No one hopes to make a 911 call.

That moment of desperation in a park or in your home when immediate medical care can't come fast enough.

But in Canada, calling 911 doesn't always guarantee the paramedic who arrives can do everything in their power to save you.

In fact, in most provinces, some of them are prevented from doing that. W5’s Kevin Newman asks, why? Watch the episode in our player above.

Related links:

1.       Paramedic Association of Canada -

2.       Paramedic rulebook -

3.       Letter from the Ontario Paramedic Association about W5's '911 Roulette' story, and W5's response -