66: Blood Sampling from a Pulmonary Artery Catheter

PROCEDURE 66


Blood Sampling from a Pulmonary Artery Catheter





PREREQUISITE NURSING KNOWLEDGE




• Knowledge of sterile technique is needed.


• Knowledge of cardiovascular and pulmonary anatomy and physiology is necessary.


• Gas exchange and acid-base balance should be understood.


• Technique for specimen collection and labeling should be known.


• Principles of hemodynamic monitoring need to be understood.


• Knowledge about the care of patients with pulmonary artery catheters (see Procedure 73) and stopcock manipulation (see Procedure 76) is needed.


• The most frequent blood specimen obtained from the pulmonary artery is one for mixed venous oxygen saturation (SvO2) analysis.


• SvO2 measures the oxygen saturation of the venous blood in the pulmonary artery (see Procedure 16).


• SvO2 samples are obtained to calibrate the equipment when continuously monitoring SvO2 values.


• Routine blood sampling from the pulmonary artery catheter is not recommended because entry into the sterile system may increase the incidence of catheter-related infection.



EQUIPMENT




Additional equipment to have available as needed includes the following:


Jun 4, 2016 | Posted by in CRITICAL CARE | Comments Off on 66: Blood Sampling from a Pulmonary Artery Catheter

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