The unit used to express sodium levels in a BMP is?

The unit used to express sodium levels in a BMP is?

• A. mEq/L
• B. mg/dL
• C. IU/L
• D. g/L

Answer: (A)

Sodium levels in a BMP are expressed as milliequivalents per liter because this unit reflects the amount of electrical charge carried by the ions in solution. Sodium is a monovalent cation (Na+), so its milliequivalents per liter equal its millimoles per liter, making mEq/L a natural and conventional choice for reporting electrolyte concentrations. Using a mass-based unit like mg/dL isn’t appropriate for ions, and IU/L or g/L are used for different substances (enzymes, hormones, or larger mass measurements). Thus, the standard unit for sodium in a BMP is mEq/L.

Sodium levels in a BMP are expressed as milliequivalents per liter because this unit reflects the amount of electrical charge carried by the ions in solution. Sodium is a monovalent cation (Na+), so its milliequivalents per liter equal its millimoles per liter, making mEq/L a natural and conventional choice for reporting electrolyte concentrations. Using a mass-based unit like mg/dL isn’t appropriate for ions, and IU/L or g/L are used for different substances (enzymes, hormones, or larger mass measurements). Thus, the standard unit for sodium in a BMP is mEq/L.