Confusion laboratory findings
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] ;
Overview
Laboratory tests
A large number of tests are needed in presentations of confusion. Most of the tests are to determine the cause of confusion. Careful history can reduce the burden of unnecessary tests.
- Blood tests include routine tests like CBC to assess general condition.
- Serum creatine, glucose, calcium , electrolytes.
- Blood for toxins and drugs.
- Urine analysis and culture.
- Blood culture if infectious cause has to be evaluated.
- Blood gas analysis if any metabolic derangement are suspected.
- Vitamin assays and cholesterol levels may indicate nutritional status.
- Renal function tests and liver function tests are useful if they are the cause of confusion.
- Assesment of hormone levels may be usefull espicecially thyroid.
- In cases of brain infections lumbar puncture is done and fluid is evaluated.