Correlation of Arterial Blood Gas (ABG) and Venous Blood Gas (VBG) in the Undifferentiated Critically Ill Patient

Correlation of Arterial Blood Gas (ABG) and Venous Blood Gas (VBG) in the Undifferentiated Critically Ill Patient

The primary objective of this study is to identify a correlation between the pH and pCO2 in arterial and venous blood. The secondary objectives include a correlation of pulse oximetry and arterial pO2 along with subgroup analyses of specific patient populations such as congestive heart failure, chronic obstructive pulmonary disease, diabetic ketoacidosis, pneumonia, overdose, and trauma.

Inclusion Criteria:

• Age 18 years or older Signed consent Patient in the ED or ICU Have a disease state that necessitates obtaining an ABG Have a disease state that necessitates pulse oximetry monitoring

Exclusion Criteria:

• Any contraindication to arterial or venous blood draw Prior enrollment in the study during the current hospitalization Pregnancy Prisoners