From Becky Flashcards
10-14 days of age
When do newborns return to their birth weight after the in
5-10%
How much weight do newborns tend to lose in the first few
25-30 grams per day
Beyond the first two weeks of life, infants should gain __
- An infant is < 5th percentile for weight
- An infant is < 5th percentile in weight for length, or
- The rate of growth results in the infant crossing more than two major lines on the standard infant growth curve.
What are the three definitions of failure to thrive?
Most sources report that organic problems account for < 10% of cases of failure to thrive, while psychosocial problems account for the majority of cases
Are organic or non-organic causes of FTT more common?
10-30 minutes at a time
How often do young, breastfeeding infants typically nurse f
Five to six wet diapers per day, plus multiple stools per day
How many wet diapers do infant typically make per day?
Congenital heart disease/CHF (poor wt gain/FTT?)
Respiratory infection (fever?)
Sepsis (The early signs of sepsis can be subtle and nonspecific, including lack of fever)
Metabolic disorder (+ on newborn screening?)
DDx for respiratory distress and feeding difficulty in an
40-60 breaths per minute
Normal respiratory rate in a newborn.
Coarctation of the aorta
A discrepancy in the strength of the brachial and femoral
Diastolic.
Choose one:Systolic/Diastolic murmurs are always pathologic
Tetralogy of Fallot
Most common congenital heart defect.
Ventricular septal defect Mitral regurgitation Tricuspid regurgitation
Three causes of holosystolic murmurs.
Aortic stenosis
Pulmonic stenosis
Two causes of systolic ejection murmurs.
HepatomegalyDecreased renal blood flow, RAAS activation, Fluid retention, Systemic venous congestion, and hepatomegaly
What liver finding is a fairly consistent finding in child
CHF Hepatitis Congenital infections Inborn errors of metabolism Anemias Tumours (less commonly)
DDx of hepatomegaly in infants.
Dyspnea with feedingsDiapohresisPoor growthActive precordiumHepatomegaly
What are the classic findings of CHF in an infant within a
Innocent murmurMost common between 3-7 years”Musical or vibratory”Heard best as left lower sternal borded
Stills Murmur
Still’s Murmur
Innocent murmurMost common between 3-7 yearsMusical or vi
While the children are learning their ABCs, you may discover:
A - Atrial septal defect
B- Bicuspid Aortic Valve
What congenital heart defects are more likely to be detect
ASD
Heart sound: Widely split, fixed S2
Ventricular septal defect
Heart sound:Holosystolic murmur beginning with S1 with a
Aortic stenosis
Heart Sound:Systolic ejection murmur, radiating to the ne
Pulmonic stenosis
Heart sound:Systolic ejection murmur, radiating to the lu
Associated with patent ductus arteriosus
Continuous machine-like murmur and bounding pulses (from
PROVe
Pulmonary infundibular stenosis (RV outflow tract obstruction)RVHOverriding aortaVentricular septal defect (VSD)
Four main components of Tetrology of Fallot.
Tetrology of FallotTransposition of the Great ArteriesTruncus arteriosusTricuspid AtresiaTotal Anomalous pulmonary venous return
5 Ts of cyanotic heart defects
VSDSevere aortic stenosisCoarctation of the aortaLarge patent ductus arteriosus
Heart defects that present with a murmur and signs of CHF
Cardiomegaly Increased pulmonary vascular markings Pulmonary edema
Hallmark chest x-ray findings of a large left-to-right shu
The typical ECG findings for an infant with a large VSD are prominent biventricular forces (high voltage QRS complexes in leads V1 and V2), suggesting both LV volume overload and RV pressure overload.
Typical VSD ECG findings.
There is elevated pulmonary vascular resistance in a newborn.
When the systemic and pulmonary vascular resistances (PVR) are nearly equal, there is no reason for blood to shunt through the VSD.
The murmur of a VSD will not appear until the PVR drops, usually at a few days to weeks of age. This is why, typically, VSD murmurs are not heard in the nursery.
Why are VSD murmurs not heard in newborns (ie. why may the
“FED”
Furosemide(counteract retention caused by activation of RAAS)
Elanapril (reduce afterload, such that SVR is low to promte fwd flow of blood from left ventricle as opposed to through the VSD to the pulmonary vasculature).
