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SPI EXAM | 308 complete QUESTIONS AND ANSWERS 100% CORRECT |
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SPI EXAM | 308 complete QUESTIONS AND ANSWERS 100% CORRECT |
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SPI EXAM | 308 complete QUESTIONS ANDANSWERS 100% CORRECT | 2024-2025
Sonographer/ patient safety assume every patient what? - ANSWER Every
patient is infectious
Sterilization - ANSWER Destruction of all microorganisms by exposure to
extreme heat, chemical agents or radiation
Disinfection - ANSWER Reduce or eliminate infectious organisms; reduce
microbial load; chemical application
curie point - ANSWER depolarized PZT when heated to 360º C/ 680º F
OSHA - ANSWER Government writes the regulations
SDMS - ANSWER assists in acquisition of data. Provides the data for
study/regulations
Facility Responsibilities - ANSWER Develop policies and procedures for
ergonomics and sonographer health-standard operating procedures (SOP)
Ergonomics - ANSWER Studies the interaction between the sonographer,
patient and equipment to optimize the well being of the sonographer
,____% of sonographers experience pain from musculoskeletal injury related to
work - ANSWER 75%
___% monographers end their career as a result of injury - ANSWER 20%
ALARA - ANSWER As Low As Reasonably Achievable
If image is TOO DARK FIRST increase - ANSWER Receiver gain
If image is TOO BRIGHT FIRST decrease - ANSWER Output power
Bioeffects - ANSWER The effect of ultrasound on the tissue
Dosimetry - ANSWER identifying and measuring those characteristics of an US
field which are especially relevant to its potential for producing biological effects
Bioeffects intensity limit - ANSWER SPTA: Spatial Peak Temporal Average
Bioeffects intensity limit measurement - ANSWER W/cm2 or 1,000 mW/cm2
focused
100 mW/cm2 unfocused
In vivo - ANSWER in living tissue
,In vitro - ANSWER in glass; outside the living body
What had the greatest effect on patient exposure - ANSWER Exam duration
Highest output intensities are used with - ANSWER PULSED DOPPLER
Lowest output intensities are with - ANSWER GRAY SCALE imaging
What are great reflectors - ANSWER Tissues
What are lousy reflectors - ANSWER Red blood cells
Thermal Index - ANSWER A theoretical calculation related to the possible
temperature elevation, measured in degrees centigrade, that could or may be
produced by the sound beam
A thermal index of 2 means - ANSWER A temperature elevation of 2 degrees
centigrade MAY occur
Bioeffects on tissues - ANSWER Bone is an absorber.
Temperature elevation at a tissue-bone interface is
A. More likely
B. Less likely - ANSWER A. More likely
, Fetal tissues - ANSWER Temperature elevation in fetal soft tissue is considered
of potentially greater harm than in adults.
Mechanical Index - ANSWER Calculated number related to the likely bioeffects
from cavitation
The higher the Mechanical Index - ANSWER the more cavitation or 'popping of
the bubbles' occurs
Intensity is related to tissue heating - ANSWER SPTA
Epidemiology and Statistics shows diagnostic ultrasound has what kind of effects
on fetal? - ANSWER NO ADVERSE effects on fetal outcome or birth weight or
any other measurement
Best study is - ANSWER prospective and randomized
To do a study what must we keep in mind? - ANSWER The potential benefits
should outweigh the risks
AIUM suggests 2 things: - ANSWER Do not perform studies without reason
Do not prolong studies without reason
Cavitation - ANSWER bursting of bubbles
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