PH

1. Independent of the ABG selected, choose the worst pH from any of the blood gases.
2. I see I have two different guides here. The above and also another from previous guide which collectors are following.

• Sending out a survey & will post clarification. TOstryzniuk 16:00, 12 February 2009 (CST)

APACHE II - PH value	A	B
Instruction followed?	Use the PH from the worst ABG result you have selected for that patient?	Use the worst PH independant of the ABG you select?
Jackie		√
Norine M	√
Marylou		√
Lois		√
Joyce		√
Betty	√
Jan K
Kym
Laura	√

TOstryzniuk 18:19, 12 February 2009 (CST)

• Guideline discrepancy APACHE PH:TOstryzniuk 16:00, 12 February 2009 (CST)
• When selecting a PH for your APACHE score do you:
• a. use the PH from the worst BLOOD GAS result you had selected for that patient
• -or-
• b. do select the worst PH which is independent of the ABG you used?TOstryzniuk 16:01, 12 February 2009 (CST)

*NORINE-VIC

• I use the worst pH of the same ABG, I do not extract another pH from another gas as that would be stacking the deck wouldn’t it? Basically I choose the gas that would score the highest for the apache as a lower/higher pH can sometimes count more than a lower p02. Feb 12.09

Jackie Winestock_VIC

• Anyway, I look at the worst ph independant of the blood gas that I use. Jackie. Feb 12.09

Refer to General Collection Guidelines for Apache II#When to collect, which value to use for how and when to collect this.

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