Has she tested negative or is all of this occurring before testing negative ?
Would they put her, masked, in solitary confinement to perform some nursing functions ? There is plenty of paper work, data entry , order review etc that could probably be done. Avoiding patient contact and staff contact may be doable.
I'm not sure it's worth doing from the hospital point of view, especially in light of what the hospital employees have already been thru. Is it possible there's a misunderstanding between her and the hospital ?