O2 percentages and liters

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Ok,please help me with this,as I feel like an idiot,and of course,none of the 5 nursing supervisors know nothing,I kid you not? Nobody could answer this question at my office.

I have a pt who wears a trach collar at night. Her orders state"pt may have up to 10L o2 to keep sats greater than 93%. She usually needs some o2 at night,but this is where confusion comes in.

Here is the strange part: On top of the humidifier cup,there are percentages of o2.

It can be turned to 21%,28%,40%,60%,80%,and 100%. On the flow sheets,we have nurses who put down she is receiving 1L of 02,and others put down 8L,and it differs night to night.

What I guessing is that the ones who put down 2L/min are turning the dial to 100% 02,and the ones like me who use 6L are leaving the dial at 40%.

I have never seen a cup like that before,as usually the humidifier cup doesn't have that on it.

Now,we know we can manipulate it to be put at 28%,40%,and so on so that she recieves more or less of the mist. I don't think any of the other nurses understand either,to be honest,because I left notes for them,and nobody responded back.

Nursing supervisor states just put the Liters down instead of Fio2...

So,child is recieveing 1L/min one night for 8hrs,and 8L/min for 8 hrs the next night.

I wonder how we would explain that to the insurance company when they review the notes.

Specializes in ICU.

I don't have any advice for you here, I just have to say I am glad you bumped this one because I just learned my knowledge is limited after reading some of the PPs. Time to go read some of those links TraumaSurfer provided.

Type/write it out by hand, omitting the identifying info of the posters? Like as not, they will not be concerned enough to try to sleuth it down on the internet. Probably won't even ask you for the website link.

Actually, I would not deal with the supervisor first. Get an RT to write you a sample "order", or if they can prescribe like they do with our vent settings, or get the PCP to change the order after a discussion; present that to the supervisor to get the order changed on the 485.

New here:

Yep, saw this in action (and inaction) with an old relative recently, and was explained to me by the RT on duty and the RN on duty (RN:pt or 1:3, not bad!)

11L off the wall, 40% (needed to be at or slightly above 35% as compared to the Avea 8000i vent setting of 35% for night 'safety') first day of 8 hours Volume A/C mode, pt only, then wall aire on collar for 4 hours! Pretty good for having been on vent-only intubated for 16 days due to acute failure post-heart block (running on Venrialuar Timer only!).

Interesting is that the tube flow end at the collar wasnt tight around the collar (trach tube fittting or locked to it), it was just blowing over it, but sat was hodling at 99 to 100% - cant do much better than that...Being new here, I didnt know you could just set the thing near the trach tube, Humidified bottle of course at the "tap", but damn cold if you ask me - the vent had a wamer and water-trapped humidification attachment normally. Ah, technology!

(the 14 day rule usually followed by ICU as cost measure, not so much bad, pt had other issue that needed clearing before proper final assesment)

The Venturi excample link is bad - you have to be a member to see the info. An aside: the word "vent" comes from Venturi!

Oxygen Flow Rate and FiO2: Understand the Relationship! – Blogging For Your Noggin

Talk about an online in-service!

Easiest, best RT esplainin' I have seen so far!

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