Varcarolis chapter 3 Question and answer rated A+ 2023

Varcarolis chapter 3 Question and answer rated A+ 20231. A patient asks, "What are neurotransmitters? My doctor said mine are imbalanced." Select the nurse's best response. a. "How do you feel about having imbalanced neurotransmitters?" b. "Neurotransmitters protect us from harmful effects of free radicals." c. "Neurotransmitters are substances we consume that influence memory and mood." d. "Neurotransmitters are natural chemicals that pass messages between brain cells." d. "Neurotransmitters are natural chemicals that pass messages between brain cells." 2. The parent of an adolescent diagnosed with schizophrenia asks the nurse, "My child's doctor ordered a PET. What kind of test is that?" Select the nurse's best reply. a. "This test uses a magnetic field and gamma waves to identify problem areas in the brain. Does your teenager have any metal implants?" b. "PET means positron-emission tomography. It is a special type of scan that shows blood flow and activity in the brain." c. "A PET scan passes an electrical current through the brain and shows brain-wave activity. It can help diagnose seizures." d. "It's a special x-ray that shows structures of the brain and whether there has ever been a brain injury." b. "PET means positron-emission tomography. It is a special type of scan that shows blood flow and activity in the brain." 3. A patient with a long history of hypertension and diabetes now develops confusion. The health care provider wants to make a differential diagnosis between Alzheimer's disease and multiple infarcts. Which diagnostic procedure should the nurse expect to prepare the patient for first? a. Skull x-rays b. CT scan c. PET d. Single photon emission computed tomography (SPECT) b. CT scan A patient's history shows drinking 4 to 6 L of fluid and eating more than 6,000 calories per day. Which part of the central nervous system is most likely dysfunctional for this patient? a. Amygdala b. Parietal lobe c. Hippocampus d. Hypothalamus d. Hypothalamus The nurse prepares to assess a patient diagnosed with major depressive disorder for disturbances in circadian rhythms. Which question should the nurse ask this patient? a. "Have you ever seen or heard things that others do not?" b. "What are your worst and best times of the day?" c. "How would you describe your thinking?" d. "Do you think your memory is failing?" b. "What are your worst and best times of the day?" The nurse administers a medication that potentiates the action of ã-aminobutyric acid (GABA). Which effect would be expected? a. Reduced anxiety b. Improved memory c. More organized thinking d. Fewer sensory perceptual alterations a. Reduced anxiety A nurse would anticipate that treatment for a patient with memory difficulties might include medications designed to a. inhibit GABA. b. prevent destruction of acetylcholine. c. reduce serotonin metabolism. d. increase dopamine activity. b. prevent destruction of acetylcholine. A patient has disorganized thinking associated with schizophrenia. Neuroimaging would likely show dysfunction in which part of the brain? a. Hippocampus b. Frontal lobe c. Cerebellum d. Brainstem ... The nurse should assess a patient taking a drug with anticholinergic properties for inhibited function of the a. parasympathetic nervous system. b. sympathetic nervous system. c. reticular activating system. d. medulla oblongata. a. parasympathetic nervous system. The therapeutic action of neurotransmitter inhibitors that block reuptake cause a. decreased concentration of the blocked neurotransmitter in the central nervous system. b. increased concentration of the blocked neurotransmitter in the synaptic gap. c. destruction of receptor sites specific to the blocked neurotransmitter. d. limbic system stimulation. b. increased concentration of the blocked neurotransmitter in the synaptic gap.