Digoxin (mechanism not clear, as contractility is not an issue)
Increased caloric intake (for the FTT)
Treatment for newborn with CHF.
Pulmonary vascular obstructive disease; outcome ofunrepaired VSD.
The pulmonary vasculature constricts in response to exposure to high pressure and high flow. With chronic exposure to these conditions the pulmonary vasculature will develop permanent changes and loses the ability to relax. This causes the pulmonary vascular resistance to exceed the systemic resistance, and shunting through the VSD will shift from left-to-right to right-to-left. The patient will then develop cyanosis, progressing to polycythemia, heart failure, and death.
Eisenmenger syndrome
Hyperdynamic precordium with a holosystolic murmur
A 5-week-old infant is brought to the pediatrician for fai
RA > foramen ovale > LA > LV > systemic circulation
Foramen ovale connects RA to LA, bypassing RV and lungs
You have accepted a part-time tutoring job for first-year m
Hepatitis B vaccine.
Which vaccine is given within the first 12 hours of life?
~4-5 months
When does birth weight double (for an average infant)?
Formula fed infants tend to gain weight faster than do breastfed infants because they ingest more calories.
Select one:Formula/Breastfed infants tend to gain weight fa
Maternal HTNDM (some are LGA)LupusMaternal malnutrition
Name four maternal conditions during pregnancy that can ca
High Metabolic RateCHFCongenital heart defectsMalabsorptionCeliacLow IntakeMalnutritionFormula allergyChronic diarrhea or vomiting (?severe GERD, bowel obst.)Neglect
OtherDevelopmental delay with poor suck and swallow
Name at least three conditions that can result in FTT.
Method (bottle, breast; ask further details on sufficient breast milk, both breasts, formula prepackaged or prepared, etc.)EffortTime it takes to eatDiaphoresisSpits up after feeding?
What are 4 key questions to ask with regard to feeds?
20 cal/oz
667 cal/L
Calorie content of breast milk (which formula matches).
A formula that is made for infants that have protein or fat malabsorption; protein is fragmented and thus easier to digest.
What is Pregestimil used for.
Breast milk contains less vitamin D than most commercial formulas.
Select one:Breast milk/formula contains more vitamin D.
100-110 cal/kg/24 hours
To maintain adequate growth, healthy full-term infants typ
CBC (?anemia, infection?)Urinalysis (?Renal tubular acidosis, hematuria, UTI, etc.)BUN/Cr (?renal failure)
If pt is present
≥ 60 mg/dL
Sweat chloride ____is most consistent with cystic fibrosi
Autosomal recessive(For an infant to have the disease, EITHER both parents must be heterozygote carriers of the mutant allele OR one parent is homozygous and one parent is heterozygous)
For parents who are both heterozygous, each child of this couple will have a 25% chance of having CF, a 25% chance of being unaffected, and a 50% chance of being a carrier like the parents. For a homozygous and heterozygous couple, each child will have a 50% chance of being affected and a 50% chance of being heterozygous.
Inheritance pattern of CF.
Trypsinogen test (IRT - Immunoreactive trypsionogen)
Note: Infants without CF may also have elevated IRT levels, however, so confirmatory testing is done either by performing a genotype for the most common CF mutations or by repeating the IRT.
Screening test for CF.
This infant is likely not consuming adequate calories to grow. The mother or primary caregiver may neglect proper feeding of the infant because of preoccupation with the demands or care of others, her own emotional problems, substance abuse, lack of knowledge about proper feeding, or lack of understanding of the infant’s needs. It is also important to assess the mother for post-partum depression. Standardized screening tools, such as the Edinburgh, are used routinely in pediatric office settings for this purpose.
If it was CHF,child would have signs such as:tiring with feeds, sweating, or tachypnea, tachycardia, or hepatomegaly.
A 4-week-old infant presents to clinic for a well child che
Inadequate caloric intake is correct because it is the most common cause of FTT.
