[Answered]: A client comes to the clinic for serum lithium levels

A client comes to the clinic for serum lithium levels. The level is subtherapeutic at 0.1 mEq/L (therapeutic range: 0.6-1.2 mEq/L). Which is the likely cause of the low lithium level? Select all that apply. The dosage needs to be decreased. The dosage may need to be increased. The client has a low serum sodium level. The client may not be taking their medication as directed. The client may be taking medication that interacts with this drug.