Anesthesia Monitoring of Mixed Venous Saturation


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Expiration Date

28 Feb 2026

Last Reviewed

1 Mar 2023

Estimated Time To Finish

60 Minutes

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Activity Description

While oxygen saturation refers to the percentage of hemoglobin bound to oxygen within red blood cells, mixed venous oxygen saturation (SvO2) refers to the oxygen content of the blood that returns to the heart after meeting tissue needs. Therefore, mixed venous oxygen saturation is a clinically useful parameter when managing patients in the perioperative period, critical care setting, or presenting with shock pathophysiology. Monitoring mixed venous oxygen has significant value in risk stratification, prognosis, and monitoring to recognize tissue hypoxia in the critically ill. Realistically, it is one among several parameters that should be taken into account when assessing adequate tissue perfusion. This activity reviews the indications, contraindications, and methodology for measuring mixed venous saturation and highlights the role of the interprofessional team in managing patients with poor tissue perfusion.

Target Audience

This activity has been designed to meet the educational needs of physicians.

Learning Objectives

At the conclusion of this activity, the learner will be better able to:

  • Describe the technique for measuring mixed venous oxygen saturation.
  • Outline the indications for measuring mixed venous oxygen saturation.
  • Review the clinical relevance of mixed venous oxygen saturation.
  • Explain the importance of clear communication among interprofessional team members to improve care for patients with abnormal mixed venous oxygen saturation.


StatPearls requires everyone who influences the content of an educational activity to disclose relevant financial relationships with ineligible companies that have occurred within the past 24 months. All relevant conflict(s) of interest have been mitigated. Hover over contributor names for financial disclosures. None of the planners of this educational activity have any relevant financial relationships to disclose.

COMMERCIAL SUPPORT: This activity has received NO commercial support.

Continuing Education Accreditation Information

This activity has been planned and implemented in accordance with the accreditation requirements and policies of the Accreditation Council for Continuing Medical Education (ACCME) through the joint providership of the Quillen College of Medicine, East Tennessee State University, and StatPearls, LLC. The Quillen College of Medicine, East Tennessee State University is accredited by the ACCME to provide continuing medical education for physicians.

Quillen College of Medicine, East Tennessee State University designates this activity for a maximum of 1.00 AMA PRA Category 1 CreditsTM. Physicians should only claim credit commensurate with the extent of their participation in the activity.

This activity is reported to the following Maintenance of Certification (MOC) boards:
American Board of Anesthesiology
  • Cardiac Anesthesia
  • Critical Care Medicine
  • General Operative Anesthesia
  • Hospice and Palliative Medicine
  • Neuro Anesthesia
  • Obstetric Anesthesia
  • Pain Medicine
  • Pediatric Anesthesia
  • Regional Anesthesia/Acute Pain
  • Sleep Medicine
  • Thoracic Anesthesia
  • Trauma
American Board of Internal Medicine
  • Adolescent Medicine
  • Adult Congenital Heart Disease
  • Cardiovascular Disease
  • Critical Care Medicine
  • Internal Medicine
  • Pulmonary Disease
  • Sleep Medicine
American Board of Pathology
  • Cardiovascular
  • Chemical Pathology
  • Pulmonary, Mediastinum
American Board of Pediatrics
  • Pediatric Emergency Medicine
  • Pediatric Pulmonology
  • Sleep Medicine

Instructions for Credit

  1. Register for the activity and create a StatPearls login.     
  2. Review the target audience, learning objectives, and disclosure information.
  3. Study the educational content in the activity.
  4. Choose the best answer to each activity test question. To receive credit, you must pass the test questions with a minimum score of 100%.
  5. Complete the post-activity assessment.
  6. Obtain a certificate.

For information on the applicability and acceptance of continuing education credit for this activity, please consult your professional licensing board.


Faculty may discuss investigational products or off-label uses of products regulated by the US Food and Drug Administration. Readers should verify all information before employing any therapies described in this educational activity.

The information provided for this activity is for continuing education purposes only and is not meant to substitute for the independent medical/clinical judgment of a healthcare provider relative to diagnostic and treatment options of a specific patient’s medical condition. The information presented does not necessarily reflect the views of StatPearls or any commercial supporters of educational activities on StatPearls specifically disclaims responsibility for any adverse consequences resulting directly or indirectly from information in the course, for undetected error, or through a participant's misunderstanding of the content.

Cancellation Policy: Cancellations must be received in writing and a money-back guarantee is provided if not completely satisfied.

  • StatPearlsand and Quillen College of Medicine, East Tennessee State University reserve the right to cancel any course due to unforeseen circumstances. StatPearls andQuillen College of Medicine, East Tennessee State University will not be responsible for other expenses incurred by the participant in the unlikely event that the program is canceled.

Medium or Media Used:

  • Computer Requirements: Internet Access
  • E-mail Address

Equal Opportunity

  • StatPearls andQuillen College of Medicine, East Tennessee State University are Equal Opportunity/Affirmative Action/Equal Access Institutions. 


Media Usage Rights

The contributors and editors of StatPearls have attested that all associated media (images and video) have been legally cleared for use with this activity.  All copyrights are reserved.

  • Name: 'Statpearl image .png' Attribution: Contributed by Dr. Chan Lee and Dr. Vaibhav Bora M.B.B.S. , FASE


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