EBP

Question 1

What is the formula for Sensitivity?

Answer 1

TP/TP+FN

Question 2

What does Sensitivity have a low rate of? What does this mean?

Answer 2

Low rate of FN. This means that if a test is a highly sensitive test, we can be pretty damn sure the patient doesn’t have the condition, and can RULE IT OUT.

Question 3

What is the formula for Specificity?

Answer 3

TN/TN+FP

Question 4

What does Specificity have a low rate of? What does this mean?

Answer 4

Low rate of FP. This means that if a test is a highly specific test, we can be pretty damn sure the patient has the condition and can RULE IT IN.

Question 5

What is the number or range of clinical usefulness for a +LR?

Answer 5

≥5

Question 6

What is the number or range of clinical usefulness for a -LR?

Answer 6

≤.2

Question 7

What is the range of values and the meanings for +LR?

Answer 7

>10 = there is a large conclusive change
5-10 = there is a moderate conclusive change
2-5 = there is a small but sometimes important change
1-2 = there is a small and rarely important change

Question 8

What is the range of values and the meanings for -LR?

Question 9

Which level of evidence is best: Level 1, 2, 3, 4, or 5?

Answer 9

Level 1

Question 10

What is level 1 evidence?

Answer 10

Systematic Review or Meta-Analysis

Question 11

What is level 2 evidence?

Answer 11

Randomized Control Trial (RCT)

Question 12

What is level 3 evidence?

Answer 12

Non-Randomized trial

Question 13

What is level 4 evidence?

Answer 13

Case Series or Case Control Study. (Case Reports are sometimes included here).

Question 14

What is level 5 evidence?

Answer 14

Expert opinion or observation of clinical phenomena (MOST likely to be biased) It hasn’t been subjected to clinical testing. But sometimes has to be used because there might not be any evidence on the specific problem your patient has.

Question 15

What is the difference between a Systematic Review and a Meta-Analysis?

Answer 15

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