Pediatrics Flashcards
child < 5 gets sick a week before (not always) patient appears well then has enlarged, erythematous, tender, cervical node possible abscess formation
Acute Unilateral Cervical Lymphadenitis
most commonly due to staph or strep
anaerobes associated with periodontal disease (poor dental hygiene)
use antibiotic therapy (clindamycin or amoxicillin-clavulanate)
do incision and drainage if abscess present
complications of bronchiolitis
apnea (especially infants age < 2 months)
respiratory failure
diagnostic criteria for acute bacterial rhinosinusitis
- persistent 10 or more days without improvement
- severe onset (fever > 39C or 102.2F + drainage) more than 3 days
- worsening symptoms following initial improvement
- need 1/3
- give amoxicillin + clavulanate
what do you give to a premature baby that is exclusively breast fed
IRON AND VITAMIN D
- preterm infants are at higher risk of iron deficiency so they should be on iron up till age 1
- all exclusively breast fed babies get vitamin D supplementation
*full term babies have enough iron for the first 4-6 months of life
management of a baby with hypospadias
defer circumcision
urologic evaluation for surgical repair
possible karyotype analysis, get pelvic ultrasound if severe
thyroglossal duct cyst vs pharyngeal cleft cyst
TDC –> anterior midline mass that moves with swallowing, embryologic anomaly made up of normal thyroid tissue
can present after URI
confirm presence of normal thyroid tissue then surgically resect the cyst , associated tract, and central portion of the hyoid bone
PCC –> lateral neck mass due to persistent cervical sinus that does not move with swallowing
how does cervical reactive lymphadenopathy present
enlarged neck mass after URI
lateral
involves multiple nodes
does not move with swallowing
kid has down syndrome and no meconium.. what do you think
hirschsprung
kid has CF and no meconium.. what do you think
meconium ileus
management of neonatal clavicular fracture
usually gets better within 7-10 days so do nothing but be gentle with them
you can also staple their shirt to the their sleeve so they dont move their arm for further damage
patient with very low fever or no fever with some hip pain and difficulty walking but can bear weight on it and was sick with a viral illness but has all normal labs
transient synovitis
full recovery within 1-4 weeks
conservative management with NSAIDs
how to treat patients and their families if someone has pertussis
its so contagious that you freaking treat them allllll with macrolides REGARDLESS OF VACCINATION STATUS
kid with purple “bruises” on his legs, arthritis/arthralgias, abdominal pain, and blood in urine
henoch-schonlein purpura
- IgA mediated vasculitis
- they are purpura not bruises
- abdominal pain, intussusception
- renal disease (hematuria- most common)
- symptoms often preceded by mild URI
supportive therapy (hydration and NSAIDs) hospitalization and systemic glucocorticoids in pts with severe symptoms
migratory arthralgias and no gram stain or culture found/grown
borrelia burgdorferi
decreased B cells due to absent T cells
severe combined immunodeficiency
common variable immunodeficiency
defect in B cell differentiation
decrease in plasma cells and immunoglobulins
most common cause of a child with back pain that has pain with extension and rotation but not flexion
spondylolisthesis
-fracture of pars interarticularis then usually pinches L5
risk factors for hypertrophic pyloric stenosis
first born boy
erythromycin
bottle feeding
*you will see an olive shaped abdominal mass
acute rheumatic fever
JONES criteria Joints O = shape of heart Nodules (subcutaneous) Erythemia marginatum Sydenham chorea
*give penicillin for group A strep
baby with pale stools and hepatomegaly
biliary atresia
*most common indication for peds liver transplant
transient tachypnea of newborn vs. respiratory distress syndrome
TTN –> tachypnea begins shortly after birth and resolves by day 2 due to inadequate alveolar fluid clearance at birth resulting in mild pulmonary edema, bilateral perihilar linear streaking … usually in term baby born via c-section
