Preop Carbon Dioxide (pCO2), venous

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Description

Most recent preoperative venous carbon dioxide (CO2) from 365 days prior to anesthesia start to anesthesia start

Limitation

This collation does not set “normal” ranges for the values. Valid ranges account only for data collection extremes. There is a conversion for this collation for sites that use alternate units.

Data quality is limited to individual site documentation accuracy, completeness, and variable mapping, which is performed by each site, independently. MPOG, as the coordinating center, reviews data quality at each data upload and monthly via Data Diagnostics and Case Validation tools. This review, while thorough, may not contain all data elements relevant to this phenotype and thus should be carefully reviewed by the user.

Value Type

Numeric

Enumeration

Value	Value Code	Definition

Return Columns

Name	Data Type

Granularity

Logic

Values collected under MPOG ID 5023 (POC - Blood gas - pCO2 (venous) OR (Formal lab – Blood gas - CO2 (venous))

All values expressed in mmHg

Obtain most recent (latest) value, prior to anesthesia start and within 365 days of anesthesia start. Return with number of days prior to surgery

Valid >0 mmHg and <200 mmHg
If data invalid → Output = -999
If data valid → Output = (numeric value)

General normal reference ranges:

40-50 mmHg