Final Exam S1 Flashcards
review for semester one final
What can the technologist do to reduce the magnification of the heart?
increase SID reduces OID
If there is a perforated colon what would the doctor order?
What series of x-ray:
acute abdomen series
(entire abdomen series)
(this is for perforation/obstruction because we want to see the air-fluid levels)
What is accumulation of fluid in abdomen called?
ascites
why is your central ray higher for an erect abdomen vs supine abdomen?
because we need to see diaphragm
Breathing instructions for abdomen x-rays:
Expose on expiration
moves the diaphragm up
what can you do to find pubic symphysis without palpating?
feel for the greater trochanter
if we are looking for intraperitoneal air what x-ray views would we do for that?
AP Upright abdomen or decubitis
parietal peritoneum
&
visceral peritoneum:
Parietal peritoneum- outer layer of the abdomen
Visceral peritoneum- inner layer of abdomen
Hypersthenic:
Wider/shorter physique
5% of population
(Broad and very deep front to back but shallow in vertical dimensions)
Asthenic:
(most likely going to be on exam)
(will use this on exam vs hyposthenic)
Narrow in width long vertical dimensions
10% of population
Sthenic:
Average build
50% of population
Hyposthenic:
Very thin physique
If we are looking for fluid in the left lung on a decubitus chest, what side do we position the patient?
Left side affected side
(Fluid will go to left side, air to the right due to buoyancy and gravity)
If the patient is in a left lateral decubitus where does the marker go?
Which side is the fluid and which side is the air?
- Marker goes side up (right side)
Fluid is going to be in the left lung
air will be in the right lung (gravity)
If we are looking for fluid in the right lung on a decubitus chest, what side do we position the patient?
Right decubitus
(Fluid in the right lung, air in the left)
Where is the jugular notch?
T2-T3
Between the two clavicles
where is the sternal angle?
In between the manubrium and body of the sternum
Where is the xiphoid process/tip located?
T9/T10
Where is the carina?
T5
Where is the hilum?
Near the heart and great vessels
“party at the hilum”
(T6-T7)
In an acute abdomen series, we do these positions:
(Bontrager’s, will be on exam and this is the answer)
Upright abdomen (2 inches above iliac)
supine KUB (at crest)
PA chest
What is pneumoperitoneum?
How would you visualize this on an x-ray (patient position)?
Free Air in the peritoneum (abdomen) cavity
Best visualized on a decubitus, erect abdomen or chest radiograph.
Appears as a air bubble in the abdomen cavity
(Joiel question)
Which of the following is evaluated to check for rotation on an AP projection on a supine abdomen?
A. Ascending colon is centered in the collimated field
B. Right and left ASIS is symmetrical and equal distance to the mid-sagittal plane.
C. The abdominal aorta & inferior vena cava are visible in the middle of the image.
D. ischial tuberosity and pubic symphysis are in the mid-sagittal plane
B
What is the rule for markers on abdomen decubitus?
Marker on the side up
(ex: left lateral decubitus, marker on the right side)
What is a pigg-o-stat and when do we use it?
Immobilization device for pediatric patients
On CXR (infants)
What would we do if the x-ray order was printed out incorrectly?
Verify name, DOB, assess patient, get with doctor or lead technologist. Don’t change the order yourself
what is a pulmonary embolism?
Sudden blockage of artery in lung
What is pleurisy?
Inflammation of pleura
“Rubbing when inspiration”
What is hemothorax?
Accumulation of blood in the pleura space
What is pneumothorax?
Accumulation of air in the pleura space
RAO is equal to:
LPO?
If we are doing a lateral chest x-ray and there is an increase in OID and the costophrenic angles are cut-off from the image receptor. How would we correct this?
A. Rotate the patient 5 degrees
B. Place both shoulders and hips along the image receptor
C. Raise the CR
D. Lower the CR
Lower the Central ray
LAO:
LPO:
RAO:
RPO:
Left anterior oblique
Left posterior oblique
Right anterior oblique
Right posterior oblique
RPO is equal to:
LAO?
For pneumothorax would we increase or decrease technique?
Decrease technique
(less tissue)
For hemothorax would we increase or decrease technique?
Increase technique
(more tissue)
What are the breathing instructions for a chest x-ray?
Breathe in
Exhale
Deep breath in
Hold!
(expose on inspiration)
What would we do to get the shoulders out of the lung field for a PA chest:
Rotate the shoulders forward
(this removes the scapula)
Lateral chest is the mid-coronal perpendicular or parallel to the IR?
Perpendicular
Lateral chest is the mid-sagittal perpendicular or parallel to the IR?
Parallel
PA chest is the mid-sagittal perpendicular or parallel to the IR?
Perpendicular
PA chest is the mid-coronal perpendicular or parallel to the IR?
