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AMMONIA OR BACITRACIN OR BENZALKONIUM OR LIDOCAINE OR NEOMYCIN OR POLYMYXIN B OR WATER
- ... specific instructions about how to prepare for an ammonia levels test. You should not smoke for several hours before the test. You may be asked to avoid strenuous exercise and alcohol for a period of time. You may also need to fast (not eat or drink) for several hours. Your provider may tell you to stop taking certain medicines, including diuretics (water pills) and opioid pain medicines. But never stop ...