Assignment 9.1: Dehydration Calculations Daily Maintenance Fluid Requirements:

Assignment 9.1: Dehydration Calculations
Daily Maintenance Fluid Requirements: Hockenberry Table 22-1
Daily Maintenance Fluid Requirements

Body Weight
Amount fluid per Day

1 to 10 kg
100 mL/kg

11 to 20 kg
1000 mL + 50 mL/kg for each kg > 10 kg

>20 kg
1500 mL + 20 mL/kg for each Kg > 20 kg

Calculate the mL/day and the IV rate (ml/hr)
Infant weights 6 kg
Toddler weighs 14 kg
Preschooler weighs 22 kg
School age child weighs 33 kg
Calculate IV fluid bolus for resuscitation: use NS or LR 10-20 mL/kg
Infant weighs 8 kg
Child weighs 20 kg
Practice questions: If order is for 400 mL over 15 minutes and the child weighs 20kg, how many mL/kg will the child receive?At what rate should the IV pump be set?

ORT (Oral Replacement Therapy for acute diarrhea)

Mild 5-6% give ORS 50 mL/kg within 4 hours
Moderate 7-9% give ORS 100 mL/kg within 4 hours
Severe ≥ 9% give Intravenous fluids (lactated Ringer solution), 40 ml/kg until pulse and state of consciousness return to normal; then 50-100 ml/kg or ORS

Calculate the replacement fluid needed for each child below:
15 kg child with moderate dehydration:Give _____ORS within next 4 hours
9 kg child with mild dehydration: Give ______ ORS within next 4 hoursThis 9 kg child has one diarrhea stool so add 10 mL/kg ORS within next hour.Additional volume to give_______mL ORS in next hour.

Expected Urinary Output by Age
Expected urine output
Infant: 2 mL/kg/hr
Child: 1 mL/kg/hr
Adolescent: 30 mL/hour or more
Calculate the expected urinary output for each child below:
A 5-year-old returns from PACU at noon. The child weighs 28 kg.The child is NPO with IV fluids running at 70mL/hr.The first void of 100 mL occurs at 1900.
What is the expected urine output for this child after 7 hours?
How many mL/kg/hr happened with this void?
Is this normal, above or below the expected urine output?
What nursing action, if any, should be taken?
Calculate the urine output for the shift: Use volume/weight/time formula
The urine output for a 12-hour shift 420 mL for a 10 kg toddler ________mL/kg/hr
The urine output for a 6-hour period 120 mL for a 15 kg preschooler ______ mL/kg/hr.
The urine output for a 5-hour period 1500 mL for a 35 kg child _______ mL/kg/hr.

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