The nurse absolutely should NEVER leave. I get home infusions through UltraCare. The actual nursing fee is minor (few hundred a visit). The nurse not only premedicates and takes my temp, pulse, and BP before starting, she checks BP and pulse regularly. Also their protocol is to draw blood and collect a urine specimen for analysis before each infusion to make sure the IVIG isn’t causing any harm. The total for each infusion, including nursing fees, supplies, IVIG, and lab work, has been about $10,000. I have BCBS of Illinois PPO and they are an in-network provider. Call your neuro and BCBS and see if you can switch agencies. There’s no way that what you experienced is standard of care.