Exam 3 Flashcards
a deviation from the expected norm, regardless of whether it results in any harm
error
an occurrence with harmful consequences to the person receiving care
adverse event
an occurrence in which the patient fortunately sustained no harm, or one in which timely steps were taken to prevent harm from occurring
near missed event
holes in defenses. can be physical, electronic, personal, procedural, administrative
latent failure
no single one event will result in an _____ _____, but the combination of many of those will
adverse event
myths about errors
- errors are intrinsically bad
- individuals who make errors are less experienced, more careless, or less well trained
- errors are a random occurrence
review reasons for swiss cheeses of latent and active contributors.
what do the slices of cheese represent in the swiss cheese model?
safeguards. the more slices of cheese we have, the more safeguards we have
______ ______ are the holes that are within the different slices of cheese
latent failures
common communication erros
- incomplete information
- inaccurate information
- questionable consent or disclosure
- inadequate documentation
wrong sided errors occur more frequently than
wrong patient or wrong procedure errors
the percentage or fraction of cases that are diagnosed correctly is the
accuracy
the higher the percentage of cases that are diagnosed correctly means that your ______ level is going to go up
accuracy
in the control booth the exposure switch should be located _____ away from the opening of the booth
30 inches (minimum)
the square footage of the floor needs to be at least ____ square feet for the control booth area
7.5
the leakage radiation from the x-ray tube or housing measured one meter away cannot exceed
100 millirads per hour at one meter
the variation of kVp accuracy test is ___
+/- 5%
the penny test: collimation or the field alignment or congruency and the acceptable range for the penny test is ___
+/- 2%
test that is used to measure the focal spot size to make sure that it’s accurate and make sure the focal spot sizes are the way they should be
pinhole camera test
take an x-ray through a pinhole and measure the dot through the pinhole for:
small and large focal spot
the timer accuracy allows for a variation ______ for exposure times that are longer than 10 ms
+/- 5%
the timer accuracy allows for a variation ______ for exposure times that are less than 10 ms
+/- 20%
the timer accuracy test for a 3 phase or high frequency generator uses an ____ _____
arc device (test)
test that determines if the central ray is perpendicular to the table or the wall unit
the beam alignment or perpendicularity test
