A client is being prescribed a central nervous system stimulant. Which will haw lowest risk of abuse and dependence?
Dextroamphetamine
Dexmethylphenidate
Dextroamphetamine and amphetamine
Atomoxetme
The Correct Answer is D
Atomoxetine is a non-stimulant medication that is used to treat attentiondeficit/hyperactivity disorder (ADHD). Unlike central nervous system (CNS) stimulants such as dextroamphetamine, dexmethylphenidate, and dextroamphetamine/amphetamine, atomoxetine does not have a high risk of abuse or dependence.
CNS stimulants like dextroamphetamine, dexmethylphenidate, and dextroamphetamine/amphetamine can be effective in treating ADHD symptoms, but they can also be abused and lead to dependence. These medications work by increasing levels of dopamine and norepinephrine in the brain, which can improve focus and attention. However, they also have the potential to be misused, particularly by individuals seeking a "high" or increased alertness.
In contrast, atomoxetine works by selectively inhibiting the reuptake of norepinephrine in the brain. This mechanism of action does not produce the same effects on dopamine levels as CNS stimulants, and it is not associated with a high risk of abuse or dependence. However, it may take several weeks for the full therapeutic effects of atomoxetine to be seen, and it may not be as effective as CNS stimulants for some individuals with ADHD.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
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.
Correct Answer is A
Explanation
A. An increase in serum lactate – This is a critical laboratory value that can indicate lactic acidosis, a serious side effect associated with metformin, especially in older adults or those with renal impairment. An increase in serum lactate necessitates discontinuation of the medication.
B. A decrease in hemoglobin and hematocrit – While this change may indicate anemia, it is not directly associated with the need to discontinue metformin. Further evaluation of the cause of anemia would be necessary.
C. An increase in white blood cells – This could indicate an infection or inflammatory process but does not specifically necessitate the discontinuation of metformin.
D. A decrease in potassium accompanied by an increase in sodium – While electrolyte imbalances should be monitored, this change does not directly indicate that metformin should be discontinued.
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