BLD 313 EXAM QUESTIONS AND ANSWERS WITH COMPLETE
SOLUTIONS VERIFIED
quality assurance
manage every aspect of the entire process for all the tests, including pre-analytical,
analytical, and post-analytical phases
quality control
makes sure there is no problem in each test
case-control study
1. choose two groups (with or without incident)
2. a researcher goes back into their history to check if they have been exposed to the
factor or not
attributable risk
measures the excess risk that is attributed to the exposure
relative risk
a likelihood to have the incident occur in an exposed group compared to a non-exposed
group
odd ratio
a measurement of the association between an exposure and an outcome
cohort study
1. choose a population and separate them into two groups (with and without exposure)
2. a researcher follows their life from now on to check if they will have an incident or not
, positive association/causal
relative risk > 1
negative association/protective
relative risk < 1
no association
relative risk = 1
accuracy
closeness to a true value
precision
closeness of data to each other
random error
equivalent to imprecision
systemic error
observed error (2SD), distance between true value and average value, bias, shifted to
the same amount in every result
delta check
compare a patient's test results with previous test results
analytical sensisitivty
lowest concentration we can measure before it produces no discernible signal
analytical range
range of concentration bound by the upper limit of linearity and lower limit of detection
precision check
check +/- 2SD from repeated measurements of a single specimen
SOLUTIONS VERIFIED
quality assurance
manage every aspect of the entire process for all the tests, including pre-analytical,
analytical, and post-analytical phases
quality control
makes sure there is no problem in each test
case-control study
1. choose two groups (with or without incident)
2. a researcher goes back into their history to check if they have been exposed to the
factor or not
attributable risk
measures the excess risk that is attributed to the exposure
relative risk
a likelihood to have the incident occur in an exposed group compared to a non-exposed
group
odd ratio
a measurement of the association between an exposure and an outcome
cohort study
1. choose a population and separate them into two groups (with and without exposure)
2. a researcher follows their life from now on to check if they will have an incident or not
, positive association/causal
relative risk > 1
negative association/protective
relative risk < 1
no association
relative risk = 1
accuracy
closeness to a true value
precision
closeness of data to each other
random error
equivalent to imprecision
systemic error
observed error (2SD), distance between true value and average value, bias, shifted to
the same amount in every result
delta check
compare a patient's test results with previous test results
analytical sensisitivty
lowest concentration we can measure before it produces no discernible signal
analytical range
range of concentration bound by the upper limit of linearity and lower limit of detection
precision check
check +/- 2SD from repeated measurements of a single specimen
