A patient asks a nurse, "What are neurotransmitters? My doctor says mine are out of balance." The best reply would be: a. "You must feel relieved to know that your problem has a physical basis." b. "Neurotransmitters are chemicals that pass messages between brain cells." c. "It is a high-level concept to explain. You should ask the doctor to tell you more." d. "Neurotransmitters are substances we eat daily that influence memory and mood." - B Stating that neurotransmitters are chemicals that pass messages between brain cells gives the most accurate information. Neurotransmitters are messengers in the central nervous system. They are released from the axon terminal, diffuse across the synapse, and attach to specialized receptors on the postsynaptic neuron. The incorrect responses do not answer the patient's question, are demeaning, and provide untrue and misleading information. The parent of an adolescent with schizophrenia asks a nurse, "My child's doctor ordered a positron-emission tomography (PET) scan. What is that?" Select the nurse's best reply. a. "PET uses a magnetic field and gamma waves to identify problems areas in the brain. Does your teenager have any metal implants?" b. "It's a special type of x-ray image that shows structures of the brain and whether a brain injury has ever occurred." c. "PET is a scan that passes an electrical current through the brain and shows brain wave activity. PET can help diagnose seizures." d. "PET is a special scan that shows blood flow and activity in the brain." - D The parent is seeking information about PET scans. It is important to use terms the parent can