How do you transfer a patient from the bed to a wheelchair?

My father uses a hoyer sling and lift. Amazing device which has enabled him to live at home longer than he would have without it. At 200 pounds, my sisters and I definitely couldn't lift him without it, and my brothers were in danger of hurting themselves. Now, though, as he gets weaker, the problem lies in getting the sling under him.

My son, healthy and strong but recovering from an accident, had only the use of one arm. He learned (in PT) how to transfer himself from bed to wheelchair to commode.

My mother, in her 90s and weak, could not bear any weight at all on her legs. She needed sit-to-stand equipment and two aides to transfer her. The aides, of course, were trained to do this.

How you transfer a patient varies widely, depending on the patient's specific needs, weight, strength, cognitive ability, etc. I don't think your question can really be answered without a lot more information.

When my mom started to require assistance with transferring, the doctor ordered a PT session. It was great and she taught me how to safely make transfers.

Agree with cwillie U tube has a number of short videos demonstrating how to perform many nursing duties.
If you are bringing a loved one home from a hospital stay the nurses should instruct you before you take on the responsibility alone. Any equipment needed should also be prescribed. Some time with nursing help in the home should also be provided when necessary. If the patient is in rehab be sure to spend time with the aides and learn all you can

If you are just studying for an exam mary I suggest you read your textbook, otherwise I once again recommend YouTube, try searching "wheelchair transfers".