Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
How much is the lowest glucose(mmol/L) with [Na +] under 0?

### Inputs:
table_name: table, columns: ['Solution', 'Other Name', '[Na + ](mmol/L)', '[Cl - ](mmol/L)', '[Glucose](mmol/L)', '[Glucose](mg/dl)']

### Response:
SELECT MIN [Glucose](mmol/L) FROM table WHERE [Na + ](mmol/L) < 0