RDS –> premature infant with grunting, flaring, and retractions immediately after birth due to surfactant deficiency resulting in alveolar collapse and diffuse atelectasis, ground glass appearance on x-ray with granularities
*treat with continuous positive pressure ventilation
anaphylaxis
severe allergic reaction with HYPOTENSION or symptoms involving > 2 organ systems after exposure to allergen
*treat with IM epinephrine
what do patients have in turner syndrome (XO)
short, wide chest, webbed neck, narrow/high arched palate, coarctation of aorta (diff bp in upper vs lower extremities), bicuspid aortic valve, horseshoe kidney, and streak ovaries/amenorrhea/infertility
pts are at increased risk of osteoporotic fractures due to estrogen deficiency from ovarian dysgenesis
*more than 50% of these pts also have congenital lymphedema due to lymph network dysgenesis, presents as nonpitting carpal and pedal edema
what does organophosphate poisoning look like
acetacholinesterase inhibitors
Muscarinic: Diarrhea /diaphoresis Urination Miosis Bronchospasms, bronchorrhea, bradycardia Emesis Lacrimation Salivation
Nicotinic: muscle weakness, paralysis, fasciculations
vagina ends in blind pouch and kid has no uterus or ovaries but has bilateral abdominal masses
androgen insensitivity (XY)
clinical features of sturge-weber syndrome
port wine stain (trigeminal nerve distribution V1/2)
leptomeningeal capillary-venous malformation
seizures (possibly with hemiparesis)
intellectual disability
visual field defects
glaucoma
dx via MRI of brain with contrast
treat with laser therapy, antiepileptic drugs, intraocular pressure reduction
acute chest syndrome
pulmonary vasoconstriction or infection
pt presents with fever, chest pain, new infiltrate on chest radiograph
what to think about in pts with acute severe anemia in sickle cell patients
- aplastic crisis (decreased reticulocytes)
- transient arrest of erythropoiesis
- secondary to infection (parvo B19) - splenic sequestration crisis (increased reticulocytes and decreased platelets)
- splenic vaso-occlusive –> rapidly enlarging spleen
- occurs in children prior to autosplenectomy
patient with hemophilia A or B will have what joint findings
hemosiderin deposition and fibrosis
-they can develop hemophilic arthropathy from recurrent hemarthroses associated with hemosiderin deposition leading to synovitis and fibrosis within the joint
*treat by replacing factor and possibly adding desmopressin
baby with empty/hypoplastic/poorly rugated scrotum or hemiscrotum with or without inguinal fulness presenting with fussiness and in a lot of abdominal pain
baby has cryptorchidism (testicle is in abdomen and has torsion)
risk factors –> prematurity, small for gestational age, low birth weight, genetic disorders
treatment –> orchioplexy before age 1
complications –> inguinal hernia, testicular torsion, subfertility, testicular cancer
most common carrier of rhabdovirus in USA
bats (causes rabies)
-ascending flaccid paralysis plus all the typical symptoms
3 most common pathogens causing acute otitis media AND bacterial rhinosinusitis
- strep pneumo
- H. influenza (most common for rhino is nontypeable)
- moraxella catarrhalis
patients with chronic granulomatous disease have increased risk of what and why
staph aureus, serratia, and fungi
they get lots of recurring abscesses
NADPH oxidase abnormalities causing decreased superoxide production
atlantoaxial instability
- seen in > 10% pts with down syndrome
- excessive laxity in posterior transverse ligament increases laxity b/w C1 and C2
- symptoms can develop due to compression of spinal cord
- upper motor neuron findings, urinary/fecal incontinence, gait changes, and weakness
serum sickness-like reaction
immune complex formation due to abx reaction or acute hepatitis B
- symptoms: 1-2 weeks post exposure, fever, skin rash, polyarthralgia
- treatment: remove/avoid offending agent, supportive care, steroids or plasmaphersis if severe
lyme disease prevention.. when do you do this
single dose doxycycline IF (must have all 5)
- ixodes tick identified
- tick attached for > 36hrs hours or engorged
- prophylaxis started within 72hrs of tick removal
- local borrelia burgdorferi infection rate > 20% (ex: New England)
- No contraindications to doxycycline (ex: pregnancy)
