All she need to take is her Passport and a credit/debit card to pay the fees(I think its 100 riyals). They are open from 6.30 am till 1:00 pm. There will be long queue so better to go before 6.30. It will take only 30 mints..they will take blood and x-ray. After two days You can check the result on the website . If it says fit you can go to immigration and extend the visa for 2 more months.