Platinum Airway Practice Test

Question: 1 / 400

How does the body’s pH level relate to breathing?

Increased CO2 raises pH levels

Increased CO2 reduces pH levels

The relationship between the body's pH level and breathing is a crucial aspect of respiratory physiology. When carbon dioxide (CO2) levels in the bloodstream increase, it leads to a decrease in pH, making the blood more acidic. This occurs because CO2 reacts with water in the body to form carbonic acid, which dissociates into bicarbonate and hydrogen ions, thereby increasing acidity.

Breathing plays a vital role in maintaining appropriate pH levels. When we breathe, we exhale CO2, which helps to regulate the amount of carbonic acid in the bloodstream. If breathing is insufficient or decreased, CO2 accumulates, causing pH levels to drop. Therefore, an increase in CO2 directly correlates with a reduction in pH, highlighting the importance of respiration in maintaining acid-base balance in the body.

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Lowered breathing rate increases pH levels

Breathing has no effect on pH levels

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