Albert #1 Flashcards
Why is body surface area important in peds?
It parallels metabolic rate
Weight difference of PEDS?
1/21 of adult
Surface area difference of PEDS?
1/9 adult
Length difference if PEDS
1/3 adult
What are some upper airway difference with PEDS?
- Small mouth
- Large tongue
- Narrow epiglottis
Where does the airway start in PEDS?
C3-4
What is the narrowest part of a PEDS airway?
cricoid cartilage (funnel shaped)
Unique about peds cords?
the slope
Peds ribs differences?
- More horizontal
- Less mechanical
- more cartilage = more pliable
Peds have a higher portion of _______ muscles vs. ________ muscles.
- Type 2 (fatigue)
- Type 1 (endurance)
What is significant about large head size in peds.
Greater heat loss
Additional flexion of head in PEDS __________ of intubation
increases difficuty
50% of airway resistance in PEDS comes from where?
Nose
Respiratory rate of peds is ____ and O2 consumpton is ______ and tidal volume is _______ of an adult.
3X
2-3X
Same
Peds have higher ______ and _______ volumes.
Residual
Closing
Fetal HgB is _____ at birth and gone by ____ months.
80%
6
What is the significance of fetal HgB?
- Higher affinity for O2
- Less is released at tissues.
What affect does does hypoxia have peds?
Decreases RR and may cause apnea
Why is edema more concerning in PEDS?
You get the same amount of edema, but start with smaller openings.
Hypoxia and acidosis can cause what?
Return of Right to left shunt at the atrium (foramen ovale)
What does racimic epi do?
Shrinks the inflammed mucosa, allowing for more air passage
Fetal cardiac muscle is ____ contractile compared to _____ in adults.
30%
60%
Lower contractile mass results in what?
Lower compliance
Only way to increase CO in peds is to increase what?
HR
