Question 145 · LEK · Sodium balance
An 82-year-old patient was taken to the Emergency Department because of disturbances of consciousness that had been intensifying for the last 24 hours. The laboratory tests showed serum concentration of sodium - 122 mmol/L, potassium - 3.9 mmol/L, creatinine 1.6 mg/mL. Which of the following should be first ordered?
- A. Ringer’s solution 500 mL - infusion for 30 min.
- B. 0.9% NaCl 500 mL solution - infusion for 20 min.
- C. 10% NaCl solution - infusion for 20 min.
- D. 3% NaCl solution - infusion for 20 min.
- E. 5% glucose 500 mL with 40 mEq 8.4% sodium bicarbonate solution - infusion for 15 min.
Hint
Hyponatremia with worsening consciousness calls for a small volume of hypertonic saline given quickly.
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