Pediatrics Flashcards
6 months (3)
Sits unassisted
Babbles
Stranger anxiety
9-10 months (3)
Crawls
Pulls to stand
Pincer grasp
12 months (7)
Walks along
(first steps independently)
Throws object
Two finger pincher
1-3 words
Separation anxiety
Weight triples
Height increases by 50%
2 years old (4)
Walks up and down steps
Jumps
Builds tower 6 cubes
2 word phrases
3 years old (4)
Rides tricycle
Climbs stairs alternating feet
Copies circle
3 word sentences
4 years (2)
Hops
Copies cross
Bedwetting normal
Until 5 years old
Failure to thrive
Falls of weight curve first
Then height
Then head
Upslant eyes
Epicanthal folds
Single palmar crease
- Name
- Associated findings (7)
Down Syndrome
Trisomy 21
Duodenal atresia Hirschsprung disease ASD VSD PDA ALL Hypothyroidism
Rocker bottom feet
Low set ears
Micrognathia
Overlapping fingers
- Name
- Associated findings (2)
Edwards syndrome
Trisomy 18
VSD
Horseshoe kidneys
Death within 1 year
Microphthalmia Microcephaly Cleft lip Holoprosencephaly Polydactyly Omphalocele
Patau syndrome
Trisomy 13
Death within 1 year
Delayed puberty in males
No testicular enlargement in boys by 14 years old
Breast development
No pubic hair
Amenorrhea
- Name
- Genetics
Androgen insensitivity syndrome
X linked mutation
46 XY
Turner syndrome need what
Estrogen replacement
Without increased risk for delayed puberty and osteoporosis
Tall stature
Male
Long extremities
Gynecomastia
- Name
- Genetics
- Tx
- Associated with
Klinefelter
47 XXY
(Barr body)
Tx: testosterone
Associated with advance maternal age
Widely spaced nipples
Murmur
Lymphedema of hands and feet
Neonate
- Name
- Genetics
- Also seen
Turner syndrome
45 XO
Horseshoe kidney
18 month old
Light skinned child , blue eyes with developmental delay
Musty odor
Eczema
- Name
- Deficiency
- Inheritence
- Tx
Phenylketonuria (PKU)
Deficiency of phenylalanine hydroxylase
AR
Tx: Modify diet (decrease phenylalanine [artifical sweeteners] and increase tyrosine)
Neuropathic limb pain
Joint swelling
Angiokeratomas
Telangiectasias
Renal failure
- Name
- Deficiency
- Accumulation
- Genetics
Fabry disease
Alpha-galactosidase A deficiency
Accumulation of ceramide trihexoside
X linked recessive
Painless papules on lower abdomen
peripheral neuropathy
glomerulopathy (renal failure)
- Name
- Deficiency
- Accumulation
Fabry disease
Deficient: alpha- galactosidase
Accumulation: ceramide trihexoside; globotriaosylceramide
Lysosomal storage disease
- accumulation of CM2 ganglioside
- associated with renal failure
Tay-Sach
Fabry disease
Peripheral neuropathy Seizures Optic atrophy Developmental delay Weakness
- Name
- Deficiency
- Accumulation
- genetics
Krabbe disease
Deficient: galactocerebrosidase
Accumulation: galactocerebroside
AR
What type lysosomal storage diseases have myelin sheath pathology leading to peripheral neuropathy
Krabbe disease
Metachromatic leukocystrophy
Hepatosplenomegaly Cherry red spot Painful bony lesions Anemia Fatigue thrombocytopenia
- Name
- Deficiency
- Accumulation
- Microscopically
Gaucher disease
Deficient: glucocerebrosidase
Accumulation: Glucocerebroside
Prominent blue cytoplasmic fibrils (crumpled tissue paper)
Hepatosplenomegaly Cherry red spot Thrombocytopenia Ataxia Dysarthria Dysphagia Gradual worsening of intellectual fxn
- Name
- Deficiency
- Accumulation
- Mircoscopically
- Genetics
Niemann-Pick disease
Deficient: Sphingomyelinase
Accumulation: sphingomyein
Foam cells
AR
Irritability
Regression of motor skills
Macrocepahly
Cherry red spot
- Name
- Deficiency
- Accumulation
- Genetics
Tay-Sachs
Deficient: hexosaminidase A
Accumulation: GM2 ganglioside
AR
Which lysosomal storage disease
1) Accumulation of dermatan sulfate
2) Deficiency in hexosaminidase
1) Hurler dis, hunter syn, scheic syn
2) Tay-sach disease
A 2-year-old child with failure to thrive since infancy now exhibits a seizure. Physical examination shows hepatomegaly and ecchymoses of the skin. Laboratory studies show a blood glucose level of 31 mg/dL. A liver biopsy specimen shows cells filled with clear vacuoles that stain positive for glycogen. Which of the following conditions is most likely to produce these findings? A Hurler syndrome B McArdle disease C Pompe disease D Tay-Sachs disease E Von Gierke disease
- Name
- Deficiency
E. Von Gierke
Def glucose-6-phosphatase
Muscle wasting
Weakness
Progressive vision loss
Dementia
- Name
- Deficiency
- Accumulation
- Genetics
Metachromatic leukodystrophy
Deficient: arylsulfatase
Accumulation: cerebroside sufate
AR
Progressive deterioration Coarse facial features Hepatosplenomegaly Intellectual disability Poor growth (dwarfism) Corneal clouding
- Name
- Deficiency
- Accumulation
- Genetics
Hurler syndrome
Deficient: alpha-L-iduronidase
Accumulation: heparan sulfate and dermatan sulfate
AR
Clouding of cornea
- Name
- Deficiency
- Accumulation
Mucopolysaccharidosis (hurler syndrome)
Deficient: alpha-L-iduronidase
Accumulation: heparan sulfate and dermatan sulfate
2 y.o Progressive deterioration Coarse facial features Hepatosplenomegaly Intellectual disability Poor growth (dwarfism) Aggressive behavior
- Name
- Deficiency
- Accumulation
- Genetics
Hunter syndrome
Deficient: iduronate sulfatase
Accumulation: heparan sulfate and dermatan sulfate
X linked recessive **
Developmental delay Difficulty seeing board Tall, thin habitus Elongated limbs Lens subluxation Thrombus and infarct
- Name
- Error
- Deficiency
- Genetics
Supplement?
