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CC Jan 2017 Head-Up Tilt Table (HUTT) Testing

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echoecho's version from 2017-05-08 05:21

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Question Answer
Syncope results from a transient loss of______ perfusion causing brief _____?1) cerebral 2) loss of consciousness
What is the type of syncope most often affecting young adults?neurally mediated syncope
List the 2 mechanisms that causes neurally-mediated syncope (lightheadedness or syncope)?1) abnormal lower extremity vasodilation with standing (vasodepressor) 2) paradoxical reduction in HR with standing (cardioinhibitory)
What does a head-up tilt table testing differentiate between?helps differentiates cardioinhibitory from vasodepressor syncope.
What type of environment and type of patient is a HUTT performed on?1) controlled environment (normal temperature and humidity) 2) hemodynamically stable and well-hydrated patient
How is the HUTT performed?1) place patient in supine position on a tilt table for 10 minutes with continuous BP and cardiac monitoring 2) Phase 1 involves elevating the head up to 70 degrees with continuous BP and cardiac monitoring. If syncope results, the test is halted. 3) Otherwise, the patient is given either SL NTG or IV isoproterenol and observed for an additional 20 minutes (these meds induce peripheral vasodilation, so the patient can be assessed for abnormal neurally-mediated response.
Is Dobutamine used in HUTT testingno
*** List the patient requirements before a HUTT test can be done?1) can be used in adolescents and adults (as long pt is medically stable) 2) can lie supine 3) can be tilted upright on a tilt table 4) able to follow instructions and report presyncopal syndrome
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