Agreement Between Venous and Arterial Blood Gas Measurements in the Intensive Care Unit

Olive View-UCLA Education & Research Institute40 enrolled

Overview

The purpose of this study is to examine the agreement between venous blood gas and arterial blood gas measurements in patients in the Intensive Care Unit.

Venous blood gas analysis may be an alternative to arterial blood gas analysis for acid-base status, reducing the need for frequent invasive arterial sampling. The objective of this study is to examine the agreement between ABG and VBG samples for all commonly used parameters (pH, pCO2 and bicarbonate) in a pathologically diverse ICU patient population, specifically analyzing multiple paired arterial and venous samples from each patient.

Study Type

INTERVENTIONAL

Allocation

Purpose

DIAGNOSTIC

Masking

NONE

Enrollment

Conditions

Acid-Base Balance

Interventions

Venous blood gas analysisPROCEDURE

When an ABG is deemed to be necessary as part of ICU management, a central venous sample will also be obtained with minimum delay (always \< 2 minutes) between the samples. The samples will be analyzed by a blood gas analyzer as quickly as possible.

Eligibility

Sex: ALLMin age: 18 Years

Medical Language ↔ Plain English

Inclusion Criteria: * Adult patients 18 years or older * Admitted to the Intensive Care Unit (ICU) * Determined by their treating clinicians to require both a central venous line and arterial line Exclusion Criteria: * None

Outcomes

Primary Outcomes

Agreement between venous and arterial blood gas measurements of pH, pCO2 and bicarbonate

Time frame: Duration of Intensive Care Unit Admission

Data from ClinicalTrials.gov

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