When Is the Carbonic Acid-Bicarbonate Buffer System Ineffective Against Drastic

question 46

Multiple Choice

When is the carbonic acid-bicarbonate buffer system ineffective against drastic pH changes in the body?

• A) when there is an excess of CO₂ in the blood
• B) when there is an excess of O₂ in the blood
• C) during carbon monoxide poisoning
• D) during atelectasis
• E) when air enters the pleural cavity of the lungs

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Definitions:

Energized

A term used to describe when an electrical component or circuit has voltage applied and is functioning or ready to function.

Holding Contacts

Electrical contacts designed to maintain power in a circuit after an initial actuation, typically found in relays and starters to keep circuits closed.

Redundant Electrical Path

An additional pathway in an electrical circuit designed to ensure continuous operation even if one path fails.

Holding Contacts

Electrical contacts in a relay or switch that maintain their state until altered by a specific action, used to hold circuits closed or open.