AP Sys BP Field

The AP Sys BP data input field records systolic blood pressure value.

The field is related to AP Dias BP Field; although they are separate fields they must come from same reading!

The details of collection for ICU and medicine are different. For the timeing and which value to use, see:

• for ICU: General Collection Guidelines for Apache II#When to collect, which value to use
• for medicine: MOST score timing of assessment

Critical Care

Refer to Mean BP for information on collection Systolic BP for critical care.

Blood Pressure when on IAPB (intra aortic balloon pump)

We want the worst value in the 1st 24 hrs in ICU, so if possible get the pre IABP BP.

If only post IABP BPs are available, use peripheral arterial BP, not aortic pressure.

Data use

Apache Systolic BP is used for the MOST score.

This is one of the values used to calculate the Mean BP for APACHE II.

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The AP Sys BP must be >=25 And <=360.