DECK 3 - BODY WATER MATH Flashcards
What percent of body weight is water?
45-65%
What percent of newborns, 1 year old, adult male, adult female, water?
Newborn: 75% water. 1 year: 65%. Adult male: 60% Adult female: 55%
8.8lb newborn has the same amount of water as ____
a 2 liter bottle
pediatric flow rate? maintenance
4ml/kg/hr under 10. add additional 2ml/kg for next 10 up to 20, add 1ml/kg for each kg over 20.
Pediatric flow rate for 8kg?
8x4= 32ml/hr
Pediatric flow rate for 16kg?
10(4) + 6(2) = 40+12 = 52ml/hr
Pediatric flow rate for 23kg?
10(4) + 10(2) + 3(1) = 40+20+3 = 63ml/hr
what is “total body water?” TBW
total amount of water in the body - 45-65% of weight
About what percent of the body is water?
45-65% of total weight. Let’s just say ish
How much does a liter of water weigh?
1 liter of water weighs 1kg
how much water weighs 1kg?
1 liter of water weighs 1kg
How much does a 2-liter of Mountain Dew weigh?
2 kg
How can you change POUND to KG?
take half then subtract 10% of that half. Ex 248lbs> 124-12.4= 122.
EXAMPLE- 183 pounds to kg:
round to 180. Half is 90, tenth of that 9. 90-9=81. About 80kg
EXAMPLE- round 65 pounds to
round to 66, half is 33 a tenth of that about 3, 33-3 is 30kg
EXAMPLE- ROUND 266 pounds to KG
half is 133- 13 is 120kg
what is Intracellular Fluid
ICF- inside of the cells
what is Extracellular Fluid
ECF- outside of the cells (must be between them or in the vascular system)
what is Intravascuar Fluid
inside the veins
what is Interstitial Fluid
in between cells, but not in veins.
what is ICF
intracellular fluid - water in the cells
what is ECF
extracellular fluid- water outside the cells: in the veins and interstitial
What percent of TBW is in ICF? (total body water in intercellular space?)
two-thirds of the water is in the cells (twice as much as ECF)
What percent of TBW is in ECF? (total body water in extracellular space?)
one-third of the water is outside of the cells (interstitial and intravascular)
What percent of ECF is interstitial?
3/4 of the ECF is outside of the veins and outside cells. (three times more than intravascular)
What percent of ECF is intravascular?
1/4 of the ECF is inside veins. The smalles portion.
831: for every 12 liters of water, how many are ICF vs interstitial vs intravascular?
8:3:1. There are 8 liters in the cells for every 3 liters interstitial and every 1 liter intravascular. (so four ECF)
how big is a milliliter?
1 cc : 1cm x 1cm x 1cm
How big is a cubic centimeter? 1 cc?
1 ml.
How much does a mililliter of water weigh?
1 g
How much does a liter of water weigh?
1 kg
How much does a cc of water weigh?
1 g
Compare 60, 20, 15 and 10 drop factors.
The larger numbers have smaller sized drops. 60 tiny drops to fill the cube, 20 medium drops fill, 10 big drops fill it.
What is a drop factor?
How many drops it takes to fill a cubic centimeter. Given in DROPS/ML or ggt/ml
