Final answer:
Step 3 in starting hemodialysis involves the direct supervision of a registered nurse, where patients receive individualized care in preparation for and during the dialysis process.
Step-by-step explanation:
The initiation of treatment or starting step 3 in hemodialysis typically involves the direct supervision of a registered nurse, focusing on providing dialysis treatments. This includes a review of the patient's history and current condition, assessing and responding to patient needs before and during treatment, and monitoring the dialysis process. The protocol may also include taking and reporting the patient's vital signs, as well as preparing solutions and equipment to ensure the procedures are accurate and sterile.
Patients usually require hemodialysis several times a week because the kidneys are no longer capable of filtering waste effectively, and regular sessions are needed to maintain proper fluid and waste balance in the body.