Furthermore, we have reason to believe that this particular infant is not receiving adequate calories. Breastfed infants should eat every two to three hours until 3 months of age, whereas this infant eats every four hours and shares the milk supply with her twin. Twins can thrive on exclusive breastfeeding, but it requires that the mother consume extra fluids and calories and ensure that both twins receive adequate calories.
An 8-week-old infant is brought to the clinic for a health m
Sweat chloride testThe patient’s loose stool is concerning for malabsorption. This occurs in patients with cystic fibrosis due to their impaired pancreatic exocrine function. Given the stool history in the face of failure to thrive, a sweat chloride test would be indicated at this time. Cystic fibrosis should still be suspected in the child who has a normal newborn screen. States differ in the type of test offered to screen for cystic fibrosis, and although great strides have been made in newborn detection, methods are not 100% sensitive.
A 6-week-old is brought into clinic by his mother for poor
B. The mutation in CFTR gene results in defective salt balance. CF is caused by mutations in a single large gene on chromosome 7 that encodes the cystic fibrosis transmembrane conductance regulator (CFTR) protein. Clinical disease requires disease-causing mutations in both copies of the CFTR gene.
A 6-month-old infant is referred to the pulmonology clinic
D. CF causes exocrine pancreatic insufficiency and ultimately results in fat malabsorption. This causes frequent loose stools in infancy and progresses to foul-smelling and greasy stools in childhood.
A two-week-old infant presents to the clinic to follow-up o
Vitamin K injection, Hepatitis B vaccine and erythromycin ophthalmic ointment.
What 3 things do babies recieve after birth?
Hypotonia (most consistent finding in infants with Down syndrome)Upslanting palpebral fissuresFlattened midfaceEpicanthal foldsRedundant skin on back of neck (nuchal skin)Small ears (usually less than 34 mm at maximum dimension in a term infant
Additional common physical findings are small brachycephalic head, Brushfield spots, small shaped mouth, single transverse palmar crease, short fifth finger with clinodactyly, and wide spacing and a deep plantar groove between the first and second toes.
Name 6 common features od
Lymphocyte karyotype
What is the standard lab dx for Down Syndrome?
No.
Is consanguinity a risk factor for Down Syndrome?
Hypothyroidism
Select one:Down Syndrome is associated with hypo/hyperthyro
Amniocentesis and chromosome analysis of amniotic fluid cells
and
Chorionic villus sampling (CVS) and chromosome analysis of CVS tissue
What are the prenatal diagnostic tests for Down Syndrome?
Fragile X syndrome
What is themost common familial cause of intellectual dis
Respiratory rate:23–39 breaths/minute
Oxygen saturation:> 95%
Heart rate:120–180 beats/minute (mean 150)
Blood pressure:90% at 100/65 mmHg, 50% at 85/50 mmHg
Normal vitals for a 2-month-old.
The etiology of infant colic is unknown.
The crying typically starts after 2 weeks of age, peaks at 6 weeks, and gradually lessens by age 3 or 4 months.
The infant eats normally and has normal growth.
The crying can create feelings of rejection, frustration, and anxiety in caregivers.
Timeline of infant colic (eg. onset, peak, resolution)
Cardiac:Congenital heart disease (eg. Tet spell), arrhythmia (brady 2^ to congenital heart block or long QT syndrome)Resp: RSV infection, pertussis, LRI (pneumonia)GI: GERD, swallowing abrnomalitiy, tracheoesophageal fistulaCNS:Reflexive breath holding, increased ICPSystemic: Sepsis, inborn errors of metabolism, toxins, CO
Approach to apnea in infants (by system)
The most common respiratory cause of apnea is respiratory syncytial virus (RSV) infection.
Premature infants and infants younger than 2 months are at highest risk for apnea with RSV.
Most common respiratory cause of apnea?
Brief, resolved unexplained event (dx of exclusion).
Defined as an event occurring in an infant younger than 1 year when the observer reports a sudden, brief, and now-resolved episode that includes one or more of the following: * cyanosis or pallor * absent, decreased, or irregular breathing * marked change in tone (hyper- or hypotonia) * altered level of responsiveness.
What is a BRUE?
Age 6 months to 6 years
At what age to breath-holding spells occur?
