Qbank copy Flashcards
Next step in pt exposed w/ chickenpox w/ no prior hx?
If immunocompetent, varicella vaccine (not VZV immunoglobulin)
If immunodef, VZV immunoglobulin w/in 10 days
Treatment for mumps?
Supportive, cold compresses to parotid or testes
Risk factors for constipation (3)
Initiation of solid food, toilet training, school entry
Urinary side effect of constipation
Impacted stool –> rectal distension –> compress bladder, urinary stasis, recurrent UTI
Classic triad of congenital toxoplasmosis?
- Chorioretinitis (form of posterior uveitis) 2. hydrocephalus 3. intracranial calcifications
Classic triad of congenital rubella?
- Deafness
- cataracts
- cardiac defects
FYI additional clinical sx of LAD
Poor wound healing, periodontitis (oft necrotizing, oral pain, bleeding & irritation of gums)
Reye’s syndrome classic features (3)
Rash, vomiting, liver damage
Other sx of osteogenesis imperfecta apart from fractures, blue sclera
Dentinogenesis imperfecta: blue-gray to yellow-brown discoloration of teeth (due to discolored dentin shining through translucent, weak enamel)
Contraindications to diphtheria/tetanus?
Anaphylaxis to vacine ingredients
Contra to pertussis?
- Anaphylaxis to vaccine ingredients
- Progressive unstable neuro disorders (uncontrolled epilepsy, infantile spasms)
- Encephalopathy w/in week of previous vaccine dose
- *All others are precautions but not contra!
Why continuous murmur in pda?
Aortic pressure > pulm artery pressure in both systole, diastole
What are the contraindications to breastfeeding?
- Active, untreated TB
- HIV
- Active illicit drug and EtOH abuse
- Skin: herpetic breast lesions, varicella, chemo/radiation
- Only infant condition that is a contra: galactosemia
When is surgery for cyrptorchidism indicated?
6 mo
What is the greatest risk of the above, even w/ orchiopexy?
Subfertility
What is most common cause of chronic stridor in infants?
Laryngomalacia: omega shaped epiglottis, collapse of supraglottic structures
Spontaneous resolution, but increased risk of GERD
FYI Ewing’s sarcoma sx
Really similar to osteomyelitis sx
Differentiate w/ xray: central lytic lesion, onion skinning, moth-eaten appearance
What are 3 associated syndromes of Wilms tumor (= nephroblastoma)
WAGR (Wilms, Aniridia, GU anomalies, mental Retardation)
Beckwith-Wiedemann syndrome
Denys-Drash syndrome
Site of Wilms tumor met?
Lungs
Top causes of bacteremia in sickle cell
- Strep pneumo 2. H. influenza B
Get vaccine and penicillin ppx until 5 yo
Top cause of pneumonia in sickle cell pt
Strep pneumo
Hereditary spherocytosis confirmed by
Eosin-5-maleimide binding (flow cytometry) and acidified glycerol lysis tests
Traditional NaCl fragility test has poor sensitivity
In hereditary spherocytosis, mean corpuscular hemoglobin concentration is low or high?
High, due to cellular dehydration and membrane loss.
Ddx for lytic bone lesion in child
Infectious: brodie abscess from osteomyelitis
Endocrine (hypercalcemia): hyperparathyroid osteitis fibrosa cystica
Neoplastic (hypercalcemia): Ewing sarcoma, Langerhans cell histiocytosis, mets
Idiopathic: benign bone cyst, aneurysmal bone cyst
Healthy infants lose up to 7% birth weight in how many days of life?
First 5 days
Birth weight regained by
10-14 d.o.
In the first week of life, what is healthy number of wet diapers?
diapers = age
Pink stains or brick dust in neonatal diapers represent
Uric acid cristals. Commonly seen in first week as mom’s milk is coming in
Clinical presentation of leukemia?
Fever, weight loss, pallor, other systemic sx
Osteoid osteoma
Limb pain (oft unilateral) that’s worse at night, repsonds to NSAIDS, common in 2nd decade. +/- limp and point tenderness
Next step in management of breath holding spells?
CBC and serum ferritin
Because Fe-def anemia is oft associated w/ breath-holding spells.IF prolonged or recurrent, consider ECG (presence of arrhythmias like prolonged QT) or if pt has murmur, poor growth, or dyspnea with feeds/activity, consider echo.
Ages of onset of Duchenne, Becker, and Myotonic dystrophy
3-5. 5-15. 12-30.
