Exam 1: growth&development, preop eval, gen approach Flashcards
what is a question we always ask about baby in preop
-term/how many weeks it was born
-troubles after birth
-problems with pregnancy
what is definition of pre-term infant
<37 weeks
what is definition of term infant
37-40 wks
what is definition of post term infant
> 42 weeks
what is considered extremely low birth weight
<1000g
what is considered very low birth weight
<1500 g
what is considered low birth weight
<2500 g
what is premature
<37 weeks
what are anesthesia concerns with premature babies
airway control
fluid management
temperature regulation
retinopathy of prematurity
apnea of prematurity
<60 weeks PCA highest incidence of post anesthetic complications
what patient has the highest incidence of post anesthetic complications
<60 weeks PCA
what is definition of small for gestational age
<10% for gestational age at birth
what is a cause of small for gestational age
chronic placental insufficiency
chromosomal abnormalities
mother:
-smoking
-DM
-chronic disease
how can we prep the OR for small for gestational age/ all pediatric patient
warm room, warm them throughout case
what is a common hematology issue with small for gestational age
polycythemia leading to hyperviscosity syndrome
how do we manage hyper-viscosity syndrome intraop
maintain or slightly elevate BP
SGA/LGA issues
what is definition of LGA infant
> 90% for gestational age
what are common issues with LGA infants
birth injuries
hypoglycemia
hypocalcemia
difficult intubation/IV sticks
what are issues with SGA infants (chart)
congenital anomalies
chromosomal abnormalities
chronic intrauterine infection
heat loss
asphyxia
metabolic abnormalities
hypoglycemia
hypocalcemia
polycythemia
hyperbilirubinemia
what are issues with LGA infants (chart)
birth injuries
asphyxia
meconium aspiration
metabolic abnormalities
hypoglycemia
hypocalcemia
polycythemia
hyperbilirubinemia
what are common birth injuries with LGA infant
brachial
phrenic nerve
fractured clavicle
what is the most sensitive indicators of a babies well being
weight
what issues can cause changes in babies weight
CHF
endocrine
malignancy
infection
malabsorption
what issues can we find through head circumfrence
severe malnutrition
hydrocephalus
what can cause a sunken fontanelle
fluid status changes
hemorrhage, fluid loss, dehydration
what three measurements do we use to assess baby
weight
length
head circumference
how does newborn weight change in first week after birth
decrease by 10%
how do you calculate length in cm using age
(age in years x 6) + 77
by 6 month an infants weight is _______x
2
by 1 year an infants weight is __x
3
when does a baby regain its weight after its initial loss
2nd week
30g/day then
12g/day 1st year
what is the rule of 10s for males
10 lbs per year until 16
what is the rule of 10s for females
10 lbs a year until 12
how much weight does a preterm infant lose in first week
15% then gain it back slower than term
T/F SGA infants lose more weight than others
F, dont lose weight, gain weight in first week
preop screening chart
what are preop of screenings for airway
history of difficult airway, adjuncts for ventilation and intubation
what are preop of screenings for cardiovascular: murmur with pathologic findings
preop echo
what are preop of screenings for History of syncope or poor functional capacity:
preop ECG, consider preop echo and cardiology eval
what are preop of screenings for asthma
preop albuterol if not well controlled
delay elective for poorly controlled
stress dose steroid if prolonged steroid exposure (>7 days) in last 12 months
what are preop of screenings for cystic fibrosis
V/Q mismatch common,
preop oxygen sat,
bronchial hyper reactivity,
evaluate recent CXR and PFTs,
Echo if pulm htn suspected\may have liver disease,
total bili,
INR,
albumin
may have renal insufficiency from aminoglycosides
what are preop of screenings for severe OSA
overnight observation
what are preop of screenings for seizures
continue meds day of sx
AED (antiepileptic drug) interactions with NMB blockade
AED induced metabolic acidosis
what are preop of screenings for ADHD
continue meds day of sx, consider alpha 2 agonist premedication
what are preop of screenings for CP?