Homocystinuria
Error of methionine metabolism
AR deficiency cystathionine beta-synthase that requires pyridoxine (Vit B6) as cofactor
A 6-year-old girl is found to be nearsighted during a vision screening at school, and the school nurse tells the parents the child should be fitted for corrective lenses. Her mother is upset because her daughter is already much taller than her classmates, has an awkward gait, and was recently diagnosed with scoliosis. She is afraid that the glasses will only add to her daughter’s problems at school, where her classmates frequently tease her. When the ophthalmologist observes that the patient’s right lens is dislocated, he suspects that her symptoms are in fact related to an enzyme deficiency. As a result of this deficiency, which of the following amino acids is essential in this patient’s diet? (A) Cysteine (B) Lysine (C) Methionine (D) Tryptophan (E) Tyrosine
The correct answer is A.
Homocystinuria is an inborn error of metabolism caused by a defect in cystathionine synthase, the enzyme that converts homocysteine to cystathionine. Cystathionine
is later converted to cysteine, so patients
with this enzyme defi ciency are required
to supplement their diets with exogenous
cysteine. In addition to marfanlike features and subluxation of the lens, these patients are at increased risk of a variety of cardiovascular derangements,
includin
Intellectual disability Tall stature Osteoporosis Kyphosis Atherosclerosis Subluxation of lens (down ward)
- Name
- Features (5)
- Genetics
Homocystinuria
Fair hair and eye
Developmental delay
Cerebrovascualr accidents
Marfanoid body habitus
AR
Fragile X syndrome
- Genetics
- Mutation
- MOA
- Repeat
- Features (6)
X linked trinucleotide repeat
Mutation for FMR1 gene which codes for FMRP cytoplasmic protein
Involved in mRNA translation of axons and dendrites
CGG repeat
Macro-orchidism Long face Large jaw Everted ears Mitral valve prolapse Intellectual disability
Macro-orchidism Long face Large jaw Everted ears Intellectual disability
Additonal feature
Fragile X syndrome
MVP
CAG
- cause
- inheritence
- signs
CGG
- cause
- inheritence
- signs
CTG
- cause
- inheritence
- signs
GAA
- cause
- ineritence
- signs
Huntington disease
- AD
Fragile X syndrome
- gene hypermethylation
- X linked dominant
- Protruding chin, giant gonads
Myotonic dystrophy
- AD
- Cataracts, Toupee (early balding) , gonadal atrophy
- abnormally long handshake
Friedreich ataxia
- AR
- Ataxic gait
AR trinucleotide repeat disorder Staggering gait Falling Nystagmus Pes cavus Kyphoscoliosis
- Name
- Genetics
- Mutation
Friedreicha ataxia
GAA
Mutation for gene that codes for frataxin (mitochondrial protein that is involved in iron detoxifying and storage)
Large Jaw
Macroorchidism
Long face
Large ears
- inheritence
- mutation
- causes
- assoc with
Fragile X syndrome
X linked dominant
Trinucleotide repeat in FMR1 (CGG)
–> hypermethylation
Autism
Mitral valve prolapse
Cherry red spot
Lysosomes onion skin
No hepatosplenomegaly
Progressive neurodegeneration
- Name
- Deficiency
- Accumulation
- Genetics
TaySachs
deficient: Hexosaminidase A
accumulate: GM2 ganglioside
AR
tAy-saX
heXosaminidase A
” a Gang of 6 small Jews”
Painless papules on lower abdomen (small red/blue marks)
peripheral neuropathy
glomerulopathy (renal failure)
Decreased sweat ( hypohidrosis)
- Name
- Genetics
- Deficiency
- Accumulation
Fabry disease
XR
Deficient: alpha- galactosidase
Accumulation: ceramide trihexoside; globotriaosylceramide
“my fabrite activity is ceramics class we made a galaXy”
A 3-year-old girl is brought to her pediatrician because of a progressive loss of motor function and a decline in her cognitive abilities. On physical examination, it is noted that the patient has decreased deep tendon reflexes, truncal ataxia, and a decreased attention span in comparison to the child’s last visit 6 months ago. The physician knows that her pathology is due to an abnormal accumulation of cerebroside sulfate in her brain, peripheral nerves, kidney, and liver. A defi ciency of which of the following enzymes leads to this condition? (A) α-Galactosidase A (B) β-Galactosidase (C) Arylsulfatase A (D) Hexosaminidase A (E) Sphingomyelinase
- Name
- MOA
- Deficiency
- Accumulation
- Genetics
(C) Arylsulfatase A
Metachromatic leukodystrophy
Central and peripheral demyelination with ataxia and dementia
Deficiency arylsulfatase A
Accumulation cerebrosulfate
AR
Metachromatic leukodystrophy
- MOA
- Deficiency
- Accumulation
- Genetics
Central and peripheral demyelination with ataxia and dementia
Deficiency arylsulfatase A
Accumulation cerebrosulfate
AR
Krabbe diease
- MOA
- Effect
- Features (2)
- Imaging (1)
- Deficiency
- Accumulation
- Genetics
Peripheral neuropathy Destruction of oligodendrocytes Developmental delays Optic atrophy GLobid cells
Deficiency: galactocerebrosidase
Accumulated: galactocerebroside psychosine
AR
“This Krabbe is galaxy headed”
This krab is out of this world”
big glob of krab= globoid