what is the first thing to do when a kid swallows something incorrectly
clothing removal
pathology of coarctation of a aorta
thickening of tunica media of aortic arch near the ductus arteriosus
what is the most common inherited form of intellectual disability
x-linked CGG trinucleotide repeat –> Fragile X (hypermethylation at FMR1 gene)
beckwith-wiedemann syndrome
deregulation of imprinted gene expression in chromosome 11p15
- fetal macrosomia, rapid growth until late childhood
- omphalocele or umbilical hernia
- macroglossia
- hemihyperplasia
- complications: wilms tumor and hepatoblastoma
- surveillance: serum a-fetoprotein, abdominal/renal ultrasound
evaluation of primary amenorrhea (absence of menarche by 15 years old)
do pelvic ultrasound first to check for uterus
if present –> check serum FSH
if absent –> karyotype serum testosterone
alport syndrome
X-linked mutation of type 4 collagen
nephropathy –> hematuria, progressive renal insufficiency (proteinuria and hypertension), bilateral sensorineural hearing loss, anterior lenticonus/lens protrusion
dx –> molecular genetic testing, renal biopsy showing longitudinal splitting of GBM
baby comes in with cyanosis
pulse oximetry saturation ~85%
dark chocolate colored blood
methemoglobinemia
history –> exposure to oxidizing substances (dapsone, nitrates, local/topical anesthetic)
-saturation gap >5% difference between oxygen saturation on pulse oximetry & ABG
-normal PaO2
-give pt methylene blue
complications of drowning
all of these are as a result of hypoxemia from fluid aspiration (aspirated liquid washes out alveolar surfactant) causing…
- pulmonary edema
- respiratory insufficiency
- ARDS
anterolateral and superior displacement of the proximal femur along the along the physis (growth plate) in either super obese or super tall kid
slipped capital femoral epiphysis
immune thrombocytopenia
IgG antibodies form against platelets and try to kill them all… can be triggered by illness
- usually resolves in 3 months
- chronic is < 100,000 platelets for > 1 year
treat with IVIG, glucocorticoids or splenectomy if super bad but if the patient has no bleeding and looks fine then just observe
first line treatment for pts with sickle cell and many acute pain crises
hydroxyurea which may cause myelosuppression
HPV vaccine
under 15 –> two shots 6 months apart
15 and over –> 3 shots
criteria for systemic juvenile idiopathic arthritis
fever > 2 weeks arthritis > 6 weeks pink macular rash that worsens during fever leukocytosis, thrombocytosis elevated inflammatory markers anemia
patient clearly has meningitis… what are you worried about
if its menongococcemia (usually due to neisseria meningitidis) you are worried about waterhouse-friderichsen syndrome
WFS –> sudden vasomotor collapse and skin rash (large purpuric lesions on flank) due to adrenal hemorrhage
neonatal sepsis
temp instability (fever or hypothermia) poor feeding jaundice CNS signs (lethargy, apnea, irritability) abnormal WBC count (high or low) left shift (bandemia)
dx via blood, urine, CSF
parenteral antibiotic therapy
treatment for pts with kawasaki
IVIG and aspirin
digeorge syndrome
chromosome 22q11.2 deletion
defective development of pharyngeal pouches
CATCH 22
Cardiac defects conotruncal (trunctus arteriosus or transposition)
Abnormal facies
Thymic hypo/a-plasia (T cell deficiency)
Craniofacial deformities (cleft palate)
Hypocalcemia/hypoparathyroidism
22nd chromosome
possible complications of bacterial meningitis in children > 1 month
- intellectual disabilities
- hearing loss due to inflammatory changes to cochlea)
- cerebral palsy
- epilepsy
epiglottitis
haemophilus influenzae, type b
respiratory distress, tripoding, sniffing, inspiratory stridor, dysphagia, drooling, high fever
dx via thumb sign (enlarged epiglottis)
endotracheal intubation to secure airway and start abx (ceftriaxone and vancomycin)
it pt falls with something in their mouth what are you most worried about and how does it present
-can also happen with any sort of neck manipulation/strain or penetrating trauma
traumatic carotid injury
- gradual onset hemiplegia
- aphasia
- neck pain
- thunderclap headache
dx via CT or MR angiography
loss of position and vibratory sense in an adolescent aged person
