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Nope on the Nitrox question. Just remember that you expel CO2 when you exhale. So making sure you have a full exhalation is the main thing. Think yoga breathing.

Wow, from your other thread, I see that you picked a very challenging place to do your first boat and first ocean dives! I'm sorry you had rough seas. But it was a good call to hire a DM and well done in keeping your cool and untangling yourself. I couldn't quite tell what part of the anchor...

I'd put my money on this too for what it is worth. The OP didn't mention whether he/she was diving in freshwater or saltwater. Only that he/she was diving a wreck at 27 feet. Which makes me think that it was NOT in the ocean which would likely rule out seasickness. I had some trouble with...

Please post some comments after your trip. I have tons of Marriott points to burn and would like to burn them at hotels which have good diving in proximity.

Oh my goodness, the drama. Have we forgotten that we all have the love of scuba in common and that's why we are all here? As in life, there are people we gel with and people we don't, but when everyone conducts themselves like a grown up, it should not matter. I agree that the whole thing was...

A most enjoyable read. I spent many many years in pediatrics, so have been privy to more snot discussions than you can imagine. Snot is one of the better body fluids to have running down your face in my estimation. Little kids and snot are kind of funny really. But over time, snot became...

I suppose that your definition is the correct one. Generally though, I'm pretty neutral when I jump, I jump and fin down the first few feet, never touch my BC unless there is some air trapped in it and I am releasing it, and don't have any trouble maintaining my depth for the safety stop...

We use negative entries as the surface current can be strong at times. If you stopped at the surface to gather yourself and signal OK, the current can pull you away from the boat and you could be doing it from 1/2 mile away. We usually meet our buddies on the hang line beneath the boat which...

If he got his fill at the shop, this shop is very meticulous with their gas mixing and is where I prefer to get my fills down there. They calibrate their analyzer frequently, ensure that it is back to baseline before putting it on the next tank (i.e., they don't hand the analyzer off to a long...

The list is far too long to go into here unless someone else wishes to make a very very long post. Syncope can be from a variety of cardiac causes, neurological causes, postural changes, respiratory causes, and so on. Think of it as anything that can cause hypotension, hypoxia...

Thanks for posting. I know this is a painful topic for you and I appreciate you posting in the event that it can help others. I too was suspecting a medical event of some kind, or at the least, a diving related seizure.

Understood. But should a diver take time on the surface to stop and signal an OK she may very well end up a mile from the boat. We do meet our buddy at the hang line at 15 feet, do our buddy checks, get anything that needs to be sorted out sorted out, and signal OK to each other before we...

So sad. It would be helpful to know what the cause of death was in the event that it could be something scuba related, such as a seizure. Though I know it would be awfully unlikely to be related to O2 toxicity as this dive was well within the MOD for the mix that they recommend and use at...

I'd guess that in our currents not hanging onto the anchor line would be far more dangerous. Sunday was a pretty average day in terms of conditions on the water. Though that can certainly vary by location. For those not familiar with the Carolina rig we use here, there is a hang line/bar...

This was out early this morning. Was kind of hoping that it would not make it onto SB until more was known.

I sincerely hope that lay people will follow your example. If you as a physician don't self prescribe, then certainly someone with less training that you should not. I travel with an arsenal which includes antibiotics like linezolid. I have to, in no small part due to the resistant...

I just wanted to highlight this point you made. Seems that many don't understand that you must match the drug to the bug. Even the post right after you made the point refers to a DM taking Cipro after being bitten by an eel. NOT the right choice had the wound become infected.

There is a lot of truth to this statement. There is a LOT more autoimmune disease in the US and other developed countries than there is in countries like Mexico. One theory is that those people simply die off in developing countries. The other is that we are so clean/antiseptic in the way we...

You didn't just slice three words out of context did you? Yep you did. You might want to avoid doing that. Unless you are just trying to pick a fight. I certainly didn't wish anyone death or injury and it is silly for you to imply that I did. But anyone holding on to a bag of fish or...

You can't assume that the market for tall women is small simply because you are having a hard time selling your girlfriend's drysuit. The proportion of drysuit divers to divers as a whole is pretty small to begin with. If you were selling your girlfriend's heavier wetsuit, I'd be all over it...