Lab findings on Duchenne muscular dystrophy?
Elevated serum creatin phosphokinase nad elevated aldolase
Nikolsky sign used for dx of
Scalded skin syndome (S. aureus)
1 yo boy with lead level 12 ug/dL (norm <5 ug/dL). Next step?
Fingerstick level can have false +. Measure venous lead level:
- Mild (5-44) –> no med, repeat test in DMSA (Meso-2,3-Dimercaptosuccinic acid)
- Severe (>= 70) –> Dimercaprol (British Anti-Lewisite) + EDTA
12 yo f w/ persistent left ear discharge for 3 weeks, even after 2 courses of abx, hearing loss on left. Intact TM w/ peripheral granulation and skin debris. Pt should be evaluated for
Acquired cholesteatoma (abn skin growth in middle ear behind eardrum) 2ndary to chronic middle ear disease –> retraction pocket in TM –> fill w/ granulation tissue and skin debris
Next step after exposure to tick-infested environment?
Bathe immediately
21 hydroxylase deficiency causes increases in
17-hydroxyprogesterone (NOT 17-hydroxyprogenolone)
Neonate presents w/ bilious vomiting. Best next step for diagnosis after NG tube and IV?
Abd x-ray
Baby w/ bilious vomiting doesn’t have pneumoperitoneum. Best next step?
Contrast study (upper GI vs. enema)
Best dx test for malrotation?
Upper GI (contrast)
CF pt w/ dilated loops of bowel w/ no rectal air and no free air
Most likely meconium ileus –> see microcolon on contrast enema
When is surgery indicated for an umbilical hernia?
- Persists to age 3-4 yo
- Exceeds 2 cm diameter
- Causes sx, strangulated, or enlarges progressively after 1 yo
What is a cyanotic <3 defect w/ left axis deviation and decr pulm markings on cxr?
Tricuspid atresia (hypoplasia of RV and pulm outflow tract)
Duodenal atresia associated w/
Chromosomal abnormalities. Due to failure of recanalization
Jejunal and ileal atresia associated w/
Vascular accident in utero –> necrosis and resorption of distal fetal intestine
EMG is used to eval
Neuromuscular system to differentiate btw peripheral nerve disorders and primary neuropathies
What is the ddx for T-wave inversion?
MI Myocarditis Old pericarditis Myocardial contusion Digoxin toxicity
Peritonsillar abscess vs. epiglottitis
Both have fever, sore throat, muffled voice, drooling but peritonsillar abscess have less acute presentation
Progressive pancytopenia, macrocytosis, caf̩-au-lait spots, microcephaly, microphthalmia, short stature, horseshoe kidneys, absent thumbs suggest
Fanconi’s anemia
Macrocytosis (NO hypersegmentation), short stature, webbed neck, cleft lip, shielded chest, and triphalangeal thumbs suggest
Diamond-Blackfan
Rx for the above?
Corticosteroids. If unresponsive, transfusion therapy
Best way to prevent congenital rubella?
Vaccination prior to conception
Down syndrom pt w/ UMN signs, behavioral changes has
Atlantoaxial instability. Most commonly due to excessive laxity in posterior transverse ligament –> incr mobility btw atlas (C1) and C2 –> compression of spinal cord
Hemolytic anema, thrombocytopenia, and acute renal failure most likely indicates
Hemolytic-uremic syndrome
90% due to diarrheal pathogen (E.Coli, Shigella), 10% S. pneumo (pts have pneumonia or meningitis instead of diarrhea)
Henoch Schonlein sx
Purpura on legs and buttocks, normal platelet count
Preadolescent child w/ back pain, neuro dysfn (ie. urinary incontinence), palpable “step-off” at lumbrosacral area most indicative of
Spondylolisthesis: a developmental disorder characterized by a forward slip of vertebrae (usu L5 over S1)
What is alexia?
Acquired disorder of reading subsequent to brain injury in person previously literate
When is renal biopsy indicated in kids?
Children >10 yo w/ nephrotic syndrome
Any child w/ nephritic syndrome or MCD unresponsive to predisone
FYI: leukocoria
Every case is considered retinoblastoma unless proven otherwise.
Other sx:
Cause of death for retinoblastoma?
Liver and brain mets
What is used for absence seizures (2)
Ethosuximide or valproate.
What is the most common cause of urinary tract obstruction in newborn boys?
Posterior urethral valves (obstructing membrane)
Copious purulent ocular drainage, eyelid swelling in 2- to 5-d.o.
