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12 Cards in this Set
- Front
- Back
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optic nerve is stimulated by flashing lights delivered in a head set worn by the pt
stimulus is transmitted to the visual cortex in the occipital lobe |
visual evoked potential (VEP)
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indications for VEP monitoring
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pituitary resection
trans-sphenoidal surgery |
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posterior fossa craniotomy
neck dissection ear surgery |
facial nerve monitoring
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facial nerves stimulated under direct visualization to assess intergrity
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facial nerve monitoring
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indications for arterial cannulation
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CABG
neurosurgery deliberate hypotension vasopressor use hemodynamic instability freq bld sampling critically ill pt anesthetic deems approp |
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potential arterial cannulation sites
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radial artery
ulnar artery dorsalis pedis axillary artery femoral artery |
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advantages of radial art bp
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most common site
easily palpated and accessed usually adequate collateral bld flow |
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disadvantages of radial art bp
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must have collateral bld flow (allans test)
complications d/t bld clot |
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advantages of ulnar art bp
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easy accessable
good collateral bld flow |
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disadvantages of ulnar art bp
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tech difficult
runs deeper and more tortuous |
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advantages of dorsalis pedis art bp
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2nd most common site
low complication rate easy to access |
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disadvantages of dorsalis pedis art bp
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sbp 20-30mmhg higher than radial artery
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