Questions and Answers
What are the 7 lab values to monitor for dehydration?
Hematocrit, Serum Osmolality, Urine, BUN, Serum Creatinine, Serum Sodium, Serum Potassium, Serum Magnesium
What happens to these lab values that indicates dehydration?
If hematocrit, osmolality, specific gravity, creatinine, or BUN increase, then there is probable dehydration.
What are the hematocrit levels for men?
40 - 54
What are the hematocrit levels for women?
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What is the normal range for serum osmolality?
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What is the normal range for urine specific gravity?
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What is the normal range for BUN?
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What is the normal range for serum creatinine?
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What is the normal range for serum sodium?
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What is the normal range for serum potassium?
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What is the normal range for serum magnesium?
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Study Notes
Dehydration Lab Values
- Monitor seven critical lab values to assess dehydration: Hematocrit, Serum Osmolality, Urine specific gravity, BUN, Serum Creatinine, Serum Sodium, Serum Potassium, and Serum Magnesium.
- An increase in Hematocrit, Osmolality, specific gravity, creatinine, or BUN suggests probable dehydration.
- Dehydration may lead to hypernatremia (high sodium) or hyponatremia (low sodium).
- Potential electrolyte imbalances include hypokalemia (low potassium) and hypomagnesemia (low magnesium).
Hematocrit Levels
- Normal hematocrit range for men is 40% - 54%.
- Normal hematocrit range for women is 36% - 46%.
Serum Osmolality
- Normal serum osmolality ranges from 280 - 300 mOsm/kg, indicating fluid balance in the body.
Urine Specific Gravity
- Normal urine specific gravity range is between 1.005 - 1.030, reflecting hydration status.
Blood Urea Nitrogen (BUN)
- Normal BUN levels range from 10 - 20 mg/dL, indicating kidney function and hydration status.
Serum Creatinine
- Normal serum creatinine levels are 0.6 - 1.2 mg/dL, used to assess kidney function.
Serum Sodium
- Normal serum sodium levels range from 135 - 145 mEq/L, vital for fluid balance and neurological function.
Serum Potassium
- Normal serum potassium levels range from 3.5 - 5.5 mEq/L, essential for nerve and muscle function.
Serum Magnesium
- Normal serum magnesium levels range from 1.5 - 2.2 mg/dL, important for numerous biochemical reactions in the body.
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Description
Test your knowledge on the key lab values to monitor for dehydration in NUR 243. This quiz covers vital lab values such as hematocrit, serum osmolality, and electrolyte levels that are crucial for understanding dehydration. Understand how changes in these values indicate dehydration severity.
