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.
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.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
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.
Correct Answer is D
Explanation
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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