Numbness and tingling in extremities
Blurriness in eyes
Developmental delays
- Name
- Deficiency
- Accumulation
- Genetics
Krabbe
Deficiency: galactocerebrosidase
Accumulated: galactocerebroside psychosine
AR
Hepatomegaly Pancytopenia Osteoporosis Avascular necrois of femur Lipid laden marcophages - crumped tissue paper
Cherry red spot
- Name
- Deficiency
- Accumulation
- Genetics
Gaucher disease
Def: glucocerebrosidase
Accum: glucocerebroside
AR
” oh my gauch hes such a bro”
crying voice= tissue paper cytoplasm
Progressive neurodegeneration
Hepatosplenomegaly
Lipid-laden macrophages
cherry red spot
- Name
- Deficiency
- Accumulation
- Genetics
Niemann-Pick disease
Def: sphingomyelinase
Acc: sphingomyelin
AR
“Pick your BIG nose with your sphinger”
Hepatosplenomegaly
Corneal clouding
Gargoylism
Developmental delay
- Name
- Deficiency
- Accumulation
- Genetics
Hurler syndrome
Def: alpha-L- iduronidase
Accum: heparan sulfate, dermatan sulfate
Glycosaminoglycans (GAGs)
hurLer= L-iduronidase
2 y.o Progressive deterioration Coarse facial features Hepatosplenomegaly Intellectual disability Poor growth (dwarfism) Aggressive behavior
- Name
- Deficiency
- Accumulation
- Genetics
Hunter syndrome
Deficient: iduronate sulfatase
Accumulation: heparan sulfate and dermatan sulfate
XR
“X marks the spot”
“Id hunt it my sulf, dermined
Cant hunt w/ corneal clouding
Meconium ileus
Cystic fibrosis
Cystic fibrosis deficiency of
Vitamins A, D, E, K
Fat soluble vitamins
APGAR score
Activity
2- Active
1- Arms/legs flex
Pulse
2- > 100
1- < 100
0- absent
Grimace
2- Pulls away
1- Flexion extremities
0- Flaccid
Appearance
2- pink
1- blue extremities
0- blue all over
Respiration
2- vigorous cry
1- irregular respirations
Omphalocele associated with
Beckwith-Wiedemann syndrome
NRDS vs Transient tachypnea of newborn
NRDS
- Ground glass appearance
Transient tachypnea of newborn
- Perihilar streaking in interlobular fissures
PDA associated with
Congenital rubella
DiGeorge syndrome
- Inheritence
- Features (8)
- Genetics
AD
Tetralogy of Fallot
VSD
Micrognathia
Long face
Low set ears
Thymic aplasia
Cleft palate
Hypocalcemia
22q11
Pyloric stenosis lab (3)
Hypochloremic
Hypokalemic
Metabolic alkalosis
Malrotation with volvulus
- Occurs
- Features (4)
- Imaging
First month of life
Bilious emesis
Crampy abdominal pain
Distention
Passage of blood or mucus in stool
Bird beak appearance
Failure to pass meconium
FFT
Abdominal distention
Explosive discharge on rectal exam
- Name
- MOA
Hirschsprung disease
Lack of ganglion cells in distal colon
Low urine output
Mass above pubis
Distended bladder
Posterior urethral valves
Kawasaki disease
- Features (6)
- Risk
CRASH and BURN
Conjuntivitis Rash Adenopathy (unilateral) Strawberry tongue Hands and feet (red, swollen, flaky skin) BURN fever > 104 for > 5 days
Risk of aneurysm
6 month old boy
Recurrent infections
S. pneumoniae
Pseudomonas
Absent tonsils
- Name
- Genetics
- MOA
- Affects who
Bruton agammaglobulinemia
X linked recessive
B cell deficiency
Only in boys
Male
Thrombocytopenia
Bleeding
Eczema
Recurrent otitis media
- Name
- Genetics
- Causes (2)
Wiskott Aldrich syndrome
X linked recessive
Increased IgE/IgA
Decreased IgM
Ataxia
spider angiomas on face
IgA deficiency
- defect
- failure
- increased
- decreased
- increase risk of
Ataxia telangiectasia
Defects in ATM gene
Failure to repair DNA ds breaks –> cell cycle arrest
Increase AFP
Decreased IgA, IgG, IgE
Lymphopenia
Incrased risk lymphoma and leukemia
Radiation sensitive try to avoid X rays
Recurrent skin and mucosal infections
No pus
Impaired wound healing
Delayed separation of umbilical cord
- Name
- Defect
- MOA
- Genetics
- Causes (2)
Leukocyte adhesion deficiency (type 1)
Defect LFA-1 integrin (CD18) protein on phagocytes
Impaired migration and chemotaxis
AR
Increased neutrophils
Absence of neutrophils at infection site
Giant cytoplasmic granules in PMN
Partial albinism
Recurrent respiratory tract and skin infections
Neurologic disorders
- Name
- Genetics
- Defect
- MOA
- Features (5)
Chediak- Higashi syndrome
AR
LYST gene defect
(lysosomal transport)
Defective phagocyte lysosome fusion
Pancytopenia
PAIN triangle
- giant cytoplasmic granules
- partial albinism
- infections
- neurologic disorders
A pediatrician becomes concerned after learning the family and medical history of an infant who is currently suffering from pneumonia, with a presumed diagnosis of Streptococcus pneumoniae infection. Over the past year, the patient has suffered from erysipelas as well as a previous bout of pneumococcal pneumonia; both were treated successfully with antibiotics. The patient’s mother says that her son’s maternal uncle also suffered from repeated bacterial infections and was successfully treated with antibiotics. On physical examination, it appears that the patient does not have tonsils. His mother denies a previous tonsillectomy. Analysis of the boy’s serum would most likely yield which of the following results?
