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https://litfl.com/oxygen-extraction-ratio/
Apr 09, 2019 · Oxygen extraction ratio (O2ER) is the ratio of oxygen consumption (VO2) to oxygen delivery (DO2) global oxygen delivery (DO2) is the total amount of oxygen delivered to the tissues per minute, irrespective of the distribution of blood flow; oxygen consumption (VO2) is the total amount of oxygen removed from the blood due to tissue oxidative ...
http://www.openanesthesia.org/Peripheral_oxygen_delivery/
Oxygen Delivery. Therefore, oxygen delivery can be calculated: DO2 = CaO2 x CO. Oxygen Content. Oxygen content can be calculated as: CO2 = (1.39 x Hb x O2Sat/100) + (0.003 x PO2) Oxygen Consumption. Oxygen consumption can be calculated by the Fick principle as the difference between arterial and venous oxygen content: VO2 = CO x (CaO2 – CvO2)
https://www.uptodate.com/contents/oxygen-delivery-and-consumption#!
The oxygen is then transported from the lungs to the peripheral tissues, where it is removed from the blood and used to fuel aerobic cellular metabolism. This process can be conceptualized as three steps: oxygenation, oxygen delivery, and oxygen consumption. In this topic review, oxygen delivery and consumption are reviewed.
https://www.youtube.com/watch?v=E2dEts5y79M
Nov 01, 2013 · When to use SvO2 monitoring. Avoiding Intubation – Role of NIV and High-Flow Oxygen Systems – William Bender, MD - Duration: 22:34. Critical Care Summit 8,185 viewsAuthor: David Woodruff
https://www.openanesthesia.org/o2_delivery_vs-_pao2/
O2 delivery vs. PaO2. Definition. Oxygen delivery is defined as the amount of oxygen delivered to the capillaries per minute. It is calculated by the following formula: DO2=CO x CaO2 (mL/min/m2) So oxygen delivery is dependent on cardiac output as well as the arterial oxygen content.
https://www.youtube.com/watch?v=mjMPXDUYyqA
Dec 17, 2012 · Understand the Delivery of Oxygen to Tissues with this clear explanation from Dr. Roger Seheult of http://www.medcram.com. Speaker: Roger Seheult, MD Clinica...Author: MedCram - Medical Lectures Explained CLEARLY
https://www.healthcare.uiowa.edu/Programs/Perfusion/perfcalc.htm
Oxygen Delivery and Consumption NaHCO3 Needed for BE (0) meq Patient Hgb g/dl SVR Calculation PaO2 mmHg PvO2 mmHg MAP mmHg Sa02 sat. CVP mmHg SvO2 sat. Flow/C.O. Lpm Flow (C.O.) Lpm SVR dyne*sec/cm^5 DO2 ml/min. VO2 ml/min.
https://www.ncbi.nlm.nih.gov/pubmed/10752748
It is still unclear whether these patients exhibit delivery-dependent oxygen consumption (VO2) during the shock phase. The goal of this study was to evaluate the existence of oxygen supply dependency and to determine critical levels of DO2 in patients with burns.Author: Holm C, Melcer B, Hörbrand F, von Donnersmarck Gh, Mühlbauer W
https://reference.medscape.com/medline/abstract/8792065
This article discusses the oxygen consumption (VO2) and delivery (DO2) relationship as it pertains to animal models of sepsis and human sepsis syndrome and septic shock. Pathologic dependence of VO2 on DO2 is not present in resuscitated patients who have sepsis syndrome and septic shock.
https://academic.oup.com/bjaed/article/16/10/341/2288629
May 17, 2016 · Oxygen delivery (oxygen flux) and oxygen consumption are global measures. At tissue level, blood flow is denoted as Q, [O 2] In describes the oxygen content of the afferent blood (analogous to Ca O 2 globally), and [O 2] Out describes the oxygen content …Author: J-Oc Dunn, MG Mythen, MP Grocott, MP Grocott
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