It depends what he wants to do. I've taught the health and social care level 3 BTEC, and if you are going into nursing I'd say it is better prep than A Levels.
And I say that as someone who has a number of medical issues.
BTECs are also a vocational qualification in their own right and can lead to employment.
If you are heading for oxbridge you need A Levels, if you are want to learn more practical skills then go for BTEC.
As a teacher I love the flexibility of BTEC.
Most BTECs have some form of health and safety unit, so you can have students write an essay, not most students favorite and for marking takes time. Or. if you have the room you can set up a disaster area, so the resus doll is put in bed with an oxygen mask and a fake cigarette, drape electric cables along the floor and over the bed, put dirty bedding on the floor with a plastic turd.
Students come in one by one and have to identify the hazards, I tick them off and that is then the evidence they have identified x number of hazards.
Obviously there are other ways, if the college has a VLE / moodle then an assignment can be put on there.