(A) Absence of T lymphocytes
(B) <200 CD4+ T lymphocytes/mm3
(C) IgA, IgG, and IgM levels normal
(D) IgG and IgM levels markedly decreased,
no IgA
(E) IgG and IgM levels normal, IgA markedly
decreased
(D) IgG and IgM levels markedly decreased,
no IgA
Bruton’s agammglobulinemia
2. A 23-year-old man comes to the physician with a bacterial infection. On questioning the patient reveals a history of recurrent bacterial, fungal, and viral infections. Blood is drawn and sent for laboratory analysis, which reveals all levels of immune cells (eg., T lymphocytes, B lymphocytes) are low. Which of the following conditions is most likely to have caused the patient’s symptoms? (A) Ataxia-telangiectasia (B) Chédiak-Higashi disease (C) Common variable immunodefi ciency (D) Job’s syndrome (E) Severe combined immunodefi ciency (F) Wiskott-Aldrich syndrome (G) X-linked agammaglobulinemia
E. Severe combined immunodeficiency
9. A 12-year-old girl is brought to the pediatrician by her mother because of a fever. The physician notes that the girl has features of albinism and the mother states that her daughter has always looked the way she does. The physician diagnoses the girl with a staphylococcal infection and prescribes a course of antibiotics. Three months later, the child returns to the pediatrician with another streptococcal infection. The patient’s medical records indicate that she has had repeated bouts of staphylococcal and streptococcal infections for her entire life. This patient most likely has which of the following types of immune deficiency? (A) Chédiak-Higashi disease (B) Chronic granulomatous disease (C) Hyper-IgM syndrome (D) Selective IgA defi ciency (E) Severe combined immunodeficiency
- Name
- Genetics
- Deficiency
A. Chediak-Higashi disease
AR
Deficiency in lysosomal emptying of phagocytic cells due to defect in microtubular function
- Hyper-IgM syndrome usually presents with severe pyogenic infections. The typical immunoglobulin profile in a patient with this disease shows an elevated level of IgM in contrast to the other immunoglobulin isotypes. Which of the following is the etiology behind the increased level of IgM in a patient with hyper- IgM syndrome?
(A) A defect in DNA repair enzymes
(B) A defect in LFA-1 adhesion proteins on
phagocytes
(C) A defect in the CD40 ligand on CD4 T
helper cells
(D) Failure of interferon-! production
(E) Failure of the thymus and parathyroid
glands to develop
- MOA (2)
C. Hyper IgM Syndrome
Defect in CD40 ligand on CD4 T helper cells
Cant class switch
23. A 14-year-old boy presents to the physician with recurrent pyogenic infections. Physical examination shows that the boy has pruritic papulovesicular dermatitis. Blood is drawn and sent for laboratory evaluation of platelets and immunoglobulin levels. The results show a markedly low platelet count, a low serum IgM level, and an elevated IgA level. This patient most likely has which of the following conditions? (A) Bruton’s agammaglobulinemia (B) Chédiak-Higashi disease (C) Job’s syndrome (D) Thymic aplasia (E) Wiskott-Aldrich syndrome
- Name
- Features (3)
E. Wiskott aldrich syndrome
Recurrent pyogenic infections
Eczema
Thrombocytopenia
- A 2-year-old boy is brought to the physician by his parents because of recurrent sinus infections. The parents also state that the boy has had multiple lung infections. Which of the following results would most likely be found on further testing?
(A) A deficit in IgA level
(B) A low IgM level, with increased IgA
(C) A negative nitroblue tetrazolium dye test
(D) An increase in IgE level
(E) A normal Ig level for all isotypes
A. Selective immunoglobulin deficiency
IgA is most common
- A 23-year-old woman comes to the physician for a routine checkup. She has generally been well over the past year, although she notes that she has “had a few falls lately.” On physical examination, the lesion shown in the image is found on her skin. Blood is drawn for laboratory evaluation. The results show that the woman has very low levels of IgA. Based on her presentation, this patient will most likely also present with which of the following symptoms?
Spot near eye where you can see blood vessel lines
- Name
- MOA
A. Ataxia telangiectasia is a defect in DNA repair enzymes
- A 10-year-old boy with an x-linked immunodeficiency disease suffers from chronic recurrent gut inflammation, which modestly improves with cyclosporine therapy. The child has had previous laboratory evaluation that showed a
negative reaction to the nitroblue tetrazolium test. The patient’s father wants to know how his son can have both an immunodeficiency disease as well as an autoimmune disease. Deficiencies in which of the following immunologic processes or molecules provides a logical link between this child’s immunodeficiency and his autoimmune gut inflammation?
(A) Antibodies
(B) IgA
(C) IgM
(D) Lysosomes
(E) Neutrophils
E. Chronic granulomatous disease
- A 3-month-old girl is brought to her pediatrician because she has a high fever and cough. The patient is started on an antibiotic regimen. Over the next 24 hours her condition deteriorates and she is brought to the emergency department.
Further history reveals that the child’s birth was complicated by a delayed umbilical
separation. This patient most likely has
which of the following immune defi ciencies?
(A) Chronic granulomatous disease
(B) Leukocyte adhesion defi ciency syndrome
(C) Selective IgA defi ciency
(D) Severe combined immunodefi ciency
(E) Wiskott–Aldrich syndrome
B. Leukocyte adhesion deficiency
- A 7-year-old boy presents to the clinic with a staphylococcal infection. He is well known at the clinic because he has had recurrent staphylococcal infections for most of his life. He is started on an antibiotic regimen and the infection subsides. Three weeks later, the boy is diagnosed with pruritic papulovesicular dermatitis. Which of the following immune deficiency syndromes would account for this patient’s recurrent
staphylococcal infections and pruritic papulovesicular dermatitis?
