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9 September, 13:59

a rough guide to fluid requirements based on body weight is 100mL/kg for the first 10kg of body weight, 50mL/kg for the next 10kg, and 20mL/kg for weight over 20kg. What volume of fluid per day is needed by a 55kg woman? give answer to 2 significant figures

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  1. 9 September, 15:47
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    Given, weight of the woman = 55 kg

    For the first 10 kg, fluid required is 100 mL/kg

    So for the first 10 kg volume of fluid required is 100 ml/kg x 10 kg = 1000 ml = 1 L

    For the second 10 kg, fluid required is 50 mL/kg

    So for the second 10 kg volume of fluid required is 50 ml/kg x 10 kg = 500 ml = 0.5 L

    For the remaining (55 kg - 20 kg) or 35 kg, fluid required is 20mL/kg

    Now for the the remaining 35 kg volume of fluid required is 20 ml/kg x 35 kg = 700 ml = 0.7 L

    The total volume of fluid per day required by a 55 kg woman = 1L + 0.5L + 0.7L = 2.2 L
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