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Only for niche and custom tests. Or maybe extremely small labs. Everything is automated and has been for many many years. The modem machines read the tube barcode, look up the patient/test, perform the test, and upload the results electronically. The only thing a tech touches is loading/unloading the tube and dealing with errors.
It may have changed more recently (or depend upon country as well), but I was still getting results from old serial/null modem devices about 10 years ago (I worked on the centralized IT side so I didn't see these devices, but this is what the on-site tech was telling me when troubleshooting things)