On Saturday, May 13, 2017 at 7:26:43 AM UTC-7, Joerg wrote:
On 2017-05-12 13:38, jbeattie wrote:
On Friday, May 12, 2017 at 9:36:32 AM UTC-7, Joerg wrote:
On 2017-05-12 08:23, Sir Ridesalot wrote:
On Thursday, May 11, 2017 at 10:06:04 AM UTC-4, Joerg wrote:
Snipped
But then, to one who habitually uses a nail and a rock as a
chain tool the use of proper tools is probably a mystery.


Try to differentiate between an outdoors emergency situation
and the workshop in the garage. It's not that difficult.

- Regards, Joerg

http://www.analogconsultants.com/

Which is hy mose of us carry a small tool repair kit that
includes a chain-breaker.


Most? Most cyclists don't even carry a first aid kit and that is
way more important than a chain breaker tool. I have used mine
multiple times. Never for myself.

Still debating with myself whether to schlepp the CPR mask. It's
light but adds volume.


... That way a broken chain isn't an ememrgency and a repair only
takes a few seconds. After all seconds count when you're beig
stalked by mountain lions or other hungry critters doesn't it?
For someone who either breaks chains a lot or often comes across
people with a broken chain (bother very rare where I ride even on
the technical trails) it ONLY makes sense to have a chain breaker
and spare link(s)and quick-link WITH YOU.


I usually only carry tools where there is hardly any alternative.
For breaking a chain there is.


To be honest using a rock and rusty nail to repair a chain in
the field sounds like something an armchair bicyclist would think
up. Such a repaired chain would most likely fail again after only
a short distance.


So why did they never fail?


... Believe it or not there's good reasons why chain breakers are
used to fix a chain.


I might get one of those. One of these days, as grandpa Kettle
would have said. If I find a really tiny one on sale for a good
price.

I might even consider a new headset for the road bike. Maybe :-)

When was the last time you needed a CPR mask?


Personally never but I know others who had to use theirs.


... When was the last time you needed a chain tool?


I never did because I used the kludge method :-)


... Hmmm. Seems to be an easy choice, no?


Not really. A failed chain repair results in annoyance, a failed CPR
attempt results in a lot of grief for a family.


If you find a lifeless person on the trail -- in the middle of
nowhere with the mountain lions circling -- remember that you will
have to do compressions until the helicopter arrives. Now consider
this: http://jaha.ahajournals.org/content/5/3/e002819 You're probably
better off sitting down and writing a condolence letter.


I have a very different opinion and so have the fire chiefs around here
where I did my last refresher class. A low survival rate is not a reason
to give up.


OR, you could get a super light-weight AED (assuming the dead guy had
V-fib and wasn't totally dead).
http://www.aed.com/philips-heartstar...FVJbfgodvGkHNQ
I think Nashbar has one that comes in a seat pack. You could also get
one of these:
https://ideasinspiringinnovation.fil...ce_kenya-2.jpg

Plus, if you witness a riding companion going down and dying, you
can just do compressions these days -- which is kind of
mind-boggling.
http://www.nejm.org/doi/full/10.1056...00005253422101
https://lifeinthefastlane.com/ccc/compression-only-cpr/

Or, you can choose to ride with companions who do not have
communicable diseases and on whose mouths you are not afraid to
perform mouth-to-mouth, obviating the need for a special mask. Ride
with some of those women from Muzi's body-paint link.


You can always rip a plastic bag which I always have on the bike and use
that as shield. However, a CPR mask provide a much more effective air
passage way. Take a look at one if you never have so far. They have them
at fire stations.

We just had a case here where a very healthy and trim looking runner
collapsed on a MUP and the docs later said that without strangers
administering CPR she'd be gone now.


I did CPR on hundreds of people over six years of working ambulance, most with a ventilator of one type or another (demand valve/Hope/Ambu bag) except sometimes mouth to mouth on babies. Survival rate after (like I said) an unwitnesssed event was really low. Doing manual compression for more than half an hour is exhausting and, again, usually unavailing outside an ER where you can correct blood chemistry and place an ET tube.

Masks and simple airways (as opposed to an ET tube) and mouth-to-mouth all have the same problem -- they can put a lot of air into the stomach. One thing good about a mask is that it prevents patients from vomiting into your mouth -- although if you do CPR and ventilation enough, you know when the vomit is coming. With a long transport doing CPR with a simple airway, vomit is inevitable -- and thus all ambulances had suction machines, unlike guys on bikes.

Witnessed heart attacks are a whole other thing and survival rate is higher with CPR. Finding some guy dead on the trail . . . not so much.

BTW, you may get a better seal with your own lips than a mask, although my only experience on adults is with a doll. Resusci Annie was super hot! https://thumbs.worthpoint.com/zoom/i...da641c0270.jpg

Annie, wake up! Annie . . . I got my advanced first-aid and CPR card when I was 16 and did my first CPR at 16. That's all you needed to work ambulance back then -- CPR and advanced first-aid. You also needed to be 18, but the guy who owned the company was a family friend and was happy to let me work. My first CPR was on a guy who was practically in rigor, but my boss wanted me to do CPR because he knew the family and wanted to give them hope. Very odd. The hospital was ****ed off at us. It was basically a removal -- something I did for a job a few years later.

I also remember the exact moment I decided I did not want to be a doctor -- doing CPR on a baby and recalling the relief I felt when handing the baby off to an ER doctor. I had a soft spot for babies. I was much more accustomed to adults dying off.

-- Jay Beattie.