Venous

The effect of oxygen on blood is easy to check with modern evacuated blood collection tubes: simply draw a sample of venous blood (low on oxygen, deep red) and open the cap of the tube to see if exposure to oxygen changes it. And for comparison, mistakenly hit an artery when taking ...

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Blood is RED. Blood is red whether it is arterial or venous. Only the shade of red changes. Anesthesiologists continuously monitor the oxygen saturation of patients in the operating room. While studying anesthesiology, Anesthesia residents are required ...

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I don't understand how this topic can keep going and going. Quite clearly, if you take a venous blood sample into an evacuated tube you can see the blood is dark red. If you use the same method to draw an arterial blood sample the blood is bright red. And yes, the blood ...

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Blood is never ever blue!! Oxygenated or deoxygenated, it is NEVER blue! Just a common myth. Deoxygenated/venous blood is a dark, crimson red while oxygenated/arterial blood is a brighter red. Never black, blue, green, whatever other color. It's always red. Sometimes a different ...

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... brain stem ( adrenaline is a potent vasoconstrictor ) so, decreasing the peripheral resistance . 3- inhibition of respiratory center to decrease venous blood which returns to the heart mainly by sucction blood through the negativity of the intra-thoracic cavity during inspiration . so decreasing ...

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