The nurse is reviewing the laboratory results of an elderly female patient who complains of being dizzy
Which laboratory results would the nurse evaluate as a possible cause of this condition? Note: Credit will be given only if all correct choices and no incorrect choices are selected. Select all that apply. 1. Potassium of 3.4 mEq/L
2. Sodium level of 131 mEq/L
3. Blood glucose of 75 mg/dL
4. BUN of 26 mg/dL
5. Hematocrit of 40%
1,2,3
Rationale 1: A low potassium level can cause light-headedness.
Rationale 2: A low sodium level can cause light-headedness.
Rationale 3: Blood glucose of 75 mg/dL is on the low side of normal. If this is lower than the patient's normal glucose, dizziness may occur.
Rationale 4: BUN of 26 is slightly elevated but would not be likely to cause dizziness.
Rationale 5: A hematocrit of 40% is normal for a female.
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