fluids part 2 Flashcards
(35 cards)
how much you give depends on what 5 things
rehydration maintenance ongoing fluid loss routine Sx shock
to correct body water lost due to dehydration
rehydration
to replace body water lost due to normal body functions
maintenance
to replace body water lost through V/D
ongoing fluid losses
to compensate for vasodilation and increased insensible fluid loss
routine surgery
cannot measure -sweat, ventilation, mm evaporation
insensible loss
can measure (urine/feces)
sensible loss
to compensate for blood loss or and extreme drop in BP
shock
3 factors play a key role to determine TFN
rehydration, maintenance, specific loss calculation
where to perform skin turgor
side of neck.
to determine the TFN…
the 3 roles are added together
based on the estimated % of dehydration
rehydration
dehydration is determined by
skin turgor
CRT
pulse rate and quality
rehydration calculation
estimated % dehydration X pt. weight in kg = deficit (L)
how many ml make up 1 liter
1000
urine output per hour
1-2 ml/kg
common value used for maintenance. adult vs pediatric
adult- 50 ml/kg/day
pediatric- 110 ml/kg/day
add 10% to daily maintenance, if…
pyrexic
fluid losses due to vomit
1 ml/lb per episode
fluid losses due to PU
1 lb of urine= 500 ml
fluid losses due to D+
estimate by sight- use towel
TFN for 24 hours includes adding…
maintenance, ALL losses and deficit.
ongoing fluid losses is an estimation, you monitor
quantity and frequency of episodes
standard surgical fluid infusion rate
5-10 ml/kg/hr- use lowest unless told