12/15/12 Flashcards
_______ is a common cause of ostemyelitis in diabetics after puncture wounds in the foot (as well as non-diabetics).
Pseudomonas
What are the 2 most common organisms responsible for osteomyelitis in sickle cell pts?
S. aureus and Salmonella
What is the most common congenital urethral obstruction?
posterior urethral valves
What is the classic presentation of posterior urethral valves?
a male infant with a distended bladder and abnormally low urine output
What is the diagnostic test of choice for post. urethral valves?
voiding cystourethrogram
What are the most likely pathogens responsible for septic arthritis in children under 3 mos.?
Staph, GBS, Gram (-)s
What are the 3 most likely organisms responsible for septic arthritis in children older than 3 mos?
Staph., GAS, S. pneumoniae
What is the empiric Tx for septic arthritis in children older than 3 mos?
nafcillin, clindamycin, cefazolin, or vancomycin
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.
What mediates the vasculitis of HSP?
IgA deposition in the small vessels
What is the classic tetrad of HSP?
rash, arthralgias, abd. pain, and renal disease
What is the characteristic EKG finding in tricuspid atresia?
left axis deviation
What are the characteristic EKG findings of ToF?
right atrial enlargment and right ventricular hypertrophy
Why would there be a holosystolic murmur in a neonate with tricuspid atresia?
VSD!
What is the common EKG finding in persistent truncus arteriosus?
BIventricular hypertrophy
