Pediatric Preanesthetic Eval, Premed, Induction Flashcards
pediatric age that tolerates separation and inhalation and induction well
infants 6-10 months
(no predmed needed)
postop behaviors seen in children 6 months-6 years
postop nightmares, eating disturbances, bedwetting
what med reduces instance of postop nightmares, bedwetting, and eating disturbances in kirs 6 mo-6 years old?
midazolam
how does a previous surgery impact a 2-6 year old’s response to subsequent surgeries?
evidence says previous surgery helps with preop anxiety, but according to Lisa this doesn’t always translate to practice
why might sedation make preop experience worse in children > 6 years
may interfere with ability to cooperate and worsen overall expereince
adolescents - want to be in control, may dislike sedation
special considerations for kids with home monitoring/oxygen use
higher risk for postop obstruction, need overnight monitoring
family history we want to know about for a peds pt
- SIDS in family
- hx prolonged paralysis, MH
- genetic defects
- sickle cell, CF, MD, bleeding tendencies
- allergic reactions
- drug addiction
pediatric complications of smoking exposure
increased risk of asthma, ear infections, eczema, hay fever, dental caries
increased airway complications during induction & emergence
why are clear liquids encouraged 2-3 hours preop?
- less hypotension/ bradycardia
- helps with motility
- clear liquid ½ life is 15 minutes
can babies have breast milk 2 hours preop?
if not, how long do they have to wait?
no - increased lipid content causes delayed emptying
wait 4 hours
fasting guidelines for formula, milk, and solids
6 hours
preop fasting guidelines for gum/candy
none after midnight - increases gastric secretions
(but also maybe no evidence that this is true)
fasting goals - pH and volume
pH > 2.5
volume < 0.4 mL/kg
fasting goals - pH and volume
pH > 2.5
volume < 0.4 mL/kg
pts at increased risk of hypoglycemia
- FTT
- debilitated
- receiving high glucose solutions preop
concerns of a preop URI
2-7x increased risk of respiratory complications (especially if < 1 year old)
- bronchospasm, laryngospasm
- hypoxemia
- atelectasis
- croup, stridor
when should surgery be postponed because of a URI?
- s/s lower respiratory involvement
- purulent rhinorrhea
- acute onset (vs. chronic)
- < 1 year old
- fever
if you cancel a case because of URI, when should it be rescheduled for?
bronchial reactivity can last 7 weeks - but practically, delay 2 weeks and surgery is ok as long as the kid is getting better
is it safe to anesthetize a mild URI for a short procedure without intubation?
yes - increased spasms and desats but no worse than without URI, no increased morbidity
difference in allergic rhinitis and URI
rhinitis has clear nasal drainage, no fever, and statistically not the same risks as URI
most recommended preop Hct
exceptions to this
> 25%
if between 2-4 months old or chronic renal dailure, lower value acceptable
how does chronic anemia affect the oxyhgb dissociation curve?
- increased 2,3-DPG
- increased O2 extraction
- increased CO
RIGHT SHIFT
should you transfuse preop to get a Hct of 30?
no - unnecessary risk of blood-borne disease transmission
when should you consider postponing surgery with a fever
with symptoms of acute onset - rhinitis, sore throat, earache, dehydration
interventions for pt with a slight fever and is asymptomatic
procede with anesthesia
reduce fever to decrease O2 demand (tylenol, motrin)
how do inhalation agents affect fever
blunt febrile response
(whatever that means)
when should preop sickle cell screening be done
if results unknown and HbSC in family, unknown status with low hct
what test is done to determine severity of HbSC if preop screen is positive
hemoglobin electrophoresis
preop considerations for sickle cell patients
should be admitted overnight for IVF, potential transfusion prior to surgery
transfusion goal for sickle cell pt
up to hgb 10/hct 30
T/F - a sickle cell screen can be positive with sickle cell trait
true - hemoglobin electrophoresis determines severity of screen positive
useful preop meds for kids with developmental delays
PO or IM “cocktail” of ketamine and glycopyrrolate
PO or nasal versed
preop considerations for diabetic kiddos
- consult endocrinology for intraop blood sugar plan
- schedule for first case of day
- common: preop IV access, 5% glucose MIVF, ½ usual insulin dose