SPM

Question 1

Superior Oblique

Answer 1

abducts, intorts, and depresses while adducted

Question 2

How do you test IO?

Answer 2

IOU. IO tested by looking UP

Question 3

How do you test obliques?

Answer 3

Obliques go OPPOSITE. Left SO and IO tested with patient looking RIGHT.

Question 4

CN IV damage

Answer 4

eyes move UP and head tilt toward side of lesion

Question 5

ABI for rigid arteries?

Answer 5

greater than 1.4

Question 6

ABI normal?

Answer 6

1-1.4

Question 7

ABI blockage

Answer 7

0.9 or less

Question 8

pulsus paradoxus

Answer 8

breathe in, pulse faster weaker

breathe out, pulse stronger, slower

Question 9

hemiparesis

Answer 9

circumduction

Question 10

cross-sectional study

Answer 10

prevalence

Question 11

cohort

Answer 11

incidence

Question 12

prevalence

Answer 12

cases of disease/population at time

expressed as a number per 1,000 or 100,000

Question 13

incidence

Answer 13

new cases of disease/number of people at risk

PERSON YEARS

Question 14

case fatality

Answer 14

number of people who die from a particular disease/total people with that disease
gives sense of SEVERITY
denominator = prevalence

Question 15

Attributable Risk

Answer 15

risk difference
use cohort study– start with DISEASE FREE
A/A+B - C/C+D
AR = 0 exposure does not increase risk

Question 16

Relative Risk

Answer 16

A/A+ B DIVIDED by C/C+D

RR= 1 exposure does not increase risk

Question 17

Increase Cutoff?

Answer 17

makes test more specific - reduction in sensitivity, increase false negatives

Question 18

Decrease cutoff?

Answer 18

make test more sensitive - reduction in specificity, increase false positive

Question 19

What is relationship of PPV and disease prevalence?

Answer 19

As PPV increases, disease prevalence increases.

Question 20

PPV increases…

Answer 20

as disease prevalence increases.