FiO2

Data Element (edit)
Field Name:	Ap_FIO2
CCMDB Label:	FIO2
CCMDB tab:	Apache
Table:	L_Log
Data type:	number
Length:	single
Program:	CC
Created/Raw:	Raw
Start Date:	1988-07-11
End Date:	2300-01-01
Sort Index:	67

FIO2 is the fraction of inspired oxygen[1] in the gas mixture breathed by the patient.

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Legacy implementation right in the table

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It is an element of the Arterial blood gas (APACHE).

See http://en.wikipedia.org/wiki/FiO2

Apache Physiological Variable
variable name	fraction of inspired oxygen
unit	percentage
absolute max allowed	100
warning max	100
high score 4
high score 3
high score 2
high score 1
score 0	as per AaDO2
low score 1
low score 2
low score 3
low score 4
AP phys warnMin	20
AP phys absMin	20

APACHE Score

This value is used to generate the APACHE Score.

Collecting Apache physiological variables

There are some specific rules to follow in choosing which one of several lab results to collect.

See APACHE physiological variable collection for details.

Cross Chcks

Rules described in APACHE_physiological_variable_collection#Exceptionally_high_or_low_values are implemented by Check APACHE physiological variable high low.

Collection Instructions

• Enter the FiO2 by referencing the type and LPM in the table on your laptop in CCMDB.mdb, or at the bottom of this article.
  • Once entered, your choice will translate into a number. If you go back to the dropdown later to check what you have entered, the choices may not be what you entered, but they will be something that corresponds to the same percentage FiO2. In other words, you can not go back to this field later to see the type or LPM you entered originally.

Your FIO2 will influence how you collect Arterial blood gas (APACHE), check that article for details.

Why we collect FiO2

FIO2 is used in the calculation of the APACHE score.

"Flush" for non-BiPAPs

• At least at HSC, the term "flush" is also used for rebreath. In that case, it means the oxygen flow meter is set at its maximal flow. What FIO2 value should be used for this? Template:Discussion Ttenbergen 14:39, 9 April 2010 (CDT) as per Marie Laporte
  • I spoke to some members of the Transport team (RRTs) who state that once the flow meter is set at a maximal flow above 15L/min (flush) it becomes difficult to determine exactly what the approximate FiO2 is. Marie
    • OK, but what is to be used for collection? Ttenbergen 17:24, 1 November 2010 (CDT)
      • Any confirmation? What do you use if records say flush? Ttenbergen 14:06, 2014 September 19 (CDT)
      • If anyone knows the answer to what Fi02 flush is, can they post here or is this still unknown what to use? I see in our program on the apache Fi02 choices we have a 100LNRB which gives 80 percent. Is that what we should use?GHall 11:59, 2016 June 30 (CDT)

OptiFlow

• We need to address what FiO2 to use for Opti flow which is a specialized system with varying Oxygen flows. Probably will need to enlist respiratory to set up a table for this.--LKolesar 13:18, 2015 February 19 (CST)
• need a volunteer.Trish Ostryzniuk 17:37, 2015 February 19 (CST)

FiO2 Reference Table

• The FIO2's listed in the table below are ESTIMATES ONLY that we use for the collection of arterial blood gas (ABG's) data for APACHE II scoring]] purposes.

• The actual FiO2 that a patient gets varies due to a number of factors that are not accounted for in these estimates. (breath rate and depth, distance of O2 diffuser from face, resistance to flow etc.)

Type	Code	% of O2	Type	Code	% of O2	Type	Code	% of O2
No Value	No Value	0	Cold Pot	35 ColdPot	35	Partial Rebreath	10 LRB	65
BIPAP	5 L	40	Cold Pot	40 ColdPot	40	Partial Rebreath	12 LRB	65
BIPAP	10 L	60	Cold Pot	50 ColdPot	50	Partial Rebreath	8 LRB	65
BIPAP	15 L	70	Cold Pot	70 ColdPot	70	Partial Rebreath	10 LRB + 3 L NP	70
BIPAP	FLUSH	70	Cold Pot	100 ColdPot	100	Partial Rebreath	10 LRB + 5 L NP	70
						Partial Rebreath	13 LRB	70
Nasal Prongs	Room Air	21	Non Rebreath	10 LNRB	70	Partial Rebreath	15 LRB	70
Nasal Prongs	1 LNP	24	Non Rebreath	15 LNRB	70	Partial Rebreath	15 LRB + 5 L NP	70
Nasal Prongs	2 LNP	28	Non Rebreath	100 LNRB	80	Partial Rebreath	15 LRB + 7 L NP	70
Nasal Prongs	3 LNP	32	Non Rebreath	20 LNRB	80
Nasal Prongs	4 LNP	36	Non Rebreath	25 LNRB	80	Venturi Mask	3 LPM	24
Nasal Prongs	5 LNP	40	Non Rebreath	30 LNRB	80	Venturi Mask	4 LPM	26
Nasal Prongs	6 LNP	44				Venturi Mask	5 LPM	28
Nasal Prongs	7 LNP	48	Simple Flow	6 Lpm	35	Venturi Mask	6 LPM	30
Nasal Prongs	8 LNP	50	Simple Flow	7 Lpm	40	Venturi Mask	9 LPM	35
			Simple Flow	8 Lpm	45	Venturi Mask	12 LPM	40
OxyMask	1 LPM	24	Simple Flow	9 Lpm	50	Venturi Mask	15 LPM	50
OxyMask	2 LPM	28	Simple Flow	10 Lpm	55
OxyMask	3 LPM	32
OxyMask	4 LPM	36	Ventilated	25 Vent	25
OxyMask	5 LPM	40	Ventilated	30 Vent	30
OxyMask	6 LPM	44	Ventilated	35 Vent	35
OxyMask	7 LPM	48	Ventilated	40 Vent	40
OxyMask	8 LPM	50	Ventilated	45 Vent	45
OxyMask	9 LPM	54	Ventilated	50 Vent	50
OxyMask	10 LPM	56	Ventilated	55 Vent	55
OxyMask	11 LPM	58	Ventilated	60 Vent	60
OxyMask	12 LPM	60	Ventilated	65 Vent	65
OxyMask	13 LPM	62	Ventilated	70 Vent	70
OxyMask	14 LPM	64	Ventilated	75 Vent	75
OxyMask	15 LPM	65	Ventilated	85 Vent	80
			Ventilated	85 Vent	85
			Ventilated	90 Vent	90
			Ventilated	95 Vent	95
			Ventilated	100 Vent	100

Implementation

The field draws its values from table S_FIO2.