Final answer:
The reference range for sodium in blood plasma is generally 136.00-146.00 mM. Critical values for sodium typically fall outside this range and may indicate a severe imbalance or medical emergency.
Step-by-step explanation:
The reference range for sodium in blood plasma is generally 136.00-146.00 mM. Critical values for sodium typically fall outside this range and may indicate a severe imbalance or medical emergency. In some cases, critical values for sodium can range from 118.00-132.00 mM or 110.00-250.00 mM, depending on the specific laboratory reference values.