My friend had taken the dosage calculation test this morning and after she took it, she called me hysterical because there was a question on there she wasn't sure about. The doctor ordered 1 grain/200; availible is 30 mg,how much should you give the patient? I already took my test and got 100% on it, but being a prenursing student, I didn't know what this meant exactly. She said that there was no unit on the 200. Was this a typo on the test or can you tell me how to figure this out. Thanx alot!