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At what level is the spinal puncture made in myelography?
L2-L3 or L3-L4
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A myelographic exam is a radiologic procedure of
CNS structures within the vertebral canal
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What kind of contrast is used in myelography?
non-ionic, water soluble
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In myelography, contrast is injected into the:
subarachnoid space
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Term defining an injection into the sub-arachnoid space.
Intrathecal Injection
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After a myelogram, the patient can return home within:
4-8 hours of monitoring
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A myelogram is performed instead of MRI when the patient has a ____ such as ____ or _____.
Contraindication to MRI, pacemaker or metalic spinal fusion
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Reasons for a myelogram:
Spinal compression, herniated disc, tumors, bone fragments, or spinal cord swelling due to trauma
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The scout radiograph taken before a myelogram is a:
x-table lateral
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An injection for a myelogram is _____ while for CT it is a _____,
intrathecal injection, intravenous injection
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The patient position for myelography:
Prone
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Protocol for Contrast after myelogram:
Usually non-contrast, unless after myelogram. No additional contrast administered.
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Patient prep technique for myelogram is:
aseptic
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Why should a patient be well hydrated before a myelogram?
Because the contrast medium is water soluble
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During a myelogram, the patients head should be:
fully extended
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Why should the patient have their head fully extended during a myelogram?
To prevent contrast from entering cerebral ventricles (compresses cisterna magna)
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Prior to performing the myelogram, what does the doctor do?
Obtains a sample of CSF for analysis
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How much contrast is injected during a myelogram?
9-12 ml
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Before being transported to the recovery room, what should be examined on the patient?
The puncture site
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During a myelogram, the patients head and shoulders should be elevated:
30-45 degrees
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Narrowing of spinal cord, spinal canal, nerve roots, or intervertebral foramina:
Spinal Stenosis
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Narrowing of bony openings through which tissues pass:
Encroachment
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Nerves irritated in lower back from degenerative disc disease; pain shoots down leg:
Sciatica
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Nerve irritaion caused by damage to the outer ring of the disc due to trauma:
Radiculopathy
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What term is often used on requisitions to refer to sciatica?
Radiculopathy
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Fragment of the nucleus is pushed out of the outer disc margin:
Herniated Disc
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Inner and outer layers of intervertebral discs:
Annulus fibrosus and nucleus pulposus
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Diagnostic and sometimes therapeutic procedure performed to collect CSF for analysis:
Lumbar Puncture
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The Data Acquisition System consists of:
Gantry, table and generator
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Two types of Lidocaine:
1% and 2%; verify twice with Dr.
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CARE Bill accronym:
Consistency, Accuracy, Responsibility, and Excellence
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Objective of CARE bill:
establish minimum educational and credentialing standards for personnel
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