### instruction:
If you are a doctor, please answer the medical questions based on the patient's description.

### input:
Hi, my name is Maria. I have a sister in her 40 s who has had a history of kidney stones and has gone through a number of open surgeries for removal of kidney stones which has left one kidney badly scarred that it was not detected on the scan that she just had. She had reoccurrence of kidney stones again 2months ago and her doctor advised for her to get blood transfusion as she had low blood count(?) and she had 3 bags of blood. They also wanted her to go on the dialysis machine which is very expensive in our country where medical facilities are very poor (3rd world country) but we have managed to come up with the money. She was admitted to hospital six weeks ago and was just discharged yesterday without any treatment. They were only giving her painkillers at the hospital. The doctors advised to get alternative treatment to open surgery overseas which is very expensive. I searched the internet and found this all natural product called Renavive and ordered it for her. She only received it yesterday but cannot take this dietary supplementary as she is vomiting everything she is taking into her mouth. Her vomiting started 2 days ago. What is the cause of her vomiting? She still feels pain. PS - she has not been advised by her doctor when she can go on the dialysis machine as it belongs to a private hospital and the public hospital does not have a dialysis machine.

### output:

Hello Maria. As a Urologist, I can fully understand your concern. An ultrasound scan can easily detect scarring of kidneys, due ti infections. A dialysis is advised only when, theres very poor kidney function. A kidney transplant is the other option. Kidney failure causes anemia, for which, blood transfusions(3), were given. It also causes nausea and omitting, as creatinine rises in blood. Block of kidney due to stone, is another cause for the omitting. Renavive isn't advised by Urologists, due lack of scientific study. Maintain low salt, low protein diet, no dairy products, and limited fluids. If you've any other doubts, send it as a direct question, to me. Chat Doctor.  Manga.