Mean BP: Difference between revisions

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The '''mean''' Blood Pressure~~[[BP]]~~ as collected for the APACHE score ~~is calculated as follows:~~

{{Data element

~~Mean BP = ((2x Diastolic) + Systolic) ÷ 3~~

|field_name=MBP

|CCMDB_label=<not in CCMDB>

|CCMDB_tab=Apache

|in_table=Created_Variables_CC_2021 table

|data_type=number

|datafield_length=single

|program_collecting=CC

|created_raw=Created

|data_element_sort_index=13

|element_description=Mean Blood Pressure defined by round(((2x Diastolic) + Systolic)) ÷ 3)

}}

The '''mean''' Blood Pressure as collected for the [[APACHE]] score.

*The data collector is responsible to collect the '''WORST BP''' (be ~~it high or low)during the '''first 24 hours in ICU'''.~~

Rounding may not be part of the original definition of Mean BP, but it is how we do it in order to get integers that work with the [[APACHE_Scoring_table#Physiological_Variables| scoring ranges]].

*The APACHE II score is based on the ~~worst calculated '''mean BP'''.~~

*The mean BP is automatically calculated when the CSV data from the PDA is "uploaded" to the master data repository.

*when selecting this the worst BP, ~~you must also take into account the diagnosis. For example, if a patient~~ is in ~~septic shock, you want to select the lowest BP as opposed~~ to the ~~highest BP which is artificially enhanced by inotropes~~.

== Collection Instructions for mean arterial [[BP]] ==

[[Category: APACHE II]]

Collect the blood pressure chosen as per [[Selection and timing of APACHE components]].

The APACHE II score is based on the worst calculated '''mean BP'''. There is a '''[[BP Helper button]]''' to help pick the Sys/Dia combination for the worst mean BP.

=== artificially changed BPs ===

See [[General Collection Guidelines for Apache II#When to collect]] for which value to use.

We don't want values that are changed by interventions already, for example if a patient is in septic shock, you would want the lowest BP as opposed to the highest BP that is '''artificially enhanced by inotropes'''.

=== 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.

{{APACHE physiological variable

|AP phys name=mean blood pressure

|AP phys unit=mmHG

|AP H4= >=160

|AP H3= >=130 and <160

|AP H2= >=110 and <130

|AP 0= >=70 and <110

|AP L2= >=50 and <70

|AP L4= <49

}}

== In CFE ==

The mean BP is calculated automatically in [[CFE]] by [[Created_Variables_CC_maker_2021 query]] and stored there in [[Created_Variables_CC_2021 table]].

== Related articles ==

[[Category:APACHE II Physiological Variables]]

[[Category:Blood Pressure-APACHE]]

[[Category:Created Variables]]

@@ Line 1: / Line 1: @@
-The '''mean''' Blood Pressure[[BP]] as collected for the APACHE score is calculated as follows:
+{{Data element
- Mean BP = ((2x Diastolic) + Systolic) ÷ 3
+|field_name=MBP
+|CCMDB_label=<not in CCMDB>
+|CCMDB_tab=Apache
+|in_table=Created_Variables_CC_2021 table
+|data_type=number
+|datafield_length=single
+|program_collecting=CC
+|created_raw=Created
+|data_element_sort_index=13
+|element_description=Mean Blood Pressure defined by round(((2x Diastolic) + Systolic)) ÷ 3)
+}}
+The '''mean''' Blood Pressure as collected for the [[APACHE]] score.
-*The data collector is responsible to collect the '''WORST BP''' (be it high or low)during the '''first 24 hours in ICU'''.
+Rounding may not be part of the original definition of Mean BP, but it is how we do it in order to get integers that work with the [[APACHE_Scoring_table#Physiological_Variables| scoring ranges]].
-*The APACHE II score is based on the worst calculated '''mean BP'''.
-*The mean BP is automatically calculated when the CSV data from the PDA is "uploaded" to the master data repository.
-*when selecting this the worst BP, you must also take into account the diagnosis.  For example, if a patient is in septic shock, you want to select the lowest BP as opposed to the highest BP which is artificially enhanced by inotropes.
-{{stub}}
+== Collection Instructions for mean arterial [[BP]] ==
-[[Category: APACHE II]]
+Collect the blood pressure chosen as per [[Selection and timing of APACHE components]].
+The APACHE II score is based on the worst calculated '''mean BP'''. There is a '''[[BP Helper button]]''' to help pick the Sys/Dia combination for the worst mean BP.
+=== artificially changed BPs ===
+See [[General Collection Guidelines for Apache II#When to collect]] for which value to use.
+We don't want values that are changed by interventions already, for example if a patient is in septic shock, you would want the lowest BP as opposed to the highest BP that is '''artificially enhanced by inotropes'''.
+=== 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.
+{{APACHE physiological variable
+|AP phys name=mean blood pressure
+|AP phys unit=mmHG
+|AP H4= >=160
+|AP H3= >=130 and <160
+|AP H2= >=110 and <130
+|AP 0= >=70 and <110
+|AP L2= >=50 and <70
+|AP L4= <49
+}}
+== In CFE ==
+The mean BP is calculated automatically in [[CFE]] by [[Created_Variables_CC_maker_2021 query]] and stored there in [[Created_Variables_CC_2021 table]].
+== Related articles ==
+{{Related Articles}}
+[[Category:APACHE II Physiological Variables]]
+[[Category:Blood Pressure-APACHE]]
+[[Category:Created Variables]]