fluid therapy Flashcards
How much fluid input is ideal for a child
as much as they want
Breast milk / formula ≠fluid
How to calculate the fluid intake for a dehydrated / sick child?
- maintenance
- estimated deficit
- future losses (High fever +10%, Special: photo therapy in the NICU)
calculate maintence fluid plan
holliday -segar method
1-10 kgs: 100 mL/kg/day
11-20 kgs: 50 mL/kg/d
> 20 kgs:20 mL/kg/d
if 22kg :
( 1000 for first (10100) 10 kg,
(1050) 500 ,
2x20 (40) ) total 1450
What is the problem with holliday segar method
overestimates the need of a healthy child too!
doesn’t take into account that the sick child is inactive
Best way to monitor output from patient (Drains, urine) and input from fluids
also from weight of patient
signs of dehydration
mild dehydration value
3-5% of body weight
moderate dehydration level value
6-10% of body weight
severe dehydration value
9-15% of body weight
signs in mild dehydration
tongue - dry
fontanel- normal or sunken
sign of moderate dehydration
eyes sunken
UO=0.5-1 ml/kg/hr
tachycardia
severe dehydration signs
turgor decreased
cold skin
UO<0.5 ml/kg/hr
BP decreased
CRT>2 sec
lethargic behavior
ways of managing rehydration
Oral rehydration ( safer)
Parenteral rehydration
ORAL REHYDRATION
BOLUS how much is given
10 ml/kg
(give 5 ml/kg if they have cardiac di)
fluid overload
edema
crackles
distended JV
hepatosplenomegaly
increase WOB
what shouldnt be in bolus
extra electrolytes, sugar
give sugar ONLY incase of hypoglycemia
(sugar takes out fluid from intravascular space, glucose absorbed ; wont have normal conc. grad)
what can be given in bolus solution
balanced Crystalloids,
colloids(5% albumin)- stays in IV space; if someone in shock we want to increase IV volume
blood products - if anemic (RBC)
what is the only case where we give sugar in bolus ??
in hypoglycemia
(NOOOT to increase IV volume)
pH guided resusitation logarithm
maximum dose of glucose in peripheral/central line
12.5%
types of glucose solutions
hypotonic fluids+ 5% Gl
Balanced solutions + 5/10 %
5/10/20-25/40-50% glucose
electrolyte requirement of Na
3-5 mmol/kg/day
electrolyte requirement of K
2mmol/kg/day
electrolyte requirement of Chloride
2mmol/kg/day