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https://www.openanesthesia.org/o2_delivery_vs-_pao2/
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.
http://www.learnhemodynamics.com/hemo/oxygen.htm
If we know the cardiac output and the patient's haemoglobin level and oxygen saturation, then we can calculate one further critical value in hemodynamics - the oxygen delivery to the body or DO2. One gramme of haemoglobin can carry 1.34 ml of oxygen as oxyhaemoglobin.
https://www.openanesthesia.org/peripheral_oxygen_delivery/
If cardiac output is 5 L/min, then total oxygen delivery is 1057 mL/min. This blood then travels to the periphery where the PO2 is 40 mmHg. From the oxyhemoglobin dissociation curve, it is evident that a PO2 of 40 is equal to an oxygen saturation of 75%. Using the equation for oxygen content again, the amount of oxygen in venous blood is 15.76 mL/dL.
https://www.timeofcare.com/oxygen-delivery-methods/
The formula is FIO2 = 20% + (4 × oxygen liter flow). The FIO2 is influenced by RR, tidal volume and pathophysiology. The slower the inspiratory flow the higher the FIO2.
https://www.straightanursingstudent.com/oxygen-delivery-systems/
Description: The HFNC is an oxygen-delivery system that includes an air/oxygen blender, humidifier, heater and nasal cannula to deliver precise and very high flow oxygen to your patient; Flow rate: up to 60L/minute; FiO2: 21 to 100%
https://www.uptodate.com/contents/oxygen-delivery-and-consumption
Oxygen content — The arterial oxygen content (CaO 2) is the amount of oxygen bound to hemoglobin plus the amount of oxygen dissolved in arterial blood: CaO 2 (mL O 2 /dL) = (1.34 x hemoglobin concentration x SaO 2 ) + (0.0031 x PaO 2 )
https://academic.oup.com/bjaed/article/16/10/341/2288629
May 17, 2016 · Global oxygen delivery describes the amount of oxygen delivered to the tissues in each minute and is a product of the cardiac output and arterial oxygen content. Thus: Oxygen delivery = cardiac output × arterial oxygen content D O 2 = CO × Ca O 2Author: J-Oc Dunn, MG Mythen, MP Grocott, MP Grocott
https://healthfully.com/calculate-amount-according-liter-flow-8673605.html
Jul 27, 2017 · The amount of oxygen delivered will be 40 to 60 percent. The flow meter should never be set less than 5 liters with this type of mask. Observe that a partial rebreather oxygen mask will deliver 35 to 60 percent of oxygen. The flow meter will be set between 8 and 15 liters.
http://www.oxfordmedicaleducation.com/prescribing/oxygen-delivery/
The percentage of oxygen inspired depends on the flow rate and the delivery device; The flow rate can be set on the wall tap: it varies from 0 – 15L per minute; Delivery devices work with different flow rates. They include… Nasal cannulae. Deliver 24-30% oxygen; Flow rate 1-4L/min (4L will dry the nose, 2L is more comfortable)
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