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Questions and Answers
A patient's sodium level is measured at 118 mmol/L. What is the clinical significance of this value?
A patient's sodium level is measured at 118 mmol/L. What is the clinical significance of this value?
- Normal
- Critically high
- Critically low (correct)
- Elevated
Which of the following electrolyte levels would be considered critically high?
Which of the following electrolyte levels would be considered critically high?
- Calcium (Ca+) at 2.0 mmol/L
- Bicarbonate (HCO3-) at 38 mmol/L
- Potassium (K+) at 5.5 mmol/L
- Magnesium (Mg+) at 3.1 mmol/L (correct)
A patient has a potassium level of 6.2 mmol/L. What action should be considered?
A patient has a potassium level of 6.2 mmol/L. What action should be considered?
- Administer fluids
- Immediate medical attention (correct)
- Routine monitoring
- No intervention needed
Which of the following is the reference range for chloride (CL-)?
Which of the following is the reference range for chloride (CL-)?
A patient's lab results show a phosphorus (HPO4) level of 0.3 mmol/L. How would this result be interpreted?
A patient's lab results show a phosphorus (HPO4) level of 0.3 mmol/L. How would this result be interpreted?
Flashcards
Sodium (Na+)
Sodium (Na+)
Sodium is a mineral that plays a vital role in regulating fluid balance and nerve impulses.
Potassium (K+)
Potassium (K+)
Potassium is an electrolyte that is essential for muscle function and nerve impulses.
Chloride (Cl-)
Chloride (Cl-)
Chloride is a mineral that helps maintain fluid balance and is involved in nerve impulses.
Bicarbonate (HCO3-)
Bicarbonate (HCO3-)
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Calcium (Ca+)
Calcium (Ca+)
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Study Notes
Electrolyte Reference Ranges and Critical Values
-
Sodium (Na+):
- Reference range: 135 – 145 mmol/L
- Critical values: < 120 or > 160 mmol/L
-
Potassium (K+):
- Reference range: 3.5 – 5.0 mmol/L
- Critical values: < 2.0 or > 6.0 mmol/L
-
Chloride (Cl-):
- Reference range: 95 – 110 mmol/L
- Critical values: N/A
-
Bicarbonate (HCO3-):
- Reference range: 20 – 35 mmol/L
- Critical values: < 10 or > 40 mmol/L
-
Calcium (Ca2+):
- Reference range: 2.10 – 2.55 mmol/L
- Critical values: < 1.70 or > 3.25 mmol/L
-
Magnesium (Mg2+):
- Reference range: 0.7 – 1.1 mmol/L
- Critical values: < 0.4 or > 3.0 mmol/L
-
Phosphorus (PO4):
- Reference range: 0.8 – 1.6 mmol/L
- Critical values: < 0.4 or > 3.5 mmol/L
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