constinue seizure and reflux medications day of sx
consider preop warming giving airway hypotonia
consider ICU or step down for recovery
what are preop of screenings for muscular dystrophy
preop ECG, ECHO, CPK, room air O2 sat, FVC
what are preop of screenings for gastointestinal
continue reflux medications preop
what are preop of screenings for renal
check K
anemia may be present: preop HCT
continue HTN meds preop
assess most recent dialysis
volume status
what are preop of screenings for sickle cell
preop admission
IV hydration
tranfuse if hb<10 g/dl
consider echo for pulm htn
what are preop of screenings for oncology
evaluate for lesion location
evaluate end organ dysfunction from chemo
what are preop of screenings for mitochondrial myopathy
avoid prolonged fasting,
use dextrose containing IVF at maintenence rate,
consider peop echo and ECG
consider anxiolytic premedications midazolam, dexmetomidine, or ketamine
what are preop of screenings for type 1 diabetes
HbA1C prior to day of sx
continue long acting insulin (glargine)
continue insulin pump without reduction
reduce evening NPH by 50%
check awakening and preop BS
what are preop of screenings for trauma/emergency
full stomach precautions
preop HCT
coagulation studies
C-spine films/precautions
what are preop of screenings for apnea of prematurity
require apnea-bradycardia monitoring post op (44-54 weeks PCA)
what are preop of screenings for prematurity, bronchopulmonary dysplasia, OLD
inflammation, smooth muscle hypertrophy, fibroproliferation
what are preop of screenings for prematurity, bronchopulmonary dysplasia, NEW
O2 dependence, >28 days old and disruption of lung growth
what are preop of screenings for prematurity, subglottic stenosis
prolonged intubation, stridor may be present
what are preop of screenings for prematurity, airway
predict difficult airway
mucopolysaccharoidosis
pierre robin
treachear collins
goldernhar
what are preop of screenings for prematurity, others
intraventricular hmmg, hypoglycemia
how do we calculate age for premature infants
Post-Conceptual Age = gestational age + post-maternal age
u: How do we differentiate a benign murmur vs congenital pathology?
Functional capacity history
-can they play/run
-cyanosis/poor activity
what congenital issues require cardiac consult
williams
noonan
trisomy 21
turner
marfan
how can the CRNA prevent subacute bacterial endocarditis
preop abx
amoxicillin or clindamycin 60 min before dental case
how can we distinguish an innocent murmur
*Still’s: left lower sternal border and may radiate to the base of the heart. Heard supine and diminished when sitting
how can we distinguish a pathological murmur
*Congenital Disease: pansystolic, Grade 3 or above, Left upper sternal border, harsh, abnormal 2nd heart sound, early or midsystolic click
*Diastolic murmur
what volatile do we avoid in asthma
des
if a patients asthma is not well controlled and asymptomatic, what do we do
proceed with anesthetic after short- acting beat agonists
T/F a patient with asthma can have surgery with minimal risk
T
if a patients asthma is well controlled and they have an expiratory wheese what do we do
if expiratory wheeze is resolved with SABA, proceed with sx
if a patient has poorly controlled asthma what do we do
consider reschedule
preop asthma care
controlled vs not well controlled vs poorly controlled chart
what are risk factors for URI
intubation < 5 years
reactive airway disease
paternal smoking
premature
airway sx
copious secretions
nasal congestions
a patient has moderat to severe URI with additional URI risk factors, what do you do
postpone for 2 weeks
what can happen when a patient with URI is anesthetized
laryngospasm
bronchospasm
oxygen desaturation
severe coughing
how do we manage autism patient
minimize stimulation
maximize routine
preop oral precedex, clonidine, ketamine, versed- mix with juice
how do we manage ADHD patient
premedicate with versed or alpha 2 agonist
continue meds
stimulants can cause more tachy with ephedrine
how do we manage seizures
ID baseline sz
continue AEDs day of surgery
oral or IV midazolam
what medication do we avoid in Cerebral palsy
Versed-airway obstruction
what are cerebral palsy patients at risk for
seizures
reflux
visual dysfunction
cognitive dysfunction
hypo/hyperthemia
airway obstruction
what are s/s cerebral palsy
spasticity, dystonia, ataxia
what heart issue is common with duchene and becker muscular dystrophy
cardiomyopathy (do preop TTE, EKG)
what muscular dystrophy may be difficult to intubate
duchenne
what resp test might be done preop for duchene and becker muscular dystrophy
proep PFC (FVC)
if FVC is <50% what is risk
increased risk of respiratory complications
if FVC is <30% what is risk
severe risk of postop resp complications
what do we treat hemophilia A with
recombinant factor 8
what do we treat hemophilia B with
recombinant factor 9
what do we treat von willebrands with
DDAVP
Humate
what do stressors induce in mitochondrial myopathy
metabolic acidosis
what are triggers for mitochondrial myopathy
prolonged fasting
hypoglycemia
hypothermia
prolonged tourniquets
hypovolemia
NV
what do we premedicate mitochondrial myopathy patients with
versed and alpha 2 agonists
what do we do preop of mitochondrial myopathy patients
EKG
echo
what medications are okay to take day of sx
AntiEpileptic Drugs
asthma medications
GERD meds
what medications do we hold for sx
anticoagulants, ACEI, ARB
T/F stop BB intra op
F, continue
what are most common cause of anaphylaxis intraop
abx and NMBs
how do we pretreat allergies
benadryl
pepcin
decadron
how do we treat anaphylaxis
benedryl
pepcin
decadron
epinephrine
who is at risk for latex allergy
Children with spina bifida
He of multiple surgeries
meningomyelocele