Why Does the Nurse Monitor Daily Weights Prior to the Administration

Why does the nurse monitor daily weights prior to the administration of antiemetic medications to chemotherapy patients?

A) Antiemetics are calculated according to body surface area.
B) Antiemetics are toxic,and the minimal dosage should be administered.
C) Weight loss is a common adverse effect associated with chemotherapy,and dosages may need to be readjusted.
D) Fluid overload is common,and antiemetic dosages are increased as treatment progresses.