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Flashcards in SPM Deck (20):
1

Superior Oblique

abducts, intorts, and depresses while adducted

2

How do you test IO?

IOU. IO tested by looking UP

3

How do you test obliques?

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

4

CN IV damage

eyes move UP and head tilt toward side of lesion

5

ABI for rigid arteries?

greater than 1.4

6

ABI normal?

1-1.4

7

ABI blockage

0.9 or less

8

pulsus paradoxus

breathe in, pulse faster weaker
breathe out, pulse stronger, slower

9

hemiparesis

circumduction

10

cross-sectional study

prevalence

11

cohort

incidence

12

prevalence

cases of disease/population at time
expressed as a number per 1,000 or 100,000

13

incidence

new cases of disease/number of people at risk
PERSON YEARS

14

case fatality

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

15

Attributable Risk

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

16

Relative Risk

A/A+ B DIVIDED by C/C+D
RR= 1 exposure does not increase risk

17

Increase Cutoff?

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

18

Decrease cutoff?

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

19

What is relationship of PPV and disease prevalence?

As PPV increases, disease prevalence increases.

20

PPV increases...

as disease prevalence increases.