Pediatrics Flashcards
What is correct gestational age?
age since conception
= GA+PNA
What is a premature neonate?
born <37 weeks gestational age
What is a full term baby?
37-41 weeks +28 days PNA
What is an infant, child, adolescent?
infant= 1m-1y
child 1-12y
Adolescent 12-18y
What is a Childs gastric pH? At what age does it make it about to adult?
higher=more basic
> 5
Due to a child (<5)’s stomach, how would absorption of a basic and acidic drug change?
acidic= less
basic= more
When a kid is <4 months how does their motility change?
gastric motility very slow= slower absorption or Tmax higher
normalizes at 4 months
Do kids have more or less topical absorption?
thing skin= increased
In regards to water do they have more or less than adults?
more body % water in babies
If more water how does this affect Vd?
higher Vd for hydrophilic drugs
Do babies have more or less albumin?
LESS= more unbound
What other factor of babies affects fraction unbound?
MORE endogenous products to displace drugs from albumin= more unbound
In regards to liver enzymes how is this different for kids?
less enzymes and increases as we age
When does kids reach adult GFR? When does rapid renal function increases happen?
8-12 months
first few weeks of life
Formula for estimating renal function in kids?
bedside Schwartz equation
Limitations of Schwartz equation?
if Sir rapidly changing, bad CKD, obese, malnourished, muscle wasting
What should a kid daily dose not exceed?
adult dose
What is the aliquot method?
make a larger volume and take a portion
EX: 5 mg/ml if need 3 mg you need 0.6 ml
What if a child throws up (not just a spit up) dose?
<30 min= dose again DO NOT REPEAT if vomit again
>30 do not repeat
Which form of tube feeding has less absorption?
NJ
What does number of lumens mean for IV access?
how many ‘holes’ in one IV line for drug compatibility
What is the formula method for fluids?
100 ml for first 10 kg +
50 ml for each additional kg between 11-20 +
20 ml for each additional kg over 20 kg
What is the 4/2/1 method for fluids?
4 ml/kg for first 10 kg +
2 ml/kg for kg 11-20 +
1 ml/kg for each additional kg above 20
Which fluid formula is for daily and hourly?
formula= daily
4/2/1= hourly