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Fundamentals of Nursing Exam 3: Chapter 41 Part 1

Nursing24 CardsCreated 4 months ago

A deck of 25 flashcards covering key concepts related to total body water, electrolytes, and dehydration from Chapter 41 Part 1 of the Fundamentals of Nursing Exam.

What is the percentage of total body water that is typically between 50% and 60% of body weight?

50%; 60%
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Key Terms

Term
Definition
What is the percentage of total body water that is typically between 50% and 60% of body weight?
50%; 60%
What does ICF stand for?
ICF stands for Intracellular Fluid.
What percentage of ICF is made up of water?
70%
What does ECF stand for?
ECF stands for Extracellular Fluid.
What percentage of ECF is made up of water, and what fluids does it include?
ECF makes up 30% and includes intravascular and interstitial fluids.
What is the normal range for sodium (Na) electrolytes?
135-145 mEq/L

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TermDefinition
What is the percentage of total body water that is typically between 50% and 60% of body weight?
50%; 60%
What does ICF stand for?
ICF stands for Intracellular Fluid.
What percentage of ICF is made up of water?
70%
What does ECF stand for?
ECF stands for Extracellular Fluid.
What percentage of ECF is made up of water, and what fluids does it include?
ECF makes up 30% and includes intravascular and interstitial fluids.
What is the normal range for sodium (Na) electrolytes?
135-145 mEq/L
What is the normal range for potassium (K)?
3.5-5 mEq/L
What is the normal range for calcium (Ca)?
8.6-10.2 mg/dL
What is the normal range for magnesium (Mg)?
1.3-2.3 mEq/L
Fluid volume deficit can be either a deficit of electrolytes or a deficit of distribution. What is the term for a deficit of distribution?
Third-space fluid shift
What is hypovolemia?
Hypovolemia is a deficiency in the amount of water and electrolytes in ECF with near-normal water/electrolyte proportions.
What is third-space fluid shift?
Third-space fluid shift is the distributional shift of body fluids into potential body spaces.
What is dehydration?
Dehydration is decreased volume of water and electrolyte change.
What type of dehydration is indicated by water loss equal to sodium loss?
Isotonic dehydration
What are causes of isotonic dehydration?
Vomiting and diarrhea
What is used to diagnose isotonic dehydration?
A CBC (complete blood count) is used for isotonic dehydration.
What are the expected sodium levels (mEq/L) for isotonic dehydration?
130-150 mEq/L
What type of dehydration is indicated by more sodium inside the cells than outside, with fluid being pushed into the cells?
Hyponatremic dehydration
What are causes of hyponatremic dehydration?
Severe, prolonged vomiting and diarrhea, renal disease, burns, diluted formula, iv hypo electrolyte fluids
What are the expected sodium (mEq/L) levels for hyponatremic dehydration?
<130 mEq/L
What is used to diagnose hyponatremic dehydration?
Chem 10 and serum specific gravity are used for hyponatremic dehydration.
What type of dehydration is indicated by more sodium outside the cells than inside?
Hypernatremic dehydration
What are causes of hypernatremic dehydration?
Diabetes insipidus, concentrated formula, and iv hyperelectrolyte fluids
What are the expected sodium (mEq/L) levels for hypernatremic dehydration?
>150 mEq/L