MedStudy Flashcards
(158 cards)
TSC Brain Changes
Cortical and periventricular calcifications
Sturge Weber Brain Changes
Unilateral serpiginous parenchymal calcifications with hemispheric atrophy
NF1 Brain Changes
Hyperintensity areas in basal ganglia and cerebellum
Vestibular schwannomas symptoms
NF2, 8th cranial nerve
tinnitus, unsteady gait, hearing loss, and/or facial weakness
NF2 can have bilateral cataracts (subcapsular lenticular opacities)
Ascorbic acid deficiency
vit C
fragmented hair with corkscrew appearance
gingival hemorrhage, FTT, irritability, bone pain
ground glass appearance to bones, sharply outlined metaphyseal ends
Langerhans cell histiocytosis derm symptoms
scaly papular seborrheic dermatitis of the scalp and diaper area
Vitamin D deficient rickets XR findings
decreased bone mineralization around epiphyses and bowing of LE
widening of wrist and knees
enlarged costochondral junctions “rachitic rosary”
Caffey Disease
COL1A1
irritability, fever, anorexia, soft tissue swelling associated with subperiosteal cortical thickening of underlying bone
Average onset: 10 weeks - 6 months
Labs: leukocytosis, elevated ESR and Alk phos
Mandible is affected in 95% of cases
Symptoms usually resolve by 24-30 months of age
Choanal Atresia DDX
CHARGE
Treacher Collins - conductive hearing loss, hypoplasia of lower eyelids with lower eyelashes absent/coloboma, cleft lip/palate, mandibular hypoplasia -> respiratory issues 2/2 obstruction
Serotonin Syndrome vs NMS
Myoclonus!!!!
SSRI/MAOI/MDMA aka ecstasy/linezolid
Tachycardia, high temp, HTN, confusion, hallucinations
Ecstasy = bruxism and hyponatremia
Tx - supportive, benzo and cyproheptadine
Do not confuse with NMS - will have hard to control BP and HR with muscle rigidity, Tx with benzo, dantrolene, bromocriptine, amantadine
Ingestion with Bezoar
Salicylates
ASA
OTC cold Med
Anti diarrheal
Oil of wintergreen
Bismuth
Herbal preparations
Acetaminophen Toxicity
Toxicity is mediated by NAPQI (metabolite). It binds to glutathione and if liver levels are depleted, NAPQI causes cellular damage.
NAC is tx -> restores glutathione stores; give within 8 hours of ingestion.
Obtain level at 4 hours to plot on normogram. Activated charcoal can be given at 1-2 hours.
Stages of Acetaminophen Tox
Stage I: malaise, lethargy, N/V
Stage II: 24-72 hours; RUQ pain with lab evidence
Stage III: 72-96 hours; peak lab markers including fulminant hepatic failure and prolongation of prothrombin time; most die at this stage
Stage IV: death or recovery
ASA toxicity
metabolic acidosis and respiratory alkalosis
Causes shift of K into cells -> kidneys conserve K and dump H+ -> urine is acidic
Fluid loss causes hyper NA2+
Toxicity activates the medullary respiratory center -> increased RR and HR, fever, etc.
DDX Cough, Coryza, Conjunctivitis
Measles (rubeola virus): will have classic rash, Koplik spots on buccal mucosa 2-3 days before the rash; splenomegaly and lymphadenopathy are common; college student. Maculopapular rash starts 2-4 days after fever onset and spreads in cephalocaudal direction.
Adenovirus: palatine petechiar, pharygneal/tonsillar enlargement/erythema, periauricular lymphadenopathy; serotypes 3 and 7 most severe. May have sterile hemorrhagic cystitis, PNA, encephalitis, myocarditis, diarrhea. Also can have a Reye like syndrome with bronchoPNA, hepatic failure, seizures, disseminated coagulopathy with serotype 7.
Viruses with Aplastic Crisis
Parvo B19
CMV
EBV
Hepatic viruses
HIV
Bacterial Meningitis for <7 DOL
GBS
E coli
Listeria
Tx amp + cephalosporin (cefotaxmine)
Hypertrophic Pyloric Stenosis
Caused by erythromycin or other macrolides if <6 weeks of age
Can be given to an infant with Chlamydial conjunctivitis or PNA
Gentamycin Toxicity
Oto and nephrotoxic
Congenital Syphilis
Infants with Treponema pallidum can present with bony lesions including osteochondritis at the metaphyses and periostosis. Decreased bands of bony mineralization and focal areas of destruction. It is painful so most refuse to move the affects areas.
Cutaneous lesions of palms and soles, which are contagious if ulcerated
HSM
Jaundice
Coombs neg hemolytic anemia
> 2 years old presentation
Rhinitis -> saddle nose appearance
Mulberry molars
Hutchinson teeth
Frontal bossing
CN 8 deafness
Anterior bowing of the shins
Screen with VDRL or RPR -> confirm with FTA-ABS or MHA-TP
Congenital Toxoplasmosis
Chorioretinitis, microcephaly, diffuse intracranial calcifications, seizures, hearing loss, growth restriction
Ineffective terminal complement cascade infections
C5-9 not working well
Neisseria meningitis and meningococcal infections
Tx: MCV4/Menactra if 9 months or older and they do not have asplenia or HIV
Menveo - give at 2/4/6/and 12 months
Boosters of either given q5 years
Bloody, watery diarrhea + Vulvovaginitis Infection
Shigella
Tx: ceftriaxone
Varicella Embryopathy
VZV infxn before 20 weeks GA
Severe limb malformations including shortening, atrophic, scarring in zig zag pattern
Ocular abnormalities - microphthalmia, cataracts, chorioretinitis, optic atrophy