Congenital Dermal Melanocytoses
Flat birthmarks that can sometimes be confused with bruising; more common in babies with darker skin pigmentation, but still seen in infants with lighter complexions
More appropriate name for Mongolian Spots?
A score below 8 means the infant is severely impaired and in coma.
An Infant Glasgow Coma Scale below what indicates that the
- Fractures or injuries that are inconsistent with reported mechanism of injury and/or the developmental stage or abilities of the child.
- Multiple fractures or injuries at different stages of healing
- Fracture of the femur or tibia in a non-walking child. Note that “Toddler’s fracture” is a common injury, typically to the tibia, in young walking children. Toddler’s fracture is not a sign of abuse.
- Posterior rib fractures, which are frequently associated with shaken baby syndrome due to squeezing of the thorax by the perpetrator’s hands during shaking.
- Skull fracture in an infantis also very suspicious for abuse. In these cases, it is very important to discern if the mechanism of injury reported by the parent or caretaker is consistent with the injury seen. Involvement of a pediatric radiologist skilled in interpreting these films can be critical.
Name 5skeletal survey findings that raise suspicion for a
MRI is less sensitive for an early bleed than CT;head CT is highly sensitive for an intracranial bleed, such as a subdural hematoma
Which is more sensitive for an early bleed: CT or MRI?
Vasovagal syncopeHypoglycemiaDehydrationSeizureHeat stroke
Name 5 causes of syncope.
Syncope is defined as a transient, usually brief, loss of consciousness and postural tone that results from inadequate cerebral perfusion.
Syncope is typically self-limited with unconsciousness for less than 1 minute, followed by gradual return of cerebral perfusion and awakening.
Define syncope.
-Duration of sx-Time of the day-Last meal-Wt changes-Activities leading up to the event-Drugs/meds-Associated sx:
- Palpitations, CP, headache, SOB, N/V, diaphoresis, visual changes, hearing changes
What are the critical qs to ask in a hx for syncope?
ECG
What must you order in a patient with syncope?
WPWLong-QT syndrome
Name two
Hypertrophic cardiomyopathy (HCM)
The most common cause of sudden cardiac death.
EchocardiogramECG is not appropriate as 10% of folks with HCM have normal findings.
Which test is required to rule out HCM?
Left ventricular hypertrophy and/or ST/T wave changes indicative of repolarization abnormalities.
ECG findings associated with HCM.
MSKPrecordial catch syndromeis the most common cause of chest pain in adolescents and is thought to be a form of musculoskeletal pain of unknown etiology. It is a benign condition characterized by sudden, sporadic onset of sharp pain, usually along the left sternal border, which is often exacerbated with deep inspiration. These pains are brief, lasting seconds to a few minutes, and resolve spontaneously. The pain can often be “broken” with a forced deep inspiration. It is often not associated with exercise.
What is the most common cause of chest pain in an adolesce
EBV serologies
The patient’s symptoms are suggestive of infectious mononucleosis. These include complaints of low-grade fever and malaise and findings of cervical lymphadenopathy and pharyngeal exudate. If testing is positive, the patient should be restricted from strenuous activity or contact sports during his illness due to the risk of splenic rupture
John is a 17-year-old presenting today for a pre-participat
Prolonged QT syndrome can cause syncopal episodes in late childhood or adolescence. QT intervals are elongated on ECG and lead to arrhythmias, like ventricular fibrillation. This condition is often associated with other abnormalities, including severe congenital sensorineural deafness.
A 17-year-old girl presents for a sports pre-participation
ECG and referral to cardiology.
Referral to cardiology is the absolute next best step! The combination of syncope with exertion and a family history of a young death is concerning for something like hypertrophic cardiomyopathy. Don’t be fooled about heat stroke. That is a positive family history for sudden death in a young person. This patient must be evaluated by cardiology, even if you don’t hear a cardiac murmur!
A 16-year-old boy presents to your office requesting cleara
Give fluids and recheck her vital signs
A 16-year-old previously healthy girl comes to the Pediatri
Reassurance
Based on the history, and assuming your physical exam is unremarkable, this sounds most suggestive of precordial catch syndrome, the most common cause of chest pain in an adolescent. No further workup is needed.
