Hyponatremia in multiple myeloma is -
• Patients with multiple myeloma also have a decreased anion gap  because the M component is cationic, resulting in retention of chloride.
• This is often accompanied by hyponatremia that is felt to be artificial (Pseudohyponatremia) because each volume of serum has less water as a result of the increased protein.
TRUE
Relative
Absolute
Pseudo