if you REALLY think it is REAL. and you have the money. and u can 預左吾使還, then 借 law... after all it is 一個生命. As a mother, I can understand if her son is REALLY in hospital, how 無助 she can be.
If this is a real situation, it would be very nervous and frustrated, as a mother whom works oversea.
So, I ask my maid about your situation.(please excuse)
She advises:
public hospital can provide good all-round medical service & it is not expensive; just tell the doctor that you have not have enough money right now and no money for the deposite, the doctor still provide service but may be put your maid's son as the last patient
alternatively, consult priviate doctor but keep your maid's son in public hospital; then he can receive first-hand treatment by proivate doctor but paying public hospital fee
regarding money, if your maid has Bill Card (Social Secruity), she can get up to 25% reimbursement from govt.
if your maid has OWWA (it is compulsory for employer to pay for it, so she must have this), she can also claim 25% of medical fee
that mean, if your maid has both OWWA and Bill Card, she can get a total up to 50% reimbursement of the medical fee
(p.s. their beneft is better than us!)
if a private nurse is required to take care your maid's, it only costs around $200 - $300 HK dollars per month
(this is same as told by my former maid)
Hope this information can help you have a good discussion with your maid or let you think about the arrangement.