A blood pH greater than 7.8 or less than 6.8 can often result in death. The human body needs to maintain a very specific blood pH for proper function. This range is between 7.35 and 7.45.
Understanding Blood pH
Normal Range
The ideal blood pH is between 7.35 and 7.45. The body has mechanisms to keep the pH within this narrow range.
Deviations
Large deviations from this normal pH range are extremely dangerous.
- Acidosis: When the blood pH drops below 7.35, it is known as acidosis.
- Alkalosis: When the blood pH rises above 7.45, it is known as alkalosis.
Deadly pH Levels
According to the reference, pH levels greater than 7.8 or less than 6.8 are often fatal. These extreme values disrupt essential cellular functions leading to organ failure and death.
Examples
- Severe Acidosis: Can occur due to conditions like diabetic ketoacidosis or severe kidney failure.
- Severe Alkalosis: Less common but can result from severe vomiting or hyperventilation.
Table of pH Effects
| pH Level | Effect |
|---|---|
| Below 6.8 | Often results in death |
| 6.8 - 7.35 | Acidosis (can be life-threatening) |
| 7.35 - 7.45 | Normal, healthy blood pH |
| 7.45 - 7.8 | Alkalosis (can be life-threatening) |
| Above 7.8 | Often results in death |
Maintaining Proper pH
The body has several systems for maintaining blood pH including:
- The respiratory system: Regulates the level of carbon dioxide in the blood.
- The renal system: Adjusts the excretion of acid and base through the kidneys.
- Chemical buffers: Bind to excess acids or bases in the blood.
The body's pH balance is a fine process and large changes can be deadly.
