Med Study 4 Flashcards
(327 cards)
Why do button batteries need to be emergently removed from the esophagus?
because they can cause immediate liquefactive necrosis
If a child who swallows a coin is asymptomatic and it is now in the esophagus, what should you do?
You can observe for up to 24 hours
once it’s in the stomach, it should pass without a problem
but if it stays in the esophagus for > 24 hours, would need to go get it with a fiberoptic scope
If a child swallows a coin and now it’s in the stomach, what should you do?
that’s fine
let it pass through
not a problem
Infants who are fed goat’s milk are most likely to be deficient in which two vitamins?
folate and B6
the folate deficiency can lead to severe anemia
Blank deficiency is common in children who are fed regular goat’s milk
folate deficiency
can lead to severeee anemia
Type 1 glycogen storage disease, which presents in infants with rapid fasting hypoglycemia, is also called
von Gierke disease
Atropine and blank are used to treat organophosphate poisoning
Pralidoxime
put a lid on the poisoning
(praLIDoxime prevents something horrible from happening– which is when the organophosphate/acetylcholinesterase complex permanently binds….. so pradlidoxime stops that process)
What does the enzyme 5-alpha reductase do?
It converts testosterone to dihydrotestosterone
A neonate who is XY is born with ambiguous/almost female looking genitalia, and is found to have a NORMAL testosterone level but an ELEVATED testosterone:dihydrotestosterone ratio (meaning, this neonate has a LOW dihydrotestosterone level). What is the diagnosis?
5-alpha reductase deficiency
“Guevedoces” refers to what condition
5-alpha reductase deficiency
Guevedoces literally means “penis at 12”
refers to this AR condition where babies are born looking female, but then scrotum and penis develop at puberty
due to not being able to convert testosterone to dihydrotestosterone
Androgen insensitivity phenotype
totally depends on the degree of insensitivity
these pts are XY and can be born looking totally female if complete insensitivity, or more male if only partial insensitivity
What are testosterone levels like in androgen insensitivity syndrome?
normal or high
and the testosterone : dihydrotestosterone level is normal
Elevated testosterone : dihydrotestosterone think
alpha-5-reductase deficiency
Broad, stalk-like projection of bone on x-ray think
osteochondroma
= benign bone tumor
This benign bone tumor is usually painless, and often goes unrecognized until bathing or dressing. Happens in metaphyseal regions of bones (for ex, distal femur). Exam shows boney irregular mass that is non tender. X-ray shows stalk like projection arising from the surface of the bone.
= osteochondroma
(also called exostosis)
Should osteochondromas always be removed?
nope, only if they are causing symptoms
Pain, palpable bone mass, and “sunburst” appearance on x-ray =
osteosarcoma
Sunburst appearance of bone formation on x-ray + codman triangle =
osteosarcoma
Periosteal elevavation (aka onion skinning) on x-ray =
Ewing sarcoma
Ewwwwwww onion
Do osteosarcomas and Ewing sarcomas present similarly?
yup
Blank is a benign bone tumor that causes SEVERE nighttime pain
osteoid osteoma
Which benign bone tumor presents with pain and on x-ray will look like a well circumscribed lucency surrounded by sclerotic bone?
osteoid osteoma
Nail pitting, dactylitis, and anterior uveitis are associated with this autoimmune disease
juvenile psoriatic arthritis
What is juvenile psoriatic arthritis?
It’s a subtype of JIA.
In fact, it’s actually called “psoriatic juvenile idiopathic arthritis.”
You get small joint involvement, sausage digits (dactylitis), nail involvement, anterior uveitis, and of course psoriasis (but sometimes the skin findings don’t occur until years after the onset of arthritis).