(A) Ataxia-telangiectasia
(B) Bruton’s agammaglobulinemia
(C) Job’s syndrome
(D) Thymic aplasia
(E) Wiskott-Aldrich syndrome
- Name
- Failure of
- MOA
- Features (3)
C. Job’s syndrome
Failure of helper T lymphocytes to produce IFN-gamma
Decreased in activation of phagocytic cells —> failiure of neutrophils to respond to stimuli
Recurrent staphylococcal abscesses
Eczema
High IgE
Dihydroorhodamine (DHR) test
Nitroblue tetrazolium test
Chronic granulomatous disease
Recurrent neisseria infections
Terminal complement deficiency (C5-C9)
Recurrent episodes of angioedema lasting 2-72 hours
Provoked by stress or trauma
C1 esterase inhibitor deficiency (hereditary angioedema)
SOB
Fever, chills
Hx Cystic fibrosis
Nasal flaring
Barrel shaped chest
Clubbing
- Name
- Organism
Bronchiectasis
S. Aureus
Type 1 DM at risk for
Celiac disease
Direct hyperbilirubinemia
2-8 weeks
Pale stools
Hepatomegaly
Biliary atresia
Underdeveloped phallus
Ectopic urethral meatus
Elevated 17-hydroxyprogesterone
- Name
- Genotype
CAH
46,XX
Edema
Hypoalbuminemia
Elevate protein
Nephrotic syndrome
Minimal change disease
Focal segmental glomerulosclerosis
Memranous nephropathy
Edema
Hypoalbuminemia
Elevated protein > 3 g
Hep B infxn
Membranous nephropathy
Joint hypermobility
Long fingers
Tall
Scoliosis
Lens dislocation
- Name
- Additional feature
Marfan syndrome
Aortic root dilation
Ehlers danlos
- Caused by
- Features (3)
- Not seen
Collagen disorder
Scoliosis
Joint laxity
Aortic dilation
NOT TALL
Cyanosis
Mild nasal congestion
Low fever
Bronchiolitis 6 months ago other wise helathy
Pulse ox 85%
100% oxygen fails to increase pulse or fix cyanosis
- Name
- exposure
- Normal
- Tx/ MOA
Methemoglobinemia
Exposure to oxidizing substances
- Dapson
- Nitrites
- Local anesthetic
Normal PaO2
Tx: Methylene blue
- Electron acceptor for NADPH which reduces methemoglobin to hemoglobin
Recurrent skin abscesses
Staph Aureus
Serratia infxn
- Name
- Genetics
- MOA
Chronic granulomatous disease
X link immunodeficiency
Abnormalities of enzyme NADPH oxidase, no formation of superoxide radicals
Tx Campylobacter gastroenteritis
Self limiting
Symptomatic care
Antibiotics only if > 7 days
8 y.o
Profuse Oily non bloody diarrhea
Foul smelling
Sick last month
Just returned from lake house
- Name
- MOA
- Tx
Giardiasis
Local epithelial disruption
Tx: Tinidazole
Dull left side headache
Throbbing pain near temple
Surgery yesterday
- Name
- Tx (3)
Migraine
Tx: Dark room, NSAIDS
Refractory: Triptan
Breast development
Pubic hair
Hyperpigmented macules on back
2 long bone fractures
- Name
- Genetic
- MOA
- Features (5)
McCune Albright syndrome
GNAS gene
Constant G protein activation —> overproduction of pituitary hormones
Polyostotic fibrous dysplasia (fractures)
Precocious puberty
Thyrotoxicosis
Acromegaly
Cushing syndrome
Fever for weeks
High temp in evening with rash
Resolves in morning
Body aches
Swelling of both knees
- Name
- Features (4)
Juvenile idiopathic arthritis (JIA)
Hepatosplenomegaly
Lymphadenopathy
Leukocytosis
Thrombocytosis
Dark urine 2 days
Fever and sore throat three weeks ago
HTN
RBC in urine
Periorbital edema
1+ pitting edema
- Name
- MOA
- Causes
- Features (3)
Acute post streptococcal glomerulonephritis
Mesangial immune complex deposits
Decreased C3 levels
Hematuria*
Edema*
HTN*
Vomiting
1-2 days
Repeats
Beginning of year
Hx?
