uworld5

Question 1

urine positive for prussian blue. think..

Answer 1

hemosiderin present- found in urine during hemolytic episodes

Question 2

3 tests to initially test for cushings

Answer 2

24 hr cortisol test

late night salivary cortisol test

low dose dex suppression test

Question 3

known adverse effect of trastuzumab and baseline test you should do before taking it

Answer 3

cardiotoxicity

echo

Question 4

fluid choices for severe vs mild hypovolemic hypernatremia

Answer 4

severe: Normal Saline
mild: 5% dextrose .45% saline

Question 5

aspiration appearance of gout vs pseudogout

Answer 5

gout: needle shaped, yellow parallel, blue perpendicular
pseudo: rhomboid shaped, yellow perp, blue parallel

Question 6

what is Aa gradient and PaCO2 in PE?

Answer 6

Aa gradient increased- VQ mismatch

paCO2 is low from hyperventilation

Question 7

hard, nontender lymph nodes in submanidbular region are concerning for

Answer 7

head and neck cancer- primarily squamous cell carc

Question 8

most common causes of DIC

Answer 8

trauma
infection
malignancy

Question 9

labs in bulimia

Answer 9

hypokalemic
alkalosis

also can lead to hypochloremia

Question 10

initial treatment for someone with SVT who is hemodynamically unstable?

Answer 10

synchronized cardioversion

Question 11

which antibodies present in sjogren

Answer 11

anti-Ro (SSA) and anti-La (SSB)

Question 12

insulin can be given subq or IV in DKA vs hyperosmolar hyperglycemic state?

Answer 12

DKA- either

HHS- IV

Question 13

vibrio vulnificus-

Answer 13

marine bacterium

causes:
- food bourne illness (oysters)
- wound inf.- nec fasc

common in pts with liver dz, hemochromatosis

Question 14

can bedbugs bit hands/soles?

Answer 14

unlikely due to thickness of skin

Question 15

if someone has early lyme dz (erythema migrans), do you test for serology or treat?

Answer 15

treat, cuz its too early for serology

Question 16

diagnostic test for hx of initiating swallowing with cough, choking, nasal regurg

Answer 16

videofluroscopic modified barium swallow

Question 17

acute management of acute decompensated HF

Answer 17

supp O2, IV loop diuretics (avoid beta blockers in acute setting)

Question 18

diagnosis for ADPKD

Answer 18

renal US

Question 19

IV adenosine can help with what

Answer 19

diagnosis and management of narrow QRS tachycardia (SVT)

slows rate, increases AV delay, cause transient block in AV conduction

identifies hidden p waves to clarify diagnosis of atrial flutter or atrial tachycardia

Question 20

SVT definition

Answer 20

any tachycardia above His-bundle system

types: afib, atrial flutter, atrial tachy, sinus tachy, AVNRT< AVRT

Question 21

SVT on EKG

Answer 21

narrow QRS tachycardia

no regular p waves (buried within QRS), but retrograde p waves can occur (spikes on QRS complexes)

Question 22

can a patient with negative VLDR test have syphilis?

Answer 22

yes, high false neg rate

Question 23

ages of cherry vs strawberry angiomas?

Answer 23

cherry-elderly

strawberry-kids

Question 24

test to decipher between asthma and COPD

Answer 24

spirometry before and after bronchodilator