Intro Medical Lab Science

Quiz by Wayne Aguiar

Feel free to use or edit a copy

includes Teacher and Student dashboards

### Measure skillsfrom any curriculum

Tag the questions with any skills you have. Your dashboard will track each student's mastery of each skill.

• edit the questions
• save a copy for later
• start a class game
• view complete results in the Gradebook and Mastery Dashboards
• automatically assign follow-up activities based on students’ scores
• assign as homework
• share a link with colleagues
• print as a bubble sheet

### Our brand new solo games combine with your quiz, on the same screen

Correct quiz answers unlock more play!

31 questions
• Q1
true positives / (true positives + false negatives)
Sensitivity=
30s
• Q2
true negatives / (true negatives + false positives)
Positive predictive value
Negative predictive value
Sensitivity
Specificity =
30s
• Q3
Sensitivity
only true postives
confirmatory test
supplemental test
Can the test find the abnormality
30s
• Q4
Specificity
same as sensitivity
same as NPV
same as PPV
Specificity is the ability to exclude persons who do not have the disease.
30s
• Q5
have high sensitivity, to detect as many people as possible with the disease.
supplemental tests have this
the best screening test must
mainly confirmatory
both screening and confirmatory require this
30s
• Q6
with high specificity to ensure that a positive test detected with screening is a true positive.
supplemental and screening
screening
NPV tests only
a confirmatory test
30s
• Q7
True positives / True positives + False positives
specificity
sensitivity
Negative predictive value
Positive Predictive Value =
30s
• Q8
How likely is a positive test to indicate that the person has the disease?
The negative predictive value tells you how often a positive test represents a true positive.
The positive predictive value tells you how often a positive test represents a true positive.
specificity
sensitivity
30s
• Q9
True negatives / True negatives + False negatives
specificity
Negative Predictive Value =
positive predictive value
sensitivity
30s
• Q10
How likely is a negative test to indicate that the disease is not present in the person?
sensitivity
The negative predictive value tells you how often a negative test represents a true negative.
The positive predictive value tells you how often a negative test represents a true negative.
specificity
30s
• Q11
The laboratory sets "normal" ranges for laboratory tests based upon population studies. The farther out of range the test result is, the more likely that the result reflects real disease
Reference Intervals and their use in interpreting laboratory values
30s
• Q12
2 standard deviations of the mean, which includes 95% of all results. The standard deviation is just a measure of dispersion.
"Normal" is usually defined as those test values that fall within
30s
• Q13
This is sometimes called the "95% confidence limits".
1 std dev from the mean
4 std dev from the mean
3 std dev from the mean
2 std from the mean
30s
• Q14
There is a 1 in 20 chance that an "abnormal" test may really be normal. For every 100 tests ordered, the statistical probability is that
95 will fall outside of the range
1 will fall outside of a normal range
none will fall outside of the range
5 will fall outside of a normal range
30s
• Q15
standard deviation (SD) divided by the mean and multiplied by 100
The coefficient of variation (CV) is calculated as the .... CV indicates variability of the test results. This depends upon the test methodology, the instrument being used, and the range of results.
30s

Teachers give this quiz to your class