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Discussion

Help with a oz to mil question please

The nurse calculates Mary's intake and output (I&O) for the shift. Mary has had 24 ounces of water, 8 ounces of apple juice, and three 4-ounce cartons of milk. She received 50 mL of IV fluids per hour for the last 12 hours and had a urinary output of 1200 mL, plus one episode of wetting the bed.

What is Mary's total intake for this shift?

I tried this problem and got 1901.2ml but it was wrong. I also tried 1902ml, 1901ml. Can anyone help explain to me what I did wrong and help me solve it? I have no idea what I could be doing wrong. The answer must be in milliliters.

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    • Featured Replies

    You're so close to the right answer. Write out what you did, and I will see if I can help you.

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    Approx how many mL are in one ounce?

    Then set up your list.

    24 oz x ____mL/oz=A mL

    3 x 4oz x ____mL/oz =B mL

    8oz x _____ mL/oz = C mL

    12h x 50mmL/hr = D mL

    Total intake = A + B + C + D

    You are close.

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    Since mL to oz is a whole number, I'm thinking maybe you used the incorrect conversion factor. Justbeachy is right on the money. What conversion factor are you using?

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    • Experts

    know what conversion factors they are using.....here are some site with common ones

    Medical Calculations and Conversions

    Health Care: Common Conversion Factors

    Weight

    1 kilogram (kg) = 2.2 pounds (lb) = 1000 g

    1 lb = 454 g = .454 kg = 16 oz

    kg x 2.2-5 = kg

    lb x 0.454 = kg

    1 oz = 28.349 g

    1 g = 1000 mg

    oz = 28.349 = g

    g x 0.935 = oz

    Liquids

    1 oz = 30 milliliters (ml)

    1 tbsp = 3 teaspoons (tsp) = 15 ml

    1 tsp = 5 ml

    2 tbsp = 1 fl oz

    4 tbsp = 1/4 c = 2 oz

    1 ml = 1 cc

    1 cup © = 8 fl. oz = 16 tablespoons (tbsp) = 1/2 pt

    2 c = 16 fl oz = 1 pt = 1/2 qt

    4 qt = 1 gal

    1 L = 1000 ml

    Length

    1 m = 3.281 ft = 39.37 in.

    in. x 25.4 = mm

    in. x 2.54 = cm

    mm x 0.0394 = in.

    cm x 0.394 = in.

    ft x 0.305 = m

    m x 3.281 = ft

    m x 1.094 = yd

    yd x 0.914 = m

    Volume

    US fl gal x 0.833 = UK gal

    US fl oz x 1.041 = UK fl oz

    US fl oz x 29.572 = ml

    l (litre) x 1.056 = US fl qt

    US fl qt x 0.947 = l (litre)

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    I use mnemonics to help me remember the more common conversion factors since I had problems keeping the numbers straight at first.

    30 monkeys laughed at 1 old zebra and if you eat 2 turkeys you are going to need 6 tums

    30 mL = 1 oz = 2 Tbsp = 6 tsp

    Since both turkeys and tums begin with t you might say it could be confusing, but turkeys are larger than a bunch of tums just like tablespoons are larger than teaspoons.

    Hope that helps

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    I use mnemonics to help me remember the more common conversion factors since I had problems keeping the numbers straight at first.

    30 monkeys laughed at 1 old zebra and if you eat 2 turkeys you are going to need 6 tums

    30 mL = 1 oz = 2 Tbsp = 6 tsp

    Since both turkeys and tums begin with t you might say it could be confusing, but turkeys are larger than a bunch of tums just like tablespoons are larger than teaspoons.

    Hope that helps

    I love mnemonics. Thanks for this!

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    What were you using as your conversion? You are very close to the correct answer.

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    What was the answer????

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    Don't muddy the waters, guys-the only formula you need to know for this particular answer is 30ml=1oz.

    Just 2 manipulations of that:

    ___ oz X 30 = ___ ml

    ___ ml / 30 = ___ oz

    Just a little proud of my middle-aged brain; I can still do those problems in my head lol.

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    1oz=30mL. 32oz water(32x30)=960mL plus 12oz apple juice(12x30)=360mL plus 4oz milk(4x30)=120x3 cartons=360mL for a total of 1680mL of oral fluids. 50mL x 12 =600mL IV fluids. so, 1680mL oral fluids plus 600mL of IV fluids equals 2280mL

    Answer 2280

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    I know this is an old post, but the answer is 1920.

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    I also got 1920 for the 12 hours shift

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