Argyll health boss Kieron Green says the town has the facilities to care for people who become ill.
The donation of around 250 FFP3 facemasks was made to the hospital as smelter workers have very little need for them in day-to-day work.
It happened at about 6.40pm on Monday triggering an emergency response from police and Oban Mountain Rescue.
It was only when the woman returned to the emergency department at Lorn and Islands Hospital for a third time that she was finally admitted and tests showed she had cancer.
The scanner is housed in a newly designed CT room with more space and brighter colours to help patients relax.