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Adv. Mods Unit I
special procedures
Question | Answer |
---|---|
What special procedure involves contrast study of the synovial joints and related soft tissue structures? | arthrography |
What must be done before a special procedure can take place? | pt. must sign informed consent form |
Why are knee arthrograms done? | torn joint capsule, menisci, or ligaments; Baker's cyst |
What is an example of local anesthetics? | Lidocaine |
When contrast is administered for a knee arthrogram how much do you rotate the knee between each exposure? | 20 degrees |
What are the two most common types of arthrograms done? | Knee and shoulder |
When double contrast procedures are done; how much negative and how much positive contrast is put into the joint space? | 3-4ml positive; 10-12 mL negative |
Where does the patient normally go after the injection of contrast in an arthrogram if overheads are not taken? | CT or MRI |
What modality is used for needle placement and contrast injection? | Fluoro |
What does it mean by "patency" of uterine tube? | Opening |
What is the #1 reason a female gets a hysterosalpinogram? | Infertility assessment |
What does tubal ligation mean? | Tubes are closed |
What does the radiologist look for once the contrast is administered into the uterine cavity? | Spilling of the contrast into the peritoneal cavity which indicates the tubes being open of patent |
What is the radiographic study of the spinal cord and it's nerve root branches with contrast? | Myelogram |
Where is contrast administered in a myelogram? | L3-L4-lumbar C1-C2-cervical |
Where does the spinal cord end? | L1 |
What is the #1 indication for a myelogram being performed? | HNP |
What does HNP stand for? | Herniated nucleus polposus |
Why would a pt. who recently got a LP not be able to get a myelogram done? | Because there would be a risk of leaking CSF |
Why are pillows placed under the patients belly/chest area during a myelogram? | To open up the spaces in the spine |
Why must the patient keep their neck hyperextended once the contrast is administered? | To keep the contrast in the c-spine and not the subarachnoid space |
T/F: sialography is the study of the salivary glands and associated ducts when they are infected. | False: you don't want to do the exam when they are infected or inflamed |
What are the 3 major glands in the mouth? | Parotid, submaxillary (submandibular), sublingual |
What gland are the ducts of Rivinus located on? | Sublingual |
What is used to stimulate saliva? | Lime or a lemon |
T/F: for accurate measurement in orthoroentgenography the tech must use separate cassettes/IRs for each joint that needs to be included. | T |
Why can't a tech use one cassette on an orthoroentgenography study? | Beam divergence which results in elongation |
Which kind of ruler is used in orthoroentgenography? | Bell-Thompson ruler |