Following a winter power outage, a client who had been using a home gasoline generator began to experience dizziness and headaches and was diagnosed with carbon monoxide poisoning
What is the goal of hyperbaric oxygen treatment for carbon monoxide poisoning?
A)
To increase the amount of oxygen carried in the dissolved state
B)
To increase the production of unbound hemoglobin
C)
To stimulate the release of oxygen at the capillaries
D)
To remove bound CO from hemoglobin
Ans:
A
Feedback:
While increased alveolar PO2 improves the oxygen saturation of hemoglobin, carbon monoxide occupies the hemoglobin sites usually available for oxygen. With much of the blood composed, temporarily, of carboxyhemoglobin, it is necessary to rely upon alternate means to deliver oxygen to the tissues. Plasma's normally low carrying capacity for dissolved oxygen can be increased by administration of 100% oxygen in the high atmospheric pressure of a hyperbaric chamber.
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