perth 's joyce tabram was admitted to fiona stanley hospital on march 30 .
she spent five days not eating because doctors told her to fast for testing .
ms tabram , 82 , had a swollen abdomen but was not tested up until april 3 .
she asked to be discharged and is expected to be tested later this week .
the frail , elderly woman has called on the hospital to be closed down .
but wa 's health minister said hospital doctors had acted appropriately .