Problem: A 38-year-old man with schizophrenia has had numerous hospitalizations and many trials with various antipsychotic medications. He continues to be symptomatic, with derogatory auditory hallucinations, paranoia regarding his neighbors, and poor self-care. He denies suicidal or homicidal ideation. He has recently been started on clozapine (Clozaril), with significant improvement in his condition. He does not drink alcohol or use illicit drugs, and he denies additional medical history. Which of the following blood tests will require frequent, regular monitoring for this patient? Need Assignment Help? A. Urinalysis B. Calcium level C. Complete blood count with differential D. Thyroid function tests E. Electrolytes