Cyclic vomiting syndrome
Hx: Migraines
Breastfeeding jaundice vs Breast milk jaundice
Breastfeeding jaundice
- First week of life
- Insufficient intake of breast milk
- signs of dehydration
Tx: Increase feeding
Breast milk jaundice
- 3-5 days peaks at 2 weeks
- high levels of beta-glucuronidase in breast milk -> deconjugate bilirubin
ALL vs Aplastic anemia
Aplastic anemia
- No pain
ALL
- Bone pain
- Hepatosplenomegaly
- Anemia
- Petechiae
- Thrombocytopenia
Bone pain
Worse at night
Hepatomegaly
Petechiae
Thrombocytopenia
Low Hemoglobin
Low Leukocytes
ALL
Leukopenia
Recurrent sinopulmonary infections
Streptococcus pneumonia
Giardia
Common variable immunodeficiency
or
X linked agammaglobulinemia
Respiratory and GI infections
Salmonella
Giardia
Campylobacter
Seen with Foreign body aspiration
Hyperinflation of affected side
Mediastinal shift toward unaffected side
Get Rigid bronchoscopy
Abdominal pain
Jaundice
Palpable mass
Elevated lipase and amyase
Biliary cyst
- dilation of biliary tree
Sudden ascending weakness
Diarrhea illness that resolved
- Name
- MOA
- Check
- Tx
Guillain Barre syndrome
Demyelination of peripheral nerve fibers
Spirometry - monitor respiratory muscle strength
IVIG or plasmapheresis
Doll like face with round cheeks
Hepatomegaly
Seizure
Elevated lactic acid
Low glucose
- Name
- Accumulation
- Key Feature (1)
Glucose-6-phosphatase deficiency
Glycogen accumulation
Hypoglycemia
Tx Tourette syndrome
Antidopaminergic
- Tetrabenazine
Black vomit
Radioopaque tablets
Iron poisoning
Deferoxamine
Bacterial meningitis in child can cause
Hearing loss
Edema
Fatigue
Abdominal pain
Proteinuria
- Name
- Example
- MOA
- Tx
Nephrotic syndrome
Minimal change disease
Diffuse effacement of foot processes
Tx: Prednisone
What screening if born < 32 weeks
Head ultrasound for intraventricular hemorrhage
RDS risk factor
Prematurity
Maternal diabets
Alport syndrome on histologic exam
Longitudinal splitting of glomerular basement memebrane
Linear deposition of IgG along the glomerular basement membrane
Goodpasture syndrome
Pulmonary symptoms
Follicular conjunctivitis
C Trachoma
Azithromycin
Cystic fibrosis
Recurrent sinopulmonary infections
Bibasilar crackles
Nasal flaring
Fever
- Name
- Organism
- Tx (3)
Pneumonia
Staph aureus
Cefepime
Oseltamivir
IV Vancomycin
Precocious puberty
Advanced bone age
High LH
Central precocious puberty
Get MRI of brain
Botulism symptoms ( 5)
Hypotonia
Absent gag reflex
Ptosis *
Symmetric descending paralysis
Decreased salivation
Injested pills
Acidosis
Anion gap
Iron pills
Pills visible on xray
Ingested pills
N/V
Acidosis
Tinnitus
Salicylate (aspirin)
Pills not visable on X ray
Premature
10 month old cant stand
Delayed gross motor milestones
Resistance to passive stretch
Hypertonia
Hyperreflexia
Feet point down and inward (equinovarus deformity)
Cerebral palsy (CP)
Delayed gross motor milestones
Proximal muscle weakness
Hypotonia
Spinal muscular atrophy
Iron deficiency see what
Low erythrocyte count
Low MCV
RBC distribution width is elevated because amount of iron available varies throughout day
Refeeding get an increase of
Insulin
Recurrent kidney stones in 18 y.o
Hexagonal crystals
Cystinuria
Impaired transport of cystine and amino acids
Persistent oxygen requirements leads to what disorder
Bronchopulmonary dysplasia
Inspiratory stridor
Laryngomalacia
Hx Sickle cell in mother
Low urine specific gravity
No glucose in urine
Normal serum sodium
Hyposthenuria
HbA > HbS
Vit K deficiency
Reduced coagulation factor carboxylation
Varicocele what to do
Ultrasound of abdomen
Neonates
Sleeping and feeding difficulties
Vomiting/ diarrhea
HIgh pitched cry
Heroin
Medial metaphyseal corner fracture of the distal femur
Child abuse
Bucket-handle fracture
Congenital lymphedema in turner syndrome due to
Lymphatic network dysgenesis
Coloboma
Hole in one eye
CHARGE syndrome
CHARGE syndrome
Coloboma Heart defects (VSD) Atresia choanae Retardation of growth Genitourinary anomalies Ear abnormalities (hearing loss)
Erythematous papular rash
Small well defined lytic lesion on distal femoral diaphyseal lesion
Langerhans cell histiocytosis
15 y.o develops gait instability
Speech difficult to understand
Wide based gait
Atrophy of medulla and dorsal columns of spinal cord
At risk for
- Name
- Genetics
- At risk for (3)
Friedreich ataxia
AR
Hypertrophic cardiomyopathy
DM
Scoliosis
Childs abdominal pain
Lower extremity purpura
Swollen and painful knee
- Name
- What is it
- Biopsy
Henoch Schonlein purpura
IgA mediated leukocytoclastic vasculitis
Mesangial deposition of IgA
Fever
Hives
Joint pain
1 week ago streptococcal pharyngitis, on penicillin
Serum sickness-like reaction
Hypersensitvity to beta lactams
Sandpaper rash
Scarlet fever
High fever
bullous lesions
Painful hemorrhagic oral erosions
Sulfa drug
Stevens johnson syndrome
Bronchiolitis
- Age
- When
- Most common cause
- Features (5)
< 2 y.o
Fall of winter
RSV most common cause
Fever
Rhinorrhea
Cough
SOB
Intercostal retractions
Tx Meningitis
Neonates
- Ampicillin and cefotaxime or gentamicin
Children: ceftriaxone and vancomycin
Tx Pertussis
Azithromycin 10 days
Red cheeks
Worse with sun exposure
Aplastic crisis
Erythema infectiosum (fifth disease)
Parvovirus B19
Tumor lysis syndrome
- Features (4)
- Tx (3)
Hyperkalemia
Hyperphosphatemia
Hyperuricemia
Hypocalcemia
Just started chemotherapy
Tx: Fluids
Diuretics
Allopurinol
Tumor
Elevated 24 hr urinary catecholamines
Neuroblastoma
