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A nurse is caring for a child with moderate dehydration.
What is the appropriate fluid deficit calculation for a child who weighs 12 kg?

Fluid deficit (in mL) = body weight (in kg) x 0.03.

Fluid deficit (in mL) = body weight (in kg) x 0.06.

Fluid deficit (in mL) = body weight (in kg) x 0.1.

Fluid deficit (in mL) = body weight (in kg) x 0.04.

Answer and Explanation

The Correct Answer is D

Choice A rationale:

Fluid deficit (in mL) = body weight (in kg) x 0.03.

Rationale: This calculation significantly underestimates the fluid deficit for a child with moderate dehydration.

Dehydration often requires more significant fluid replacement.

Choice B rationale:

Fluid deficit (in mL) = body weight (in kg) x 0.06.

Rationale: This calculation overestimates the fluid deficit for a child with moderate dehydration.

Using this formula would result in excessive fluid replacement, which can be harmful.

Choice C rationale:

Fluid deficit (in mL) = body weight (in kg) x 0.1.

Rationale: This calculation overestimates the fluid deficit for a child with moderate dehydration.

Using this formula would result in excessive fluid replacement, which can be harmful.

Choice D rationale:

Fluid deficit (in mL) = body weight (in kg) x 0.04.

Rationale: This is The correct answer.

The appropriate fluid deficit calculation for a child who weighs 12 kg with moderate dehydration is to multiply their body weight by 0.04.

For this child, it would be 12 kg x 0.04 = 480 mL.

This formula is a commonly used guideline to estimate fluid deficit in cases of dehydration.

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Correct Answer is A

Explanation

Choice A rationale:

“This fluid will help to increase your sodium levels which are currently too low.”.

The nurse should explain to the client that they are receiving Normal Saline (0.9% NaCl) to increase their sodium levels.

This is The correct choice because Normal Saline is a hypertonic solution containing 154 mEq/L of sodium and 154 mEq/L of chloride.

It is used in cases of hyponatremia to raise sodium levels.

Sodium is an essential electrolyte, and low levels can lead to symptoms such as weakness, confusion, and muscle cramps.

Choice B rationale:

“This fluid will help to decrease your sodium levels which are currently too high.”.

Normal Saline is a hypertonic solution that would not be used to lower sodium levels, as it would have the opposite effect and further elevate sodium levels.

Choice C rationale:

“This fluid will help to increase your potassium levels which are currently too low.”.

It is not used to increase potassium levels, and potassium replacement would require a different solution, such as potassium chloride.

Choice D rationale:

“This fluid will help to decrease your potassium levels which are currently too high.”.

Normal Saline does not address high potassium levels; it is used to address hyponatremia and dehydration by increasing sodium levels.

A. Total maintenance fluids = 1800 mL/day. B. Total maintenance fluids = 1200 mL/day. C. Total maintenance fluids = 1600 mL/day. D. Total maintenance fluids = 1400 mL/day.

Correct Answer is D

Explanation

The correct answer is Choice B: Total maintenance fluids = 1200 mL/day.

Choice A rationale:

This value exceeds the calculated requirement for a child weighing 18 kg using the Holliday-Segar method.

Choice B rationale:

The Holliday-Segar method calculates maintenance fluids based on weight as follows:

For the first 10 kg, the requirement is 100 mL/kg.
For the next 10 kg, the requirement is 50 mL/kg.

Thus, for a child weighing 18 kg:

First 10 kg: 10 kg x 100 mL/kg = 1000 mL
Next 8 kg: 8 kg x 50 mL/kg = 400 mL Total maintenance fluid requirement = 1000 mL + 400 mL = 1400 mL/day.

So, actually, the correct answer should be Choice D: 1400 mL/day.

Choice C rationale:

This value is higher than the requirement for 18 kg based on the Holliday-Segar method.

Choice D rationale:

This is the correct calculation based on the method described above: 1000 mL for the first 10 kg plus 400 mL for the next 8 kg totals 1400 mL/day.

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A nurse is caring for a child with moderate dehydration.What is the appropriate fluid deficit calculation for a child who weighs 12 kg?

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Naxlex Comprehensive Predictor Exams

Correct Answer is A

Explanation

A nurse is calculating maintenance fluids for a child who weighs 18 kg. According to the Holliday-Segar method, what would be the total maintenance fluid requirement for this child?

Correct Answer is D

Explanation

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A nurse is caring for a child with moderate dehydration.
What is the appropriate fluid deficit calculation for a child who weighs 12 kg?