BBM
but that's the thing .....
with a vagal episode and then being put into the water, there would be no water in the lungs. (*per screen shot of book page above). Or being put into cold water, can cause a vagal reaction and no water in lungs on autopsy autopsy. With the vagal reflex, the muscle essentially shuts off the airway, thus no water enters lungs. It is what has saved some drowning victims from dying, if they are revived relatively quickly.
I believe that is what is called a "dry drowning", maybe even a diving reflex? The vagus nerve at top of larynx reacts by slowing then stopping heart rate. An impulse along laryngeal nerve causes a laryngospasm (which keeps water from entering lungs).
www.poolwatcher.au/ertrinken.pdf
More info along this line might be found by searching "vasovagal reflex mechanisms" or vagal reflex with drowning.
* which was removed. Sorry Bessie -- I didn't realize a screenshot of it was not allowed. Post 97 here has the link. Ipad won't let me retrieve it without losing my post.