Parallel
Joiel question
If the dome of the diaphragm moves down does it:
A. Increase the volume of thoracic cavity?
B. Decrease the volume of thoracic cavity
C. Does not change the volume of thoracic cavity
D. Not enough information to give an answer
A.
Increase the volume of thoracic cavity?
What is long scale vs short scale?
Long scale = low contrast (more greys)
abdomen & chest
Short scale = high contrast (black & white) upper extremity’s
What is the kvp range for chest?
110-125 kvp
What is the Kvp range for a mobile chest x-ray?
80-90 kvp
Central ray should always be:
in the center of the image receptor
(especially for chest and abdomen)
What is the CR for chest in AP?
3-5 inches below jugular notch
What is the central ray for PA chest?
7-8 inches below vertebral prominence (c7)
7 for females
8 inches for men
What is a lordotic chest?
What does it show?
A view that places the clavicles above the apices
Shows under the clavicles
Chief muscle for respiration:
Diaphragm
What is the vertebral prominence?
Topographic landmark for PA chest
The last cervical vertebral
C7
Where does the trachea bifurcates?
(22:04)
breaks of into the left and right bronchi at T4/T5 (carina)
If the sternal end of right clavicle is closer to the mid-line than the left clavicle, this means that:
Patient is rotated on chest x-ray
How long is the trachea?
From _____ to _____:
C6 to T4/T5
3/4 inches wide, 4 1/2 inches long
3 parts of the chest:
Bony thorax
respiratory system
mediastinum
MR.B
For females and males how does the CR for chest differ?
7 inches below vertebral prominence for female
8 inches for men
In a lordotic position how are the clavicles?
above the apices
How many ribs need to be seen on a chest x-ray?
10 ribs
For lordotic we are looking under the clavicles how do the ribs appear in this position?
ribs appear distorted
Ventral decubitus:
Laying on stomach
Horizontal CR beam
Right Decubitus:
Laying on right side
Horizontal beam
Marker on left side
Dorsal decubitus:
Laying on back
Horizontal beam
How many interphalangeal joints are in the digits:
2
distal interphalangeal (DIP)
proximal interphalangeal (PIP)
1st digit= 1 IP joint
Left Decubitus:
Laying on left side
Horizontal beam
Marker goes on right side
What side are we placing the fifth digit on for a lateral?
Why?
Medial side
to decrease the amount of OID
What side are we placing the second digit on for a lateral?
Why?
lateral side
for least amount of OID
Where is the Central ray for digits?
PIP joint
Proximal interphalangeal joint
to evaluate interphalangeal joints in the oblique and lateral positions the digit must:
A. Be radiographed in its natural flexion
B. radiographed in palmar flexion
C. must be supported parallel to the IR
D. Rest on the IR for immobilization
C.
must be supported parallel to the IR
(Joint must always be parallel to the IR)
CR for PA & oblique hand:
third MCP joint
CR for fan lateral:
second MCP joint
Where is the coronoid process?
Anterior surface of the proximal ulna?
What bone is on the coronoid process?
Ulna?
Where is the olecranon process?
Posterior side of ulna
What bone is the olecranon process located?
posterior Ulna?
What type of joint is the elbow?
Hinge?
What kind of joint are the DIP and PIP?
Hinge joints
What kind of joints are the MCP joints?
Ellipsoidal or condyloid
How are the epicondyles in AP elbow?
Parallel to IR
What kind of joints are the carpometacarpal joints?
1st sellar or saddle
2-5 plane or gliding
What kind of joints are the distal radioulnar and proximal radioulnar joints?
Pivot or trochoidal joints
How are epicondyles in internal elbow oblique?
Shoulder internal?
Elbow: 45 degrees oblique to IR
Shoulder: perpendicular to IR
How are the epicondyles in Lateral elbow?
Perpendicular to IR
2nd Coyle view
(will be tons on test)
Elbow flexed 80 degrees flexed
45 degree angle away from the head
For coronoid process
What does ICER stand for?
Internal elbow= coronoid
External elbow = Coronoid
how are the epicondyles in an external elbow?
45 degrees Obliqued to IR
How many views for a forearm?
2 views:
AP
Lateral
How do we demonstrate the coronoid process:
Internal rotation of elbow
1st Coyle view
(will be tons of questions on test)
90 degree arm flex
45 degrees toward the head
For the radial head
(Toward the head for the head)
If the patient can not perform the Internal and external rotation for elbow projections what would we substitute for?
Coyle view
2 views
(angle towards the head for the radial head)
(away from the head for coronoid process)
When is the olecranon process best shown free of superimposition?
Lateral elbow
AP forearm hand is:
supinated
Where is the radial tuberosity?
Where is radial notch?
tuberosity: On the proximal side radius
notch: On the proximal side of ulna