all right so flow meters deliver oxygen and they actually Connect into a 50 psi hookup in the wall in most hospitals they have compressed gas um this is a standard FL eater this back piece hooks up this is called a chemtron hookup not it's just more of a technical term for it but I'll kind of show you how it works a little bit uh also another piece you might see which goes on the bottom as an oxygen adapter uh often referred to as a Christmas tree because obviously looks like a Christmas tree this screws onto this piece on the FL meter and then your oxygen device would attach to the Christmas tree and it's just pushed on like this now we're going to show you how it connects into the wall so we're going to show how the flow meter connects into the wall uh this is a pressurized gas system so this thing can kind of pop out if it's not done properly it's not like it's going to shoot all the way across the room it'll just of flop off onto the ground but anyway it goes in this direction there's two holes here large hole and a small hole the top one is actually the oxygen Outlet it's going to go through here and the bottom one is actually the latch as you can see this little latch piece right here that allows this to go in and stay in so what we're going to do is I going show you the pressure that's inside of the wall so by pushing a pin in here don't do this at home rroy therapist only so that's the pressurized there 50 PS I that comes out what this is is going to press against that and it's going to deliver it into the flow meter insert in just push it with firmly into the wall at this time we're we don't really know if it's delivering oxygen or all so we'll turn the knob most of the knobs say on and off so um counterclockwise rotation of it opens the valve and you can see now that we're delivering oxygen this standard flow meter is from 1 lit to 15 L if it goes all the way to the top which is very loud you can hear that you open it up all the way we call that flush and that's usually up to 40 L we don't do that very often usually with our auction devices it's anywhere from 1 to 15 L how do you measure it well there's a ball inside of it and this ball measure by the center of the ball and it'll be on the specific line for the leader flow now these are technically called and this is a Jeopardy term but compensated Thorp tubes now how do I know that because if I include this right here see the ball fell this is really great if your patient on nasal canul and let's say the wheelchair rolls o rolls over the the canula when it stops flow to the patient you see no flow on here anymore okay so if you see that this ball is where it should be that means you know that the oxygen is coming out of here appropriately and getting to to the distal aspect of the Cula so just one way to kind of test that go anywhere up or anywhere any place down now often you'll find where these you might have a FL meter in room patient just moved in and there's no Christmas tree attached I'm going to show you one real quick kind of U extra note about this area of the flow meter so if you're in an emergent situation and let's say the respiratory therapist or somebody took this piece off the flow meter and you need to ventilate this patient right now almost all emergency uh resuscitative devices have a different end on the on the end of the oxygen tube and you see it's larger um has some like threads on it what it can actually do is in this case it actually pushes up over that so that we can deliver oxygen to our bag valve mask so in an emergency you don't have to have somebody run down the hallway to try to hunt down a Christmas tree right here you can actually go right over top of the threads just press it forcefully and that's how it will go or if the Christmas tree is on there you can use the same way like that and then deliver it now taking it out is what everybody's a little bit kind of freaked out about it's not a big deal in this case I'm pushing the button on the top and it kind of pops out let me show you what it looks like if I don't grab a hold of flator you'll notice a lot of people will grab it they'll put gentle pressure in push this and pull it out of course I've been doing it for a while so it's easy but if I'm just going to push this you're going to watch it didn't pop out but sometimes they pop out and fall on the ground so you don't want to just there we go it pops out and kind of falls on the ground so the key to doing it is having it in pushing this down and just pulling it out it doesn't come out with really any Force at all but you do have to control it um oxygen air and medical uh vacuum of course the the oxygen flow meters will not go in the air side and they definitely shouldn't if it's green it's oxygen so make sure you don't put it in medical air if we went medical air delivered to the patient we're not going to deliver any F2 so that's a problem so make sure that you're delivering on the oxygen side and it's always the note as being green