This morning I took my Lithium ER at about 8am, and at about 11:00am they took my lithium level. Usually I don't take my lithium before the test, and it's usually about 1.0-1.1. Today I got my blood drawn 3hrs after taking lithium, the hospital lab called tonight and said it is at 1.7 and at a toxic level. They advised to not take a very high dose tonight, and call my psychiatrist as soon as possible to get another blood test and adjustment.

What is the acceptable lithium level for someone who did take lithium in the morning, and got blood drawn three hours later? I take 600mg in the morning.