HSC 2100 Lecture Notes - Lecture 46: Arterial Blood Gas, Cross-Matching, Emulsion

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8 Mar 2018
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Requires sample of blood from patient, which is run through an arterial blood gas analysis machine. Measures oxygen, carbon dioxide and bicarbonate ion concentration. Short storage life, constant intake of donations required. Difficulty transporting, particularly to isolated locations eg developing nations, military conflict zones. Cross matching blood types adds compatibility issues, patient blood type must be determined, eg o+, Infection risk, eg hiv virus in developing nations. Current lifespan of only 12-24 hours, compared to the 60 day lifespan of a red blood cell. Oxygen carrier being considered as artificial red-blood cell replacement in blood donations. Lipid enclosed in an emulsion for transport in blood stream. Used to increase blood volume in the short-term. Experiment testing effect of dissolved co2 on water ph. Demonstrate the acidity of dissolved co2 in water as it forms carbonic acid. Equipment: beakers, straws, distilled water, universal indicator paper.

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