Abdominal mass that crosses midline
Neuroblastoma
Wilms doesnt cross midline
Painless limp
Thigh muscle atrophy
6 y.o boy
Limited abduction and internal rotation
Legg-Calve Perthes disease
Painful limp
Limited abduction and internal rotation
Obese
10 y.o
Slipped capital femoral epiphysis
Scoliosis
< 20 observation
20-49 bracing
> 50 surgery
Introducing foods
No solid food before 6 months
No cow milk before 12 months
CI for specific vaccines
Hx intussusception dont give Rotavirus vaccine
Hep B vaccine only if > 2 kg
Lead poisoning in house
Before 1950
Infant
PDA
Sensorineural hearing loss in infant
Hepatosplenomegaly
Rubella
Salt wasting
21-hydroxylase deficiency
Elevated 17-hydroxyprogresterone
Epiglottitis tx
Haemophilus influenzae type b
Streptococcus
staph aureus
Ceftriaxone + vancomycin
Self mutilating behavior
Gout
Neprholithiasis
Lesch Nyhan syndrome
Seizures
Loss of speech
Pulling of hair
Rett syndrome
Septic arthritis tx
Vancomycin + ceftriaxone
Pleural effusion
Increased triglycerides
Exudative effusions
Pleural LDH/ serum LDH > 0.6
Pleural protein / serum protein > 0.5
Increased triglycerides= chylothorax, disruption to the thoracic duct
Bone X ray
Small round circle
Osteoid osteoma
Low CD3
Low CD 29
Tx
Severe combined immunodeficiency
Tx: Stem cell transplant
Test to identify retinoblastoma
Dilated funduscopic exam
Conductive hearing loss
Cholesteatoma
Chronic otitis media
Foreign body
Otosclerosis
ADHD non-stimulant
Atomoxetine
Narrow colon
Not passing meconium
At risk for
Hirschsprung disease
Risk: Chronic rhinosinusitis
CF
Failure to gain weight
Blood pH 7.21
Urine pH 7.9
Low bicarbonate
Urine
- K normal
- Na normal
Normal anion gap
Renal tubular acidosis Type 1 (Distal)
Poor hydrogen secretion into urine
Renal tubular acidosis type 2
Proximal
Poor bicarbonate resorption
< 5.5
Low to normal serum potassium
Fanconi
Renal tubular acidosis type 4
Aldosterone resistance
pH < 5.5
High serum potassium
Obstructive uropathy
CAH
Anion gap
Na-Cl-Bicarb
6-10 normal
5 y.o
Pain with moving legs, developed suddenly
Purplish nonblanching rash
Hematuria
- Name
- Tx
- Risk
Henoch Schonlein purpura
NSAIDS
At risk for intussuscpetion
Tx OCD
SSRI
Abdominal pain
watery diarrhea—> bloody
Seizure
Organism
Shigella
Fanconi vs Diamond black fan
Fanconi
- anemia is pancytopenic
DBA
- pure red cell aplasia with reticulocytopenia
- normal platelets
- normal WBC
Large tongue
One leg enlarged
Hypoglycemia
- Name
- Genetics
- Increased
- Features (5)
- Risk for (2)
- Screening
Beck-With Wiedemann sydnrome
11p15
Increased insulin like growth factor
Macrosomia Macroglossia Hemihyperplasia Omphalocele Hypoglycemia
Wilms tumor
Hepatoblastoma
Get abdominal U/S and alpha feto protein every 3 months
Mass on superior pole of right kidney
HTN
3 y.o
Wilms tumor
(Nephroblastoma)
2 years old
Watery diarrhea 1-2 days after exposure
Norovirus
Red swollen eye
Abrasion under eye
Preseptal cellulities
Fever irritability
Erytehma and flaccid blisters all over infant
+ Nikolsky sign
Staphylococcal scalded skin syndrome
Bullous impetigo
- organism
- appearance
- description (2)
S aureus
Patietns appear well
Blisters in confined to primary area of infection
when ruptured blisters leave distinct honey colored crust
Tx Croup
Humidified air + corticosteriods
If progress to moderate/ severe= stridor at rest
—> nebulized epinephrine
Severe hydrocephalus in newborn
Vit K deficiency
Intracranial hemorrhage
Hepatomegaly
Jaundice
Clear rhinorrhea
Maculopapular rash on feet and butt that desquamates
Syphilis
Abnormal long-bone radiographs
Septic arthrits vs transient synovitis
Septic arthritis
- cant bear weight
Failure to thrive
Greasy stools
Recurrent infections
Nose bleeds
CF
Pancreatic insufficiency
Vitamin deficiencies
Telangiectasia
Headache
Vomiting
CT scan of head shows?
Hemorrhagic telangiectasia
Hemorrhagic stroke
Hyperdense fluid collection with irregular margins in the right cerebral cortex
Nontender abdominal mass
Increased in VMA and HVA
Neuroblastoma
Bilious emesis within hours of first feeding
Duodenal atresia
Infant has high fever and onset of rash once fever breaks
At risk for
Roseola infantum
HHV6
Febrile seizures
Boy has chronic respiratory infections
Nitroblue tetrazolium test is negative
Chronic granulomatous disease
Child has eczema, thrombocytopenia and high levels of IgA
Wiskott aldrich syndrome
4 month old with life threatening pseudomonas infection
Bruton X linked agammaglobulinemia
Tx Acute phase of kawaskaki disease
High dose ASA for inflammation and fever
IVIG to prevent coronary artery aneurysm
Vaccinations at 6 months
HBV DTaP Hib IPV PCV Rotavirus Influenza
Rotate HIP Drop It Hot
Croup caused by
Parainfluenza virus type 1
Homeless child is small for age, has peeling skin and swollen belly
Kwashiorkor
Protein malnutrition
Intellectual disability
Gout
Self mutilation
CHoreoathetosis
- Name
- Genetics
- MOA
Lesch-Nyhan sydnrome
X linked
Purine salvage problem with HGPRTase deficiency
New born with machinery murmur give what
PDA
Give indomethacin to close the PDA
First bone female who was born breech position is found to have asymmetric skin folds on new born exam.
Diagnosis?
Tx?
Developmental dysplasia of the hip
< 6 months Pavlik harness to maintain abduction
11 y.o obese AA boy presents with sudden onset of limp.
Diagnosis?
Work up?
Slipped capital femoral epiphysis
AP and frog leg lateral xrays
Active 13 year old boy has anterior knee pain
Diagnosis?
