Please choose the correct ending to complete the given sentence: Health: [header] How to become a dialysis tech [title] Learn about the profession. [step] Administering dialysis and helping out sick patients can be an extremely rewarding profession. Although it may be difficult at times, there are many advantages to this career path.

Ending1: [substeps] To become a certified dialysis technician, you would need a high school diploma from a community college or a federal visa. This will help you prove your trustworthiness to your employers. Ending2: Assuming that you plan to work for a long time, you should do this right off the bat. Volunteering for plans, being a doctor's aide to patients, and helping out customers at healthcare centers can help you become a much-needed home patient. Ending3: Don't be discouraged if you fail. Learning more about a dialysis career can be crucial and important to your future. Ending4: [substeps] It is a great choice if you want to work in the medical professional without becoming a doctor or nurse. Providing help, aid, and comfort to individual patients and their families can be incredibly rewarding for you and those you help.

Answer format: ending1/ending2/ending3/ending4