Formulas high yield

Question 1

Child Pugh score

Answer 1

for cirrhosis mortality/pre op
5-6 well compensated
7-9 significant function compromise, elective surgery prob ok
10-15 decompensated, high mortality, no elective surgery

Question 2

CURB score

Answer 2

for CAP severity
0-1 outpt therapy
2: hospitalize
3+: hospitalize and consider ICU admission

Question 3

FeNa

Answer 3

2% ATN

Question 4

FeUrea

Answer 4

50-60% ATN

Question 5

Gail breast cancer risk

Answer 5

consider prophylactic tamoxifen or anastrazole if risk is greater than 1.6% over the next 5 years

Question 6

Maddrey’s discriminant function

Answer 6

for alcoholic hepatitis

>=32 -> given steroids

Question 7

MELD score and transplant

Answer 7

refer to transplant center if >15

for TIPS, should be less than 15-18

Question 8

interpretation of stool osmolar gap

Answer 8

125 osmotic (celiac is osmotic)

Question 9

Wells criteria for DVT

Answer 9

3-8: high probability

1-2: moderate probability

Question 10

Wells criteria for PE

Answer 10

> 6: high

2-6: moderate