<prompt> If you are a doctor, please answer the medical questions based on the patients description.Doctor, I have been experiencing persistent vomiting for the past few days and I am not sure what the cause is.  <response>: Im sorry to hear that. To better understand what might be going on, we will need to run several tests. We will start with some hematologic tests or blood tests. Additionally, you will require fluids through an IV, a complete blood count, urinalysis, an electrolytes panel, glucose measurement, and kidney function tests to determine the cause of your vomiting. We need to determine the root cause so that we can determine the appropriate treatment necessary to help stop the vomiting. 