friedreich ataxia (GAA repeated.. seen in genetic testing)
- atrophy of dorsal columns and tracts
- hypertrophic cardiomyopathy
- kyphoscoliosis
- high foot arches
pt comes in with precocious puberty… what do you do
look at bone age
-if advanced –> look at basal LH, if low then do GnRH stimulation test and if still low its peripheral precocious puberty (caused by CAH). if basal LH is high its central precocious puberty and you should do a brain MRI to rule out a tumor before starting GnRH agonist therapy
- pts will be shorter cause estrogen stimulates growth plate closure
- if normal –> look for isolated breast or isolated pubic hair development and its probs just that but nothing else too concerning
how to manage parapneumonic effusions
small effusion AND no respiratory distress or hypoxia = oral antibiotics and close monitoring
medium/large effusion OR respiratory distress OR hypoxia = ultrasound, IV antibiotics, and drainage
neonatal polycythemia
hematocrit >65%
risk factors: excessive transfusion, intrauterine hypoxia, maternal diabetes
complications: highly viscous blood can limit organ perfusion and cause respiratory distress, hypoglycemia, and poor feeding
baby has chronic inspiratory stridor thats worse when supine
laryngomalacia
- collapse of supraglottic tissues on inspiration
- peak at 4-8 months
- dx via laryngoscopy (will see omega shaped epiglottis)
- reassurance with with close follow up, but can do supraglottoplasty for severe symptoms
kid pulled or swung by arm… what do you think
radial head subluxation (nursemaids elbow)
- immature annular ligament slips over head of radius and arm is flexed and pronated
- treat with hyperpronation of arm OR supination of forearm and flexion of elbow
most common cause of congenital heart disease
VSD
do echocardiography to make sure its just this if you hear the murmur (holosystolic at left sternal border)
newborn boy presents with abdominal distension, poor urine output, and respiratory distress
posterior urethral valves
-respiratory distress is from oligohydramnios in utero and subsequent lack of lung development
-dx via voiding cystourethrogram
strabismus
ocular misalignment due to nasal deviation (estropia) or extropia
-may present with asymmetric red reflex/corneal light reflex or deviation during the cover test
- after 4 months this is not normal anymore*
- standard treatment is patching or blurring the normal eye to force the abnormal eye to correct itself
3 types of neonatal conjunctivitis
- chemical (<24hrs), tearing after silver nitrate prophylaxis, give eye lubricant
- gonococcal (2-5days), purulent discharge, give single dose IM 3rd gen cephalosporin
- chlamydial (5-14days), watery discharge, give PO macrolide (azithro used over erythro cause erythro can cause pyloric stenosis)
focal headache, fever, early morning vomiting, sinus infection… next step?
concerning for brain abscess… get a CT scan of the head
-will see a ring enhancing lesion
childhood onset fluency disorder
stuttering
duchenne muscular dystrophy
- age onset 2-3
- proximal muscle weakness (gower sign, calf pseudohypertrophy)
- dilated cardiomyopathy —> get echo for this at initial dx
- scoliosis
- increased CK
- muscle turns into fat and connective tissue due to missing dystrophin gene
- treat with glucocorticoids
- wheelchair dependent by adolescence
- death by 20-30 due to respiratory/cardiac problems
whats the first thing you think of if a pt presents with pneumocystis jirovecii
HIV
-decreased CD4+ T cells
how can you tell the difference b/w otitis media and externa
media has inflamed tympanic membrane (treat with amoxicillin)
externa has inflamed ear canal (treat with topical ciprofloxacin)
female pt who seems normal then has primary amenorrhea and you find out they have normal ovaries but no uterus
they probs also have abnormal development of the uterus, cervix, and upper third of the vagina
MULLERIAN AGENESIS
severe hepatosplenomegaly, anemia, thrombocytopenia, bony pain, fatigue, failure to thrive, delayed puberty
gaucher disease (AR)
- common in ashkenazi jews
- glucocerebrosidase deficiency
- treat with enzyme replacement
little kid with circular object with halo sign on x-ray… what do you do next?
