The nurse is caring for a client who has been diagnosed with schizophrenia. The nurse understands that the client's condition is thought to be most likely related to an increased level of activity of what neurotransmitter?
Dopamine
Adenosine
Norepinephrine
Acetylcholine
The Correct Answer is A
Schizophrenia is believed to be related to an overactivity of the dopamine system in certain areas of the brain. Antipsychotic medications, which are the primary treatment for schizophrenia, work by blocking dopamine receptors, thereby decreasing the activity of the dopamine system. This is referred to as the dopamine hypothesis of schizophrenia.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Hydrocortisone is a synthetic form of the hormone cortisol, which is produced by the adrenal glands. Addison's disease is a condition in which the adrenal glands do not produce enough cortisol and other hormones. Treatment with hydrocortisone is a lifelong therapy that replaces the missing hormones.
One of the potential adverse effects of long-term treatment with hydrocortisone is the development of sodium depletion or hyponatremia. This occurs because hydrocortisone can increase the excretion of sodium in the urine, leading to low levels of sodium in the blood.
To mitigate this potential adverse effect, the nurse should encourage the client to increase their intake of sodium. This can be done through dietary sources such as adding more salt to their food or drinking sports drinks that contain electrolytes. The client should also be monitored closely for signs of sodium depletion, such as weakness, fatigue, and confusion.
It is also important to note that long-term treatment with hydrocortisone can increase the risk of other adverse effects, such as osteoporosis, hyperglycemia, and infection. The nurse should educate the client on these potential adverse effects and encourage them to follow their healthcare provider's instructions for monitoring and management.
Correct Answer is C
Explanation
Methadone is a synthetic opioid medication that is used to treat opioid addiction. Methadone acts as an agonist at opioid receptors in the brain and central nervous system, which helps to prevent withdrawal symptoms and reduce cravings for opioids.
Methadone is a long-acting opioid, which means that it has a slower onset and longer duration of action compared to other opioids like heroin or morphine. This allows methadone to stabilize the client's opioid receptors and prevent withdrawal symptoms for up to 24 hours or more.
Methadone is often used as a part of medication-assisted treatment (MAT) for opioid addiction. MAT combines medication, such as methadone, with counseling and behavioral therapies to provide a comprehensive approach to addiction treatment.
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