Normal arterial lactate value range is within which interval?

Normal arterial lactate value range is within which interval?

• A. 0 - 0.5 mmol/L
• B. 0.5 - 1.6 mmol/L
• C. 1.6 - 3.0 mmol/L
• D. 2.0 - 4.0 mmol/L

Answer: (B)

Arterial lactate stays low in healthy individuals because production is balanced by efficient clearance, especially when oxygen delivery is good. The normal range for arterial lactate is about 0.5 to 1.6 mmol/L. This interval reflects typical physiology where lactate is a normal byproduct of metabolism but is quickly removed by the liver, heart, and kidneys. Values within this range are considered normal; levels below 0.5 are uncommon, and elevations above roughly 2 mmol/L suggest impaired perfusion or other stress on the body (such as sepsis, shock, liver dysfunction, or intense exercise). Among the given options, 0.5–1.6 mmol/L best represents the normal arterial lactate range.

Arterial lactate stays low in healthy individuals because production is balanced by efficient clearance, especially when oxygen delivery is good. The normal range for arterial lactate is about 0.5 to 1.6 mmol/L. This interval reflects typical physiology where lactate is a normal byproduct of metabolism but is quickly removed by the liver, heart, and kidneys. Values within this range are considered normal; levels below 0.5 are uncommon, and elevations above roughly 2 mmol/L suggest impaired perfusion or other stress on the body (such as sepsis, shock, liver dysfunction, or intense exercise). Among the given options, 0.5–1.6 mmol/L best represents the normal arterial lactate range.