Osgood-Schlatter disease
Cardiac rhabdomyoma
Tuberous sclerosis
Optic nerve glioma
Neurofibromatosis 1
Vestibular schwannoma
Neurofbiromatosis 2
Child severe oral pain
2 sinus infections
Cellulitis
Staph and Strep
Periodontal inflamation with ulceration and necrosis
Anemia
leukocytosis
90% neutrophils
Defective leukocyte adhesion
Neutrophilia
Adenosine deaminase deficiency
- Genetics
- Name
- Deficency
- Causes
- Lab
AR
Severe combined immunodeficiency
Deficient formation of mature B and T lymphocytes
Severe infections and failure to thrive
Lymphopenia
Defective B lymphocyte maturation
- Name
- Causes
- Lab
X linked agammaglobulinemia
Recurrent sinopulmonary and GI infections
Low B cell and immunoglobulin concentrations
Development of pubic hair in 5 y.o girl Obese No breast development Facial acne Normal bone age
Premature adrenarche
By early activation of adrenal androgens
Headaches
Poor growth
Pubertal delay
Papilledema
Craniopharyngioma
Suprasellar mass with calcifications
Nasal polyps
Digital clubbing
Recurrent infections
Vit D deficiency
Bruising
Cystic fibrosis
Recurrent sinopulmonary infections
Nasal polyposis
Digital clubbing
No pancreatic insufficiency
Primary ciliary dyskinesia
Immotile cilia syndrome
Newborn in respiratory distress
Place on nasal continuous positive airway pressure and iV fluids
A few minutes go by and develops acute onset of grunting and increased work of breathing
Lung sounds decreased on left
Heart sounds loudest over right side of chest
Transillumination shows increased brightness on left relative to right
Pneumothorax
Needle thoracostomy
Seen with Kawasaki (9)
Prolonged fever
Conjunctivitis
Erythema
Fissured lips
Strawberry tongue
Polymorphous rash
Edema extremities *
Desquamation of hands and feet
Cervical lymphadenopathy
6 months should be able to (6)
Sit momentarily propped on hands
Transfer objects hand to hand
Raking grasp
Respond to name
Bables
Stranger anxiety
9 months (7)
Pulls to stand
Cruises
3 finger pincher
Holds bottle/ cup
Dadda, mamma
Waves
Pat a cake
Lead level > 12 (normal < 5)
What to do?
Measure venous lead levels
Succimer if 45-69
EDTA if > 70
When to introduce pureed foods to baby
6 months
Meningitis in new born
Group B strep
Tx Congenital diaphragmatic hernia
Endotracheal intubation
Gastric decompression
Surgical correction
3 day old
Jaundice
hepatomegaly
Vomiting
Increased bilirubin
Decreased glucose
+ urine reducing substances
Galactosemia
Galactose-1-phosphate uridylyltransferase (GALT) deficiency
Soy based formula tx
Glycogen storage disease vs galactosemia
Glycogen storage= 3-6 months
Caused by periods of fasting
Galactosemia
- within days
Urea cycle defect
Lethary
Vomiting after breast milk given
Elevated ammonia level
Diffuse scalp swelling
Anemia
Tahycardia
Pale
Subgaleal vein shearing
Subperiosteal vessel rupture
Cephalohematoma
FMR1 gene
- Name
- Features (6)
Fragile X
Neurobehavioral problems Prominent forehead Large ears Long narrow face Prominent chin
Macroorchidism
Bone fractures multiple
Blue grey teeth
Osteogenesis imperfecta
Juvenile myoclonic epilepsy
Adolescents
Myoclonic jerks immediately on wakening
Child started staring off, head tilt to right and arm twitching
Chewing of lips
Didnt respond to name 2-3 minutes
Couldnt make arm 5-10 minutes afterwards
Focal seizure
Down syndrome associated with dilated bowel
Hirschsprung disease
Failure of neural crest cell migration during fetal intestinal development
Genotype of Kallmann syndrome
46, XX
Anosmia (inability to distinguish odors)
16 y.o right knee swelling
Symptoms after soccer practice yesterday
Mild stiffness
Fatigue and flulike illnesses over part month
Pain occurring in variable joints
Yellow translucent fluid
Leukocytosis
Nothing on gram stain
Borrelia burgdorferi infection
Aspirin given to child
- Name
- Feature (2)
- Increased (6)
Reyes syndrome
Acute liver failure
Encephalopathy
Increased AST, ALT
Increased PT, INR, PTT
Increased NH3
Meningitis
Lymphocytosis
Elevated protein
Normal glucose
Aseptic (viral) meningitis
HIV infection
How to prevent measles spead
Airborne precautions
Negative pressure room
N95 face mask
Retinal hemangioblastoma
- Name
- Also seen (2)
- Genetics
- Also found
Von Hippel Lindau disease
Pheochromocytoma
Renal cell carcinoma
AD
Vision loss
5 month old
Seizures
Hypopigmented ellipitical macules on chest
What intracranial lesions
- Name
- Description
- Also found (6)
Tuberous sclerosis
Subependymal giant cell tumor
Rhabdomyomas in heart
Renal: angiomyolipomas
Epilepsy
Autism
Antiofibromas of the malar region
Shagreen patches
Night blindness
Optic disc pallow
Attenuation of retinal vessels with focal areas of discoloration bilaterally
- Name
- Mutation
- Causes (3)
Retinitis pigmentosa
Genetic mutation causing loss of photoreceptors
Progressive retinal degeneration
Loss of midperiphery
Legally blind by 40
Yellow eyes
Jaundice
Pale conjunctiva
Splenomegaly
Anemia
Reticulocytes
MCV low
Elevated bilirubin
Spheocytes
Test to get
- Name
- Test
- Genetics
Hereditary spherocytosis
Eosin-5-maleimide binding
AD
Erythrocyte CD55 and CD 59 protein testing
Paroxysmal nocturnal hemoglobinuria (PNH)
Hemolytic anemia
Cytopenias
Hypercoagulability
High fever followed by rash
Rosela infantum
HHV-6
<2 y.o
Supportive care