AP portable CXR
a. 8-9
b. 9-10
A
What is the preferred position for AP CXR when pt cannot stand
a. supine
b. semi erect
c. lateral decub
B
To ensure AP mobile CXR is free of rotation, what structures should appear symmetrical
a. ribs and clavicle
b. sternum and xiphoid process
c. lung apicec & costophrenic angles
A
SID for lateral Soft Tissue Neck
72”
CR for lateral soft tissue neck
laryngeal prominence
SID for AP Soft Tissue Neck
40”
Breathing instruction for AP soft tissue neck
a. slow deep inspiration
b. suspend after inspiration
A
CR for AP soft tissue neck
a. 1” superior to jugular notch
b. 0.5” superior to jugular notch
c. 2” inferior to jugular notch
A
what is the correct marker and correct marker placement used to indicate the left side of pt for an L lateral soft tissue?
a. left marker placed posteriorly
b. left marker placed anteriorly
B
what is the optimal vertical collimation for a lateral soft tissue neck
12”
Which of the following is the carina associated with?
a. superior wall of aortic arch
b. horizontal fissure of lung
c. hilum of lung
d. bifurcation of trachea
D
Trachea is split into ___
L & R bronchi
Which of the following statement is accurate in reference to lung’s vascular marking on PA CXR
a. vascular marking are only visible when there is pulmonary pathology
b. vascular marking appear thinner in superior portions of the lungs
c. caliber of vascular marking should be same from superior to inferior lung
d. vascular marking are only visible in hilar region near the heart
B
vascular markings are most prominent at the _____ regions
hilar
vascular markings appear thicker in ___ lung zones
a. inferior
b. superior
A
vascular markings appear thinner in ____ lung zones
a. inferior
b. superior
B
A pathological condition in which air or gas enters the pleural space:
a. pneumothorax
b. pleural effusion
c. emphysema
A
which conditions would demonstrate as the absence of diaphragm contour and blunting of costophrenic angles
a. emphysema
b. pleural effusion
c. pneumothorax
d. atelectasis
B
when evaluating PA CXR, radiologist note absence of lung markings and pleural line on pt’s right side. which conditions cause this appearance?
a. pneumonia
b. pneumothorax
c. pleurisy
d. croup
B
Why is it better to do PA chest in erect position
Detect air/fluid level
Diaphragm is lowered
Full lungs are shown
Why is it better to do PA over AP for chest
Lower OID for lungs & heart
What is Lithotomy position?
Legs are higher than head
Why 72” SID for chest x-ray
-Increased SID
-avoid magnification of heart
-capture bilateral lungs
-less divergence of x-ray beam = less distortion
3 body landmarks for CXR
- vertebral prominen
- jugular notch
- xiphoid tip
Vertebral prominen is at
C7
Jugular notch is at
T2
Xiphoid tip is at
T9/10
What is the tissue that make up the lungs
parenchyma
How do you know the exposure is good for PA chest
-no motion
-sharp outline of ribs
-visualization of vascular marking
The heart appears larger as a result of _____
shorter SID
increased OID
[CHEST CXR] What is the kVP for pediatric pt? Why?
70-80
they have low body mass
[CXR]
To indicate there are no rotation, the separation of posterior ribs should be ____
no more than 1/4 to 1/2”
Pneumothorax is detected on the right side of the lung, which position should the patient be placed in?
L lateral decub because the affected RIGHT lung should be up for us to see air.
Hemothorax is detected in the left side of the lung, which position should the patient be placed in?
L lateral decub because the right side needed to be away from the mediastinum
[CXR]
LPO corresponds to which position? Why?
RAO
Both see L lung best
[CXR] RPO corresponds to which position? Why?
LAO
Both see R lung best
Which positions can see the right lung best?
LAO
RPO
Which positions can see the left lung best?
RAO
LPO
For ___ oblique, lung will be closest to IR
posterior