UWorld 2

Question 1

What causes the pain in biliary colic?

Answer 1

distention of the gallbladder

Question 2

What causes the pain in cholecystitis?

Answer 2

inflammation of the gallbladder

Question 3

How does pre-operative DDAVP administration help prevent excessive bleeding in pts w/ hemophilia A?

Answer 3

causes endothelial cells to release vWF, indirectly increasing Factor VIII

Question 4

Suprapubic pain and inability to void following major trauma. Blood at urethral meatus, high-riding prostate, scrotal hematoma, and pelvic fracture. Location of urethral injury?

Answer 4

posterior

Question 5

Saddle injury: perineal tenderness/hematoma, normal prostate, bleeding from urethra. Locatioin of urethral injury?

Answer 5

anterior

Question 6

Hip or knee pain w/ antalgic gait in an obese adolescent male.

Answer 6

slipped capital femoral epiphysis

Question 7

Chronic hip/knee pain w/ antalgic gait in 4-10 y.o. child (usu. male). Ltd abduction and internal rotation of hip.

Answer 7

Legg-Calve-Perthes disease (idiopathic osteonecrosis of the femoral head)

Question 8

What is the goal of treatment for Legg-Calve-Perthes disease?

Answer 8

maintain proper position of hip joint for f]proper healing

Question 9

What treatment modalities may be utilized for idiopathic osteonecrosis of the femoral head?

Answer 9

splints, surgery

Question 10

What nerve is primarily affected in klumpke’s palsy?

Answer 10

Ulnar

Question 11

Which nerve roots are damaged in Klumpke’s palsy?

Answer 11

C8/T1

Question 12

Which muscles would atrophy as a result of Klumpke’s palsy?

Answer 12

intrinsic mm. of hand, esp. interosseous and hypothenar

Question 13

What is teh next diagnostic step when a urethral tear is suspected clinically?

Answer 13

retrograde urethrogram

Question 14

What is a normal range of pulmonary capillary wedge pressure (PCWP)?

Answer 14

6-12 mmHg

Question 15

What would you suspect is the cause of shock in a trauma pt w/ a PCWP of less than 6?

Answer 15

hypovolemia

Question 16

What would you suspect is the cause of shock in a trauma pt w/ a PCWP greater than 12?

Answer 16

cardiogenic or tension pneumothorax

Question 17

Once a central venous catheter is placed, what is the first thing to do?

Answer 17

X-ray to ensure proper placement

Question 18

How are non-bleeding esophageal varices managed?

Answer 18

beta-blockers (e.g. propranolol)

Question 19

Critically ill pt has guarding on palpation of RUQ. Imaging shows gallbladder distention, thickening of gallbladder wall, and pericholecystic fluid. Dx?

Answer 19

acalculous cholecystitis