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How do you calculate maintenance fluids?

Jim Brown

How do you calculate maintenance fluids?

Formulas Used:

  1. For 0 – 10 kg = weight (kg) x 100 mL/kg/day.
  2. For 10-20 kg = 1000 mL + [weight (kg) x 50 ml/kg/day]
  3. For > 20 kg = 1500 mL + [weight (kg) x 20 ml/kg/day]

How do you work out child maintenance fluids?

Routine maintenance fluids for children are calculated by weight using the Holliday-Segar formula: 100 ml/kg/day for the first 10kg of weight. 50 ml/kg/day for the next 10kg of weight. 20 ml/kg/day for weight over 20kg.

How do you calculate 24 hour fluid requirements?

The 24-hour number is often divided into approximate hourly rates for convenience, leading to the “4-2-1” formula.

  1. 100 ml/kg/24-hours = 4 ml/kg/hr for the 1st 10 kg.
  2. 50 ml/kg/24-hours = 2 ml/kg/hr for the 2nd 10 kg.
  3. 20 ml/kg/24-hours = 1 ml/kg/hr for the remainder.

How to calculate infusion rate for maintenance fluid?

Total Maintenance Fluid: Infusion Rate: Formulas Used: For 0 – 10 kg = weight (kg) x 100 mL/kg/day. For 10-20 kg = 1000 mL + [weight (kg) x 50 ml/kg/day] For > 20 kg = 1500 mL + [weight (kg) x 20 ml/kg/day] Note: Infusion rate = total fluid volume per day ÷ 24 hour.

How to calculate the maintenance fluid rate for a child?

These are the two methods for calculating pediatric maintenance fluid rates, applied in the case of a child weighing 26 kg. 1) Daily volume formula: (100 mL for each of the first 10 kg) + (50 mL for each kg between 11 and 20) + (20 mL for each additional kg past 20 kg) = 1,000 mL + 500 mL + 120 mL = 1,620 mL.

How to calculate fluid loss over 24 hours?

• If the fluid lost is to be replaced over 24 hours, the maintenance requirement is added to the fluid deficit to work out the total amount to be given over a 24 hour period: •e.g. 1750mL + 2800mL = 4550mL over 24 hours

How much fluid is needed for IV maintenance?

Fluid Maintenance By 4 – 2 – 1 Rule: 3.5 – 10 kg: 4 mL/hr for each kg >10 – 20 kg: 4 mL/hr for each of the first 10 kg, then 2 mL/hr for each kg past 10 kg >20 – 65 kg: 60 mL/hr plus 1 mL/hr for each kg past 20 kg >65 kg: 105 mL/hr

How do you calculate maintenance fluids?

Jim Brown

How do you calculate maintenance fluids?

Formulas Used:

  1. For 0 – 10 kg = weight (kg) x 100 mL/kg/day.
  2. For 10-20 kg = 1000 mL + [weight (kg) x 50 ml/kg/day]
  3. For > 20 kg = 1500 mL + [weight (kg) x 20 ml/kg/day]

How do you calculate hourly fluid maintenance?

In anesthetic practice, this formula has been further simplified, with the hourly requirement referred to as the “4-2-1 rule” (4 mL/kg/hr for the first 10 kg of weight, 2 mL/kg/hr for the next 10 kg, and 1 mL/kg/hr for each kilogram thereafter.

How do you calculate maintenance fluids for adults?

Maintenance Fluid Rate is calculated based on weight.

  1. 4 mL / kg / hour for the first 10kg of body mass.
  2. 2 mL / kg / hour for the second 10kg of body mass (11kg – 20kg)
  3. 1 mL / kg / hour for any kilogram of body mass above 20kg (> 20kg)

How do you calculate IV fluids?

The formula to calculate how many hours will it take for the IV to complete before it runs out is: Time (hours) = Volume (mL) Drip Rate (mL/hour) . The volume of the fluid is 1 000 mL and the IV pump set at 62 mL/hour.

What is the formula for drug calculation?

A basic formula, solving for x, guides us in the setting up of an equation: D/H x Q = x, or Desired dose (amount) = ordered Dose amount/amount on Hand x Quantity.

What is the daily maintenance fluid requirement?

For infants 3.5 to 10 kg the daily fluid requirement is 100 mL/kg. For children 11-20 kg the daily fluid requirement is 1000 mL + 50 mL/kg for every kg over 10. For children >20 kg the daily fluid requirement is 1500 mL + 20 mL/kg for every kg over 20, up to a maximum of 2400 mL daily.

What is the daily fluid requirement?

The U.S. National Academies of Sciences, Engineering, and Medicine determined that an adequate daily fluid intake is: About 15.5 cups (3.7 liters) of fluids a day for men. About 11.5 cups (2.7 liters) of fluids a day for women.

What fluid should be given for dehydration?

For severe dehydration, start IV fluids immediately. If the patient can drink, give ORS by mouth while the IV drip is set up. Ringer’s lactate IV fluid is preferred. If not available, use normal saline or dextrose solution.

How to calculate maintenance fluids for 24 hours?

The rule for calculating maintenance fluids for a 24 hours period, is the 100/50/20 rule. IV administration of 100ml/kg for the first 10kg is given. Then 50ml/kg for the next 10kg and then 20ml/kg for every kg over 20. Once this has been figured, you divide the amount by 24 to get the hourly IV fluid flow rate.

How much fluid do you need per day?

Fluid Maintenance Requirement Questions Weight Range Required Daily Fluid 0-10 kg 100 mL per kg 10-20 kg 1,000 mL + 50 mL per each kg above 10 kg 20-70 kg 1,500 mL + 20 mL per each kg above 20 kg Over 70 kg 2,500 mL (adult requirement)

How much fluid is needed for IV maintenance?

Fluid Maintenance By 4 – 2 – 1 Rule: 3.5 – 10 kg: 4 mL/hr for each kg >10 – 20 kg: 4 mL/hr for each of the first 10 kg, then 2 mL/hr for each kg past 10 kg >20 – 65 kg: 60 mL/hr plus 1 mL/hr for each kg past 20 kg >65 kg: 105 mL/hr

How much maintenance fluid does a 25kg child need?

To calculate the hourly maintenance fluid requirements for a child weighing 25kg: 1,500ml (which is the 100ml x 10kg + 50ml x each kg over 10kg) + 100ml (20ml x each kg over 20 kg) = 1,600ml/24 hours.