Claire is a 16-year-old girl who presents for birth control
Penicillin(Amoxicillin is generally used to treat Group A Strep in young children since it is more palatable)
The treatment of choice for Group A Strep pharyngitis
Macule
Flat, circumscribed discoloration < 1 cm.
Flat, circumscribed discoloration < 1 cm (> 1 cm is a patch)
Macule
Group A Streptococcus infection
Scarlet fever is caused by what
“Warm CREAM”Fever for at least 5 days+Conjunctivitis (non-purluent)RashErythema & swellingof the palms/solesAdenoapthy (cervical, often unilateral)Mucous membranes - dry and red; “strawberry tongue”
Name 6 signs/sx of Kawasaki disease (a vasculitis).
A rash that typically starts on the ankles/wrists and progresses centrally; also may not have a rash.
Rocky Mountain spotted fever (RMSF) is associated with wha
Measles
What is associated with the following:After a prodrome of
Erythema Infectiosum(Viral infection (parvovirus B19))
What is associated with the following:
Group A strep pharyngitisKawasaki diseaseToxic Shock Syndrome
This finding can also be seen in infectious mononucleosis, but it is usually in the presence of a concomitant streptococcal pharyngitis.
Name 3 conditions have been associated with a finding of a
ASAHigh-dose initially (four doses)Low dose followingdefervescenceDiscontinued 6-8 weeks later if no coronary artery changes seen
IVIG (Intravenous immune globulin)Asingle dose of 2g/kg over 10-12 hrs
Treatment for Kawasaki Disease
This presentation is consistent with infection by cocksackie A, an enterovirus. This is commonly known as hand, foot, and mouth disease (HFMD).
Following an incubation period of three to five days, patients have fever, tender vesicles on their hands and feet, and oral ulcers. Sometimes the rash also occurs on the buttocks and the genitals. The infection resolves spontaneously within three days, and is spread from person to person via saliva, fluid from the vesicles, stool, or nasal discharge.
A 5-year-old girl, previously healthy, presents with an ery
he constellation of symptoms described suggests Kawasaki disease. The other two classic signs not mentioned are erythematous tongue (“strawberry tongue”), and erythema/edema of the extremities.
A 2-year-old girl presents to the urgent care clinic with a
Kawasaki disease (KD)
A 3-year-old boy presents with fever to 103 F for the past
Rapid strep test with back-up culture if negative.
A 5-year-old boy comes to the clinic with a chief complaint
Echocardiogram to look for coronary artery aneurysm
A 3-year old girl comes to the clinic with a chief complain
Viral bronchiolitisAsthmaForeign body aspirationGERD
Name 4 causes of wheezing in infants and toddlers.
2-5 years old
In which age is croup moust common?
infiltration of inflammatory cells into the airway mucosa, mucus hypersecretion, and mucosal edema, accompanied by bronchoconstriction.
Asthma is characterized by …
400U of Vitamin D daily soon after birth; up to 12 months of age
Babies who are exclusively or partially breastfed should r
- Young infants cannot digest cow’s milk as completely or easily as they digest breast milk or formula.
- Cow’s milk contains high concentrations of protein and minerals, which can stress a newborn’s immature kidneys.
- Cow’s milk lacks iron, vitamin C, and other nutrients that infants need.
- Cow’s milk can irritate the lining of the stomach and intestine, leading to blood loss in the stool.
- Cow’s milk does not contain the optimal types of fat for growing infants.
3 reasons why cows milk is inappropriate to feed a baby l
Infants born at >37 weeks gestational age require 100 to 120 kcal/kg/day. Average daily weight gain for term infants is 20 to 30 grams.
Infants born at >37 weeks gestational age require _____ kc
Present at birth, disappears by age 4 months.
Used to detect peripheral problems such as congenital MSK abnormalities, or neural plexus injuries.
When does the Moro reflex disappear?What is it used to de
Seborrheic dermatitis
Name this rash:
This reflex must disappear before the infant can begin grasping objects voluntarily.
This reflex persists until 2-3 months of age.
When does palmar grasp disappear?
Infant dorsiflexes the big toe and fans the other toes when examiner strokes the lateral aspect of the foot’s plantar surface.This reflex is normal in children up to 2 years of age.
Babinski Response