Discussion: Arterial blood Case

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Discussion: Arterial blood Case

Discussion: Arterial blood Case

Discussion: Arterial blood Case

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Module 1: Discussion 3. Mr. B is a 70-year-old man who developed sub sternal chest pains radiating down his left arm while at home. He was taken to the ER via ambulance. His breathing was labored, pulses rapid and weak, and his skin was cold and clammy.An ECG was done which revealed significant “Q” waves in most leads. Troponin level was elevated. Arterial blood was draw with the following results: Ph 7.22 PCO2 30 mm Hg pO2 70 mm Hg O2 sat 88% HCO3 22 meq/liter 1. Aside from the obvious diagnosis of MI, what is Mr. B’s acid base status and what caused this disturbance?

Arterial blood is the oxygenated blood in the circulatory system found in the pulmonary vein, the left chambers of the heart, and in the arteries.[1] It is bright red in color, while venous blood is dark red in color (but looks purple through the translucent skin). It is the contralateral term to venous blood.

Framed in the cardiac cycle, often historically accredited to the Wiggers diagram, arterial blood has just passed through the lungs and is ready to boost oxygen to sustain the peripheral organs. The essential difference between venous and arterial blood is the curve of the oxygen saturation of haemoglobin. The difference in the oxygen content of the blood between the arterial blood and the venous blood is known as the arteriovenous oxygen differenceThe arteriovenous oxygen difference, or a-vO2 diff, is the difference in the oxygen content of the blood between the arterial blood and the venous blood. It is an indication of how much oxygen is removed from the blood in capillaries as the blood circulates in the body. The a-vO2 diff and cardiac output are the main factors that allow variation in the body’s total oxygen consumption, and are important in measuring VO2. The a-vO2 diff is usually measured in millilitres of oxygen per 100 millilitres of blood

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