That being said, how does one use an emergency inhaler at depth?
Who said anything about using an inhaler at-depth? The first obvious misunderstanding you're having is about how asthma works. It's not a complete loss of breathing function, it's a mild to serious constriction of the bronchea leading to reduced lung function which merely makes it harder to breathe. If you had an attack at depth (and I've read plenty of reports about it happening to asthmatics who've been medically cleared for diving, all of whom were able to get out of the water safely during an attack) you'd surface as normal with all the normal safety stops but you may need assistance from a buddy or DM on the way. When you've surfaced, you use the inhaler, problem solved. You're done diving for the day, and may want to reconsider if diving is for you.
You seem to assume that having an asthma attack while in water is going to kill, or even hurt, someone. DAN and the UMHS show no significant increased risk for barotrauma for divers with asthma (even severe asthma) and estimates that as of 1997 4-5% of divers had asthma. It's 2015 and there's no such thing as "unmanaged asthma" - the worst mistake an asthmatic diver could make is to forget to take their meds prior to a dive and put themselves at an increased risk of an attack, which will do nothing more than cause a mild truncation of a dive and may require a little help from someone else who is present.
Clearly there are risks to diving with asthma and going on solo dives is probably not a good idea no matter how well-managed your asthma is. And diving with a buddy who is not comfortable helping you out if you have a problem at-depth is also a bad idea. But that's common sense and something each diver needs to evaluate for themselves, assuming their doctor says they are fit as a fiddle. Which I am. The problem is (and not living in the most litigious State in the country yourself might make it hard for you to understand) that when a physician signature is required to perform any activity, they are inevitably getting themselves involved in a legal liability situation which can have a dramatic impact on their ability to keep paying for a new Porsche every year or being able to maintain 20-30 pro club memberships at golf courses. And that is WAY more important to them than you're desire to go diving with your friends and family, regardless of your fitness level.
The problem is that it's up to an individual and their doctors to make the decision, and a doctor may not be willing (for perfectly valid and understandable reasons) to put their name on a legal liability form. Dive certification agencies are asking someone else to shoulder the blame for them, instead of giving divers the option of assuming all personal liability themselves as with any other sport.
With that in mind, it's no wonder that not only 50% of divers (according to DAN) but also a number of instructors basically advise people to falsify the forms. Just look at the replies on this thread - RJP you are the only one who is making a serious issue out of the fact that falsifying the medical form is a problem. That leads me to believe that the form is an issue that diving agencies need to come up with a better solution to remedy.
I'm still waiting for more evidence that taking a student who falsified info on a medical form puts you in the crosshairs legally. Many have asked, and while you've provided
conjecture, you've provided no
evidence. How many instructors are you aware of that have been sued into bankruptcy because they were legally attacked by a family of someone who died directly due to a complication that was neglected (as in falsified) on their medical form?
---------- Post added August 17th, 2015 at 03:57 PM ----------
I admit I'm not sure how it works in US.
It's basically a bloody free-for-all here. Ever seen how sharks get crazy when you chum the waters? Yeah, it's pretty much like that in court here.