Serum CO2: Difference between revisions

(11 intermediate revisions by 2 users not shown)

Line 1:

*an [[:~~Category:ABG~~ | ~~ABG]] result is '''preferred''', but if no ABG available during the first 24 hours~~ in ~~ICU then select the worst '''[[serum CO2]]'''. (NOTE~~: ~~for APACHE II scoring: the serum~~ CO2 ~~replaces PH and assumes normal oxygenation)~~.~~''' Do not use venous gases.'''~~

{{Data_element

| field_name = Ap_SerCO2

| CCMDB_tab = Apache

| element_description = The patient's {{#show: Serum CO2 | ?AP phys name}} level in {{#show: Serum CO2 | ?AP phys unit}}.

| in_table = L_Log table

| data_type = number

| datafield_length = single

| program_collecting = CC

| created_raw = Raw

| data_element_sort_index = 71

}}

*IF '''no''' ~~ABG &~~ '''no''' ~~serum CO2~~ available ~~assume normal and record~~ serum CO2 ~~as '''25.0'''~~.

== Collection instruction ==

Collect Serum CO2 '''only if an [[Arterial blood gas (APACHE)]] is not available'''. An '''ABG is preferred''', but if no ABG available during the first 24 hours in ICU then collect serum CO2.

*NOTE: '''~~Serum~~ CO2''' ~~is really a measure of '''~~serum ~~HCO3-~~'''~~, also~~ '''called bicarbonate'''. The procedure used to measure HCO3- in the laboratory first converts it to CO2. In the body, 95% of the CO2 is present as HCO3-, so most of what is measured in the laboratory represents HCO3-.~~[[User:TOstryzniuk|TOstryzniuk]] 15:42, 25 May 2009 (CDT)~~

If '''no ABG and no serum CO2''' available assume normal and record serum CO2 as '''25.0'''.

''' Do not use venous gases.'''

{{APACHE physiological variable

|AP phys name=Serum CO2

|AP phys unit=mmol/L

|AP phys absMax= 440

|AP phys warnMax= 285

|AP H4= ≥52

|AP H3= >=41 and <52

|AP H1= >=32 and <41

|AP 0= >= 22 and <32

|AP L2= >=18 and <22

|AP L3= >=15 and <18

|AP L4= <15

|AP phys warnMin= 2

|AP phys absMin= 2

}}

== Background ==

For APACHE II scoring: the serum CO2 replaces [[pH]] and assumes normal oxygenation.

~~For~~ '''~~when~~''' ~~and~~ '''~~how~~''' to ~~collect Serum~~ CO2, ~~check [[General Collection Guidelines for Apache II#When to collect~~, ~~which value to use | here]]~~.

Serum CO2 is really a measure of '''serum HCO3-''', also '''called bicarbonate'''. The procedure used to measure HCO3- in the laboratory first converts it to CO2. In the body, 95% of the CO2 is present as HCO3-, so most of what is measured in the laboratory represents HCO3-.

~~For how to collect for patients who died in ICU, check [[General Collection Guidelines for Apache II#For patients who "died" in ICU|here]]~~

== Data Integrity Checks ==

*[[User:TOstryzniuk|TOstryzniuk]] 21:15, 5 March 2009 (CST)

== Related articles ==

[[Category:APACHE II Physiological Variables]]

@@ Line 1: / Line 1: @@
-*an [[:Category:ABG | ABG]] result is '''preferred''', but if no ABG available during the first 24 hours in ICU then select the worst '''[[serum CO2]]'''.  (NOTE: for APACHE II scoring: the serum CO2 replaces PH and assumes normal oxygenation).''' Do not use venous gases.'''
+{{Data_element
+| field_name = Ap_SerCO2
+| CCMDB_tab = Apache
+| element_description = The patient's {{#show: Serum CO2 | ?AP phys name}} level in {{#show: Serum CO2 | ?AP phys unit}}.
+| in_table = L_Log table
+| data_type = number
+| datafield_length = single
+| program_collecting = CC
+| created_raw = Raw
+| data_element_sort_index = 71
+}}
-*IF '''no''' ABG & '''no''' serum CO2 available assume normal and record serum CO2 as '''25.0'''.
+== Collection instruction ==
+Collect Serum CO2 '''only if an [[Arterial blood gas (APACHE)]] is not available'''. An '''ABG is preferred''', but if no ABG available during the first 24 hours in ICU then collect serum CO2.
-*NOTE: '''Serum CO2''' is really a measure of '''serum HCO3-''', also '''called bicarbonate'''. The procedure used to measure HCO3- in the laboratory first converts it to CO2. In the body, 95% of the CO2 is present as HCO3-, so most of what is measured in the laboratory represents HCO3-.[[User:TOstryzniuk|TOstryzniuk]] 15:42, 25 May 2009 (CDT)
+If '''no ABG and no serum CO2''' available assume normal and record serum CO2 as '''25.0'''.
+''' Do not use venous gases.'''
+{{APACHE physiological variable
+|AP phys name=Serum CO2
+|AP phys unit=mmol/L
+|AP phys absMax= 440
+|AP phys warnMax= 285
+|AP H4= ≥52
+|AP H3= >=41 and <52
+|AP H1= >=32 and <41
+|AP 0= >= 22 and <32
+|AP L2= >=18 and <22
+|AP L3= >=15 and <18
+|AP L4= <15
+|AP phys warnMin= 2
+|AP phys absMin= 2
+}}
+== Background ==
+For APACHE II scoring: the serum CO2 replaces [[pH]] and assumes normal oxygenation.
-For '''when''' and '''how''' to collect Serum CO2, check [[General Collection Guidelines for Apache II#When to collect, which value to use | here]].
+Serum CO2 is really a measure of '''serum HCO3-''', also '''called bicarbonate'''. The procedure used to measure HCO3- in the laboratory first converts it to CO2. In the body, 95% of the CO2 is present as HCO3-, so most of what is measured in the laboratory represents HCO3-.
-For how to collect for patients who died in ICU, check [[General Collection Guidelines for Apache II#For patients who "died" in ICU|here]]
+== Data Integrity Checks ==
+{{Data Integrity Check List}}
-*[[User:TOstryzniuk|TOstryzniuk]] 21:15, 5 March 2009 (CST)
+== Related articles ==
+{{Related Articles}}
 [[Category:APACHE II Physiological Variables]]