If someone thinks they were drugged, did negative urine test at hospital..could they have tested for all drugs>?

Not likely: A ua will not test for all drugs, but it will test for the most common drugs, particularly drugs of abuse. Other drugs can be added if a doctor specifically suspects them. Most date rape type drugs would be included in the drugs of abuse. Is there something besides this one that you think might have been used? I would have to see the report to know exactly what was tested....