advanced positioning midterm quiz 3
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| True or false: arthrograms are usually performed under aseptic conditions. | true
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| How much should the head and shoulders be elevated after a myelogram? | 30-45 degrees
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| Where does the central ray enter on an AP projection with right and left bending for lumbar spinal fusion? | L3
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| For lumbar spinal fusion radiographs, with the patient’s left leg crossed over the right, what position is the patient in? | right bending
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| How much contrast is usually injected for myelogram studies? | 9-12 ml
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| Spinal fusion radiographs are usually taken: | 6 months post-op
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| Trauma to the TMJ can cause the articular disk to be displaced how? | anteriorly
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| The puncture site for an arthrogram of the TMJ is: | ½” anterior to the tragus
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| What patient positions are used during myelogram studies? | lateral with flexion and prone
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| What projections are taken wit ha shoulder arthrogram? | tangential, axillary, 30 degree AP oblique
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| Name 3 common purposes of shoulder arthrography | rotator cuff tears, persistent pain/weakness, limited ROM
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| What position is commonly used for hyperflexion and hyperextension radiographs for scoliosis? | lateral recumbent
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| When the patient leans backwards and posteriorly extends the thighs, what position are they in? | hyperextension
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| When positioning for a scoliosis series, the BOF must be placed to include: | iliac crests
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| What is the name of the cyst that arises in the popliteal area of the knee? | Baker’s
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| Double contrast arthrography often includes what type of contrast mediums? | gaseous material, iodinated contrast
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| Name 3 purposes for a hip injection | congenital hip dislocation, detection of loose hip prosthetics, infection.
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| What position is the patient in for R and L bending radiographs for lumbar spinal fusion | AP supine
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| What is the puncture site for a shoulder arthrogram? | ½” inferior and lateral to the coracoid
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| Name 3 contraindications for a myelogram | blood in CSF, arachnoiditis, recent LP
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| Name 3 purposes for a knee arthrogram | locate tear of joint capsule, demonstrate soft tissue structures, locate ligament tear
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| What is the puncture site for a wrist arthrogram? | dorsal side through the articulation of the radius, scaphoid, and lunate.
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| Contrast media for a cervical myelography is injected where? | between the C1-C2 interspace
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| The puncture site for a hip arthrogram is: | ¾” distal to the inguinal crease and ¾” lateral to the palpable femoral pulse
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| In what space is the needle placed for myelography? | subarachnoid
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| What position will prevent contrast from advancing into the ventricles? | hyperextension
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| What positions are typically performed to diagnose scoliosis? | PA erect, PA prone, PA prone w/ lateral flexion
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| Name 3 common projections for a wrist arthrogram | PA, Lateral, obliques
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| Between what 2 disk spaces is contrast injected for lumbar myelography? | L2-L3 or L3-L4
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| Orthoroentgenography | radiography used to determine bone length
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| performed to evaluate the extent of bone cancer due to metastases | skeletal survey
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| standards to measure bone age | greulich and pyle
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| most common site for skeletal metastases | vertebral column
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| skeletal maturation is determined by: | the appearance, size and differentiation of various ossification centers.
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| Occurs after birth when the epiphysis forms at the end of e long bone | secondary ossification
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| The term given to the development and formation of bones | ossification
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| Tissue that lines the medullary cavity | endosteum
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| Beginning before birth, this forms the bulk of irregular and short bones | primary ossification
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