Ch. 22 Add. Diagnostic procedures Flashcards
True or False: To properly measure the length of a long bone, the entire lower limb should be included on a single projection.
false
Epiphysiodeses is an operation to lengthen the bone by widening the epihphyseal plate
False; it is a premature fusion to shorten the bone
What type of ruler is used for a long bone measurement?
Bell Thompson
What are the 2 types of joints commonly examined with an arthrogram?
Knee and Shoulder
An indication of a possible Baker’s cyst would suggest the need for an arthrogram procedure of the
knee
How much iodinated water soluble contrast media is used in a knee arthrogram
5ml
How much negative contrast media is used in a knee arthrogram
80-100 ml
How many exposures are made and how much is the leg rotated b/w each exposure for horizontal beam knee arthrograms?
6, 30 degrees
What type of needle is used to inject contrast for a shoulder arthrogram?
2 1/2 or 3 1/2 spinal needle
What are the overhead projections done in a shoulder arthrogram?
AP internal and external
Postinjection shoulder arthrogram projections?
transaxillary, grashey method, intertubercle, ap internal and external
What are the 4 common lesions or condition diagnoised through a myelogram/
HNP, bone fragments, arachnoiditis, increased intracranial pressure
The most common clinical indication for a myelogram is
A/ benign tumors
B. spinal cysts
C. HNP
C. HNP
Where is the contrast medium injected during a myelogram?
subrachnoid
Which position will move the contrast media colum from the lumbar to the cervical region during a myelogram?
trendelenburg
What is the most common spinal puncture site for a lumbar myelogram?
A. L3-L4
B. L1-2
C. L4-5
A. L3-4
The absorption of the water soluble contrast media into the vascular system of the body begins ____ mins after injection and is totally undetectable radiographically after ___ hours
30, 24
Which position is performed during a cervical myelogram to demonstrate the C7-T1 region?
Swimmers lateral
Another term for tomography is___
body section radiography
True or False; Maximum blurring of anatomy will be achieved when it is perpendicular to the tube travel.
true
True or False; The primary factor affecting the sectional thickness, as controlled by the operator, is exposure angle.
true
True or False; Increased blurring occurs when the object is farther from the IR
True
True or False; More blurring occurs with a shorter exposure angle
False
Which one of the following exposures times would be suitable for the breathing technique for a thoracic spine lateral? A. 2-3 seconds B. 1 second C. 1/2 second D. 10 miliseconds
a