Gonococcal conjuctivitis
Rx: topical erythromycin w/in 1 hr of birth
Milder conjunctivitis 5-14 days after birth
Chlamydia conjunctivitis
Rx for Erb-Duchenne palsy?
Gentle massage and PT to prevent contractures. 80% pts have recovery w/in 3 mo, surgery if no improvement by 6 mo
Characteristics for constitutional growth delay
- Delayed growth spurt, 2. Delayed puberty, 3. Delayed bone age
What is the most common cause of pneumonia in CF child?
NOT pseudomonas, but staph aureus.
Empiric rx: IV vanc (assume MRSA)
What is the empiric drug of choice for CAP?
High-dose oral amoxicillin for s. pneumo, doesn’t cover S. aur
Normal ECG on newborn shows
# Right axis deviation # R waves in V1-V3 due to larger RV since blood is shunted from lungs (PDA) and circulation relies on right heart
Ddx of neonatal jaundice?
# breastfeeding jaundice # breast milk jaundice # heme conditions # sepsis: see sx of poor feed, lethargy, vomiting, hypothermia
Sx of neonatal meningitis?
Not h/a or neck stiffness, but
- temp instability (fever >38 or hypothermia <36)
- poor feed
- irritable, lethargy
Triple bubble sign indicates
Jejunal atresia
Pt w/ fever, drooling, neck stiffness, muffled voice, also w/ inability to extend neck and widened prevertebral space
Retropharyngeal abscess
Pathogenesis of retropharyngeal abscess?
Pre-excisting URI, pharyngitis, tonsilits, AOM, sinusitis –> direct spread. Usu polymicrobial (S. pyogenes, S. aureus, anaerobes)
Language level of a 2 yo?
Speak in 2 word phrases, follow 2 step commands
Most common pathogen of septic arthritis in kids?
S. aureus (Empiric rx: IV vanc)
When does the ductus arteriosus close?
3 days old
What is the <18 form of antisocial personality disorder?
Conduct disorder
What is the most common cause of proteinuria in children/
Transient proteinuria (caused by fever, exercise, seizures, stress, volume depletion)
5 yo w/ 3 days of fever, sore throat. Multiple 1mm vesicles on anterior tonsillar pillars. Grayish ulcerated lesions in posterior oropharynx. Bilateral palpable cervical l.n.
Herpangina
6 mo male w/ low B and T lymphocytes, absent thymic shadow
SCID
What are risk factors for AOM?
# 6 - 36 mo # formula intake # exposure to cigarette smoke # allergic rhinitis or viral URI # craniofacial anomalies # chronic middle ear effusion
If AOM returns w/in a month of initial abx, us
Amoxicillin-clavulanic acid
3 associations of celiac disease
- Fe def anemia 2. Type 1 diabetes 3. Dermatitis herpetiformis (itchy vesicles on extensor surfaces of elbows/knees)
If celiac disease is suspected, what is a highly sensitive test?
IgA anti-tissue transglutaminase antibody. Confirm w/ upper GI endoscopy w/ SI biopsy
Disorder in which pts display severe, pervasive irritability and poor frustration tolerance –> frequent temper outburst
Disruptive mood dysregulation disorder
Disorder in which pts have patterns of angry/irritable mood and argumentative/defiant behavior towards authority.
Oppositional defiant disorder
Pt has 1. Rapid onset of edma (of face, limbs, genitalia, laryges, intestines causing colicky abd pain), 2. no evidence of urticaria
Hereditary angioedema. Episodes usu follow infx, dental work, or trauma. Dysfn C1 inhibitor –> elevated C2b, bradykinin
1 mo w/ harsh III/VI holosystolic murmur of left lower sternal border most likely
VSD (Next step: echo to determine size of defect)
6 yo boy w/ insidious-onset hip or knee pain, antalgic gait (sx >1 mo)
Legg-Calve-Perthes disease: osteonecrosis of femoral head typically in boys 4-10 yo. Idiopathic, but underlying thrombophilia may be predisposing
13 yo boy w/ insidious-onset hip pain and limp
Slipped capital femoral epiphysis. Assoc w/ obesity
Limping when a toddler is learning to walk suggests
Developmental dysplasia of hip
Rate of normal saline IV for dehydration?
20 mL/kg
What is the gold standard for confirmation of Duchenne MD?
Genetic studies
What drug is used for congenital long QT, and why?
Beta blockers to blunt exertional heart rate (pts should avoid vigorous exercise) and shorten QT interval