Hypoglycemia + Fluids Flashcards
Risk Factors for Hypoglycemia
Premature GDM IUGR/SGA LGA FAS
Day 0 fluid requirement
0 = 60-80ml/kg/day
Day 1 of life fluid requirement
1 = 80-100ml/kg/day
day 2 of life TFI
2 = 100-120ml/kg/day
day 3 of life TFI
120-140ml/kg/day
day 4 and over TFI
150ml/kg/day
Reasons for neonatal insensible water lose (IWL)
- Lower gestation - high BSA, and immature water permeable skin
- skin defects
- high body/ambient temp
- radiant warmer
- heat emitting phototherapy
- increased motor activity or crying
Decreasing insensible water lose in neonates
- double walled incubator or plastic heat shield
- increased ambient humidity
- plastic bag
- humidification of inspirated gas in CPAP or ventilator
- antenatal corticosteroids promote maturation of skin and kidneys
Assessing fluid/lyte status think:
History, assessment and lab work
urine output goal for neonates
1-3ml/kg/hr
Bolus does for neonates and rate of infusion
10ml/kg bolus immediately for shock, for dehydration 10ml/kg over 1 hour
Birthweight <1000g day 1 TFI and day 7 TFI
80-100 day 1
160 day 7
birthweight 1000-1500g TFI day 1 and day 7
day 1 = 80ml/kg/d
day 7 =150ml/kg/d
birth weight >1,500g day 1 and 7 TFI
day 1 = 60ml/kg/d
day 7 = 150mk/kg/d
Fluid choice first day of life
D10W without bytes
Neonatal hypoglycaemia defined as
<2.6 during the first 48 hours of life
Treatment for symptomatic hypoglycaemia in neonates
- D10W at 2ml/kg followed by 4ml/kg/hr infusion. target BGL >2.6mmol/L
Treatment of BGL in neonates >1.8 but <2.6
feed at 8ml/kg q2 hours
Three medications that might be used in NICU for neonatal hypoglycaemia
- glucagon
- diaxozide
- octerotide
Treatment for BGL <1.8 with or without symptoms
IV dextrose 2ml/kg bolus followed by infusion 4ml/kg/hr
When should neonates achieve a new set point for glucose
72-96 hours of life
3-4 days
RF for neonatal hypoglycaemia
- excessive insulin production (LGA, IDM)
- Low glycogen reserve (IUGR, SGA)
- Increased demand (critically ill)
- Maternal conditions (DM, preeclampsia, maternal BB use)
- newborn errors of metabolism, hepatic dysfunction
Glucose checks and timing in HIE
- measure glucose every 20-30 minutes after birth
- measure glucose every 30-60 minutes after correction
neonatal hypoglycaemia was detected in 16% of newborns with HIE
when does the 421 rule start
28days - 17 years
rule of 50 for D50
give 1cc/kg
50x1=50
rule of 50 for D25
Give 2cc/kg (25x2=50)
Rule of 50 for D10W
5cc/kg
10x5=50
rule of 50 for D5
Give 10cc/kg
5 x 10=50
glucose triangle
top = want (ie, 15) left = have (d10) right = need (d50)
calculate the differences then add those two volumes to the same syringe. kids are annoying
cross multiple to change dextrose concentration.
Example: d10 at TFI 140ml/kg/day to d15
- TFI with D10=140ml/kg/d
- multiple (d)10x140 = 1400
- divide 1400/15 = 93.3
- TFI with D15 = 93.3ml/kg/d