I hope that Mars blunder was not in your court. But that error was by a factor of 'just' 4.5, the difference between pounds and newtons. This CPAP units difference is by a factor of about 70.
Nope. Mine's set by prescription to less, but have awoken to find (with no pressure leaks or discomfort whatsoever) that the machine has compensated to 12 (my face... interface? is nasal-only, which means it has two screens on either side to bleed excess pressure during exhalation). But tbh, a single roll in bed to break seal temporarily just once during the night, can cause this in my machine. -- Speaking of vaxes: had a weird, roundabout adventure today, to arrive at 'boy am glad my flu vax worked'... So journaled in my thread no one reads called 'Bodywork'... that R knee were really flaring up, like just as bad as week 1 after injury. Workouts had been I'd say 85 - 90% effective 3 mos nearly, walking, climbing and later doing balance exercises. All went to pot yesterday, as nothing I did as a bodyworker would get the knee to not be painful and 'trick'. Even walking were exhausting -- new since first week. So dejected, tried to rest by not working out, just wash / wax the car... again, nothing but draining pain and hobbling around max 0.75m/sec. Got home, did chores (CPAP cleaning, which is only slightly less annoying w/ my cobbled DeWalt drill + cut-up bottle-brush-on-long-spring) and went to bed hrs before normal bedtime -- which isn't me but damn, felt drained deep into the red. Add the fact acute pancreatitis twice in 15 mos the last Year of the Snake, from decades of drive-thru diet... had me worrying about the onset of another attack -- which I couldn't nail why, but also couldn't ignore the symptoms. Woke at 0418. Looked on my CPAP app, I'd slept 8hrs, 34 mins. I've gotten by on half that 20 yrs, and only when it dropped into the 3-hr range, did I seek help. But holy shite, felt great. Even the knee. So wanted to get my day going... without eating breakfast, tho (in case were actually on the edge of panc). [When you get idiopathic pancreatiitis, they have no idea why it's happening, that's what 'idiopathic' means. Usually when people roll into an ER / A&E screaming in pain and doubled over w/ lipase and amylase thru the roof, they're alcoholics. Mine were different diagnostic levels... so practically the only way you can get panc w/o being alcoholic, is thru extremely high levels of serum triglycerides. My blood was so loaded w/ these lipids first ER visit... the nurse showed me how sick I was, by simply shaking one of the blood vials: separated into a grey foam and brick red blood -- that grey was all fat, from rupturing the molecular capsules that permit it to travel to muscles in the bloodstream, called chylomicrons. My Tri levels were 1865mg / dL of blood. Normal, is 150... and treatment is to starve you for 6 days on a saline drip, painkillers and water / ice chips, so the GI tract can turn off and heal. You can get this way with a low metabolism + high simple carb / sugar / fat intake... and genetics from my cane worker ancestors, which for generations reinforced keeping triglycerides in serum rather than store it as abdominal fat, for quicker muscle access to fuel.] It wasn't panc, thank god. But did do some working out -- instead of vertical laps, walked up the ramps to the 4th-level -- which felt fine, and none of the gimping from Sunday. Did redo some aligning in the knee... and with an audible pop, my knee was actually taking load, w/o pain. Sore and tight in other areas of the knee... but that main one, on the inside condyle of the femur... was gone. Did just one round, up and down again. Then drove to another spot and walked a bit further, then to another. Each spot had zero climbing, just length of ~1/2 mile, not long. Huh -- so why in the hell do I feel so... normal today? When yesterday felt like toughing out the flu? Because I probably were... This flu season's rough, I hear. Was sure to get flu vaxxed as soon as. Reaction to being infected, which in really rough years the vax gives a thumbnail version of it, must've been why I felt so weak and inflamed. The proof's in my knee -- today walked about a mile in total, yet not even half the pain, and none of the weakness. But thanks, whomever had the flu and wasn't vaxxed. About convinced me 1) was about to get panc again, and 2) my knee was a basket case. Go take a long walk off a short effing pier
12 what? psi? cmH₂O? mmHg? kPa? bar? torr? I'd think that 8 or 12 psi into the lungs to be exceeding painful, at minimum.
D u n n o about that -- might've heard which units after the sleep study, but iirc, it's psi. The numbers are what's prescribed with my machine, and nothing in the ResMed app allows access to the prescribed settings - so no idea how to confirm units w/o calling the provider. My setting (if psi) feels actually a bit weak. The machine has a feature that lowers pressure to 3 (if psi) when it senses exhalation, and I have that enabled, set by the provider. Often gone as high as 12 (if psi), but doesn't always need to go there; frequent spot is 8 - 9. If the machine drops to 3 psi during exhale tho I wouldn't feel discomfort, and certainly wouldn't be hurt by it, using daily since May. Remember the mask has exhaust ports open at all times to prevent overpressure situations; the machine is designed to take this into account. Chappy has a point re: farting on face -- my veteran friends in Y2Ks waved me off CPAP, as back then all the VA had were F-16-fighter-like full face masks on machines that set pressure so high that it'd literally face-fart, if you moved at all. But this modern machine, as frustrating as cleaning it is, isn't anything like those contraptions from 15y ago. Closest thing is if I roll too much and physically pull the nasal mask crooked, then it makes a bit of whooshing noise... or switching off and leaving the hose connected after waking up, and going to the bathroom. When I get back sometimes the machine'll blow full pressure thru the whole kaboodle for some reason; other days nothing. So no Bronx cheers - do not know <-- this is hilarious, 'do not know', gtfoh, about others who actually need the full masks, tho. Better to ask them.