12/15/12 Flashcards Preview

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Flashcards in 12/15/12 Deck (20):
1

_______ is a common cause of ostemyelitis in diabetics after puncture wounds in the foot (as well as non-diabetics).

Pseudomonas

2

What are the 2 most common organisms responsible for osteomyelitis in sickle cell pts?

S. aureus and Salmonella

3

What is the most common congenital urethral obstruction?

posterior urethral valves

4

What is the classic presentation of posterior urethral valves?

a male infant with a distended bladder and abnormally low urine output

5

What is the diagnostic test of choice for post. urethral valves?

voiding cystourethrogram

6

What are the most likely pathogens responsible for septic arthritis in children under 3 mos.?

Staph, GBS, Gram (-)s

7

What are the 3 most likely organisms responsible for septic arthritis in children older than 3 mos?

Staph., GAS, S. pneumoniae

8

What is the empiric Tx for septic arthritis in children older than 3 mos?

nafcillin, clindamycin, cefazolin, or vancomycin

9

One complication of Marfan's syndrome is dural ectasia. What is this, and how does it present?

Widening of the dural sac, usu. at lumbosacral lvl, that erodes away the spinal canal. Presents with neuro signs, such as pain, wkness, and loss of bowel or bladder function.

10

What mediates the vasculitis of HSP?

IgA deposition in the small vessels

11

What is the classic tetrad of HSP?

rash, arthralgias, abd. pain, and renal disease

12

What is the characteristic EKG finding in tricuspid atresia?

left axis deviation

13

What are the characteristic EKG findings of ToF?

right atrial enlargment and right ventricular hypertrophy

14

Why would there be a holosystolic murmur in a neonate with tricuspid atresia?

VSD!

15

What is the common EKG finding in persistent truncus arteriosus?

BIventricular hypertrophy

16

What is the anatomical defect in Ebstein's anomaly?

downwardly displaced tricuspid valve

17

What is the likely cause of fever, painful cervical lymphadenopathy, and exudative pharyngitis in a normal child (no rash or rhinorrhea)?

streptococcal pharyngitis

18

What is the causal organism of streptococcal pharyngitis?

GAS

19

What is the recommended ABX for streptococcal pharyngitis?

penicillin V

20

What is the most common cause of communicating hydrocephalus?

subarachnoid hemorrhage