APACHE physiological variable collection: Difference between revisions

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*The general rule is to use the WORST value in the initial 24 hours of the ICU record (remember that ICU records begin when the patient begins being cared for by the ICU service, not when he/she arrives in the ICU)

**What we mean by "worst" is as per APACHE II rules

*If for a given parameter there are NO values during that initial 24 hours, go back prior to the start of the ICU record, and use the value closest to the start time of the ICU record (max 24 hrs prior to admission).

*If for a given parameter there are NO values during that initial 24 hours after the start of the ICU record, you can go back ''prior'' to the start of the ICU record, and use the value closest to the start time of the ICU record (but max 24 hrs prior to admission).

**If there are no values for that parameter either during or up to 24 hours prior to the start of the ICU record, APACHE assumes the value was normal -- so code the value that is the midpoint of the normal range per APACHE rules.

**If there are no values for that parameter either during the first 24 hours OR up to 24 hours prior to the start of the ICU record, APACHE assumes the value was normal -- so code the value that is the midpoint of the normal range per APACHE rules.

*In regards to values that occurred or measured during cardiopulmonary arrests:

**'''DO NOT''' use vital signs from arrests

@@ Line 13: / Line 13: @@
 *The general rule is to use the WORST value in the initial 24 hours of the ICU record (remember that ICU records begin when the patient begins being cared for by the ICU service, not when he/she arrives in the ICU)
 **What we mean by "worst" is as per APACHE II rules
-*If for a given parameter there are NO values during that initial 24 hours, go back prior to the start of the ICU record, and use the value closest to the start time of the ICU record (max 24 hrs prior to admission).
+*If for a given parameter there are NO values during that initial 24 hours after the start of the ICU record, you can go back ''prior'' to the start of the ICU record, and use the value closest to the start time of the ICU record (but max 24 hrs prior to admission).
-**If there are no values for that parameter either during or up to 24 hours prior to the start of the ICU record, APACHE assumes the value was normal -- so code the value that is the midpoint of the normal range per APACHE rules.
+**If there are no values for that parameter either during the first 24 hours OR up to 24 hours prior to the start of the ICU record, APACHE assumes the value was normal -- so code the value that is the midpoint of the normal range per APACHE rules.
 *In regards to values that occurred or measured during cardiopulmonary arrests:
 **'''DO NOT''' use vital signs from arrests