probs a battery so you gotta endoscopically remove it cause batteries can cause corrosion, necrosis, and perforation
what type of fracture is concerning for abuse
metaphyseal corner/chip fracture (buckethandle fracture), common nutted (bunch of fragments) skull fracture
how to tell the difference b/w bruton agammaglobulinemia and common variable immunodeficiency
normal B cell count = CVID
low B cells = brutons
painless, patchy, nonscarring hair loss in kids
alopecia areata
gamma tetramers on hemoglobin analysis points to what diagnosis
alpha-thalassemia (4 gene loss)
- hydrops fetalis/hemoglobin barts
- seen clinically as high output cardiac failure, anascara, death in utero
classic x-ray findings in foreign body aspiration
hyperinflation distal to obstruction and mediastinal shift away from affected side
-do a rigid bronchoscopy to identify and remove the object
how to tell the difference b/w tay-sachs and niemann-pick disease
niemann-pick disease has hepatosplenomegaly and areflexia (neither seen in TS- hyperreflexia)
*both have cherry red spot on macula
NP- sphingomyelinase deficiency
TS- beta-hexoaminidase A deficiency
adrenarche
pubic hair development
possible complications and treatments of infantile hemangiomas
- ulcerations/scarring
- vision impairment if near eye
- life-threatening if near airway
*can give beta-blockers (propranolol) if you are worried about one of these complications cause it works by causing vasoconstriction and inhibiting growth factors
baby presents with breast hypertrophy, swollen labia, whitish vaginal discharge (physiologic leukorrhea), uterine withdrawal bleeding
physiologic responses to transplacental maternal estrogen exposure
-no work-up indicated, observation and routine care
fanconi anemia
- inherited DNA repair defect causing bone marrow failure, presents b/w 4-12 years
- presents: thrombocytopenia —> neutropenia —> anemia
- pancytopenia, hyper/hypopigmented macules, short stature, abnormal thumbs, genitourinary malformations
- positive chromosomal breakage testing
- hematopoietic stem cell transplant
11p13 deletion syndrome is also called what… and what does this stand for
WAGR syndrome Wilms tumor (most common renal malignancy in children) Aniridia (absent iris) Genitourinary abnormalities Retardation
what should prompt you to do further workup for a urethral injury
- blood at urethral meatus
- hematuria
- difficulty voiding
*do retrograde urethrography
neurofibromatosis type 1
CICLOPSS Cafe-au-lait spots Intellectual disabilities Cutaneous neurofibromas Lisch nodules (pigmented iris hamartomas) Optic gliomas Pheochromocytomas Seizures/focal neurological Signs (meningioma/bone lesion)
otitis media with effusion compared to acute otitis media
with effusion presents with no inflammation (fever and tympanic membrane mobility) and does not require anything for treatment
what happens if you see a positive target sign on ultrasound of bowels
intussusception
- reduce it with air (preferred) or water-soluble contrast enemas
- trouble pooping with currant jelly stools and streaks of blood
- sausage shaped abdominal mass
bitemporal hemianopsia, headaches, and endocrinopathies
craniopharyngioma (suprasellar mass)
joint pain and stiffness involving > 5 joints thats worse in the morning and better throughout the day
polyarticular juvenile arthritis
- usually adolescent/toddler female
- NSAIDs are first-line treatment
what are the respiratory and extrapulmonary symptoms in cystic fibrosis and what presents the same way?
- chronic sinopulmonary infections
- nasal polyps
- bronchiectasis
- digital clubbing
- pancreatic insufficiency (fat soluble vitamin deficiency)
- infertility due to absent vas deferens
- failure to thrive
*primary ciliary dyskinesia presents similarly, but the extrapulmonary symptoms are sinus inversus, infertility due to sperm immotility, and normal growth
parapneumonic effusion vs empyema
PNE –> sterile exudate in pleural space, pH > 7.2, glucose > 60, WBC < 50,000, negative gram stain/culture, treat with antibiotics
E –> bacterial invasion of pleural space, pH < 7.1, glucose < 60, WBC > 50,000, usually get false negative stain/culture, treat with antibiotics and drainage
patients with cystic fibrosis are more likely to get what bug at what age
before 20 —> staph aureus
after 20 —> pseudomonas aeruginosa
what is associated with Rett syndrome
seizures
possible complications of sickle cell trait
- hematuria/papillary necrosis, hyposthenuria (painless hematuria, UTI, renal medullary cancer)
- splenic infarction (especially at higher altitudes), venous thromboembolism, priaprism
- exertional rhabdomyolysis
newborn with scalp swelling that does not cross suture lines
what if it does cross suture lines
cephalohematoma (aka. subperiosteal hemorrhage)
caput succedaneum crosses suture lines (usually seen after vertex delivery)
difference b/w duodenal and jejunal atresia on x-ray
duodenal = double bubble sign jejunal = triple bubble sign
patient with coughing paroxysms, acute chest pain, shortness of breath, subcutaneous emphysema, crunching sound over the precordium (Hamman sign)
spontaneous pneumomediastinum
- evaluate with chest x-ray to confirm presence of mediastinal gas and rule out pneumothorax
- treat with rest, analgesics, and avoid valsalva maneuver
types of muscular dystrophy
- Duchenne (x-linked recessive)–> progressive muscle weakness with calf pseudohypertrophy
- Becker (x-linked recessive) –> milder weakness compared to duchenne
- Classic myotonic (AD)–> facial and hand weakness with dysphagia and testicular atrophy
what rash is associated with lyme disease
erythema migrans
if someone has lymphnodes here you should be a little worried
supraclavicular or just generalized everywhere