Question: How much is the lowest glucose(mmol/L) with [Na +] under 0?
SQL: SELECT MIN("[Glucose](mmol/L)") FROM "2-16689223-1" WHERE "[Na + ](mmol/L)" < 0.0;

Question: What is the highest glucose(mg/dl) with a solution of 2/3d & 1/3s and glucose(mmol/L) less than 185?
SQL: SELECT MAX("[Glucose](mg/dl)") FROM "2-16689223-1" WHERE "Solution" = '2/3d & 1/3s' AND "[Glucose](mmol/L)" < 185.0;

Question: What is the largest [Cl -](mmol/L) with a solution of d5ns and [Na+](mmol/L) less than 154?
SQL: SELECT MAX("[Cl - ](mmol/L)") FROM "2-16689223-1" WHERE "Solution" = 'd5ns' AND "[Na + ](mmol/L)" < 154.0;