When providing teaching for a patient who is prescribed a selective serotonin reuptake inhibitor (SSRI), which statement will the nurse include?
The SSRI will work faster than the older tricyclic antidepressants.
The SSRI will have an immediate beneficial effect on the patient's depression symptoms.
The SSRI will not work well for severe cases of depression.
The SSRI may take several weeks to have a beneficial effect.
The Correct Answer is D
Choice A rationale
Selective serotonin reuptake inhibitors (SSRIs) inhibit the reuptake of serotonin, leading to increased serotonin concentrations in the synaptic cleft. However, this process and the subsequent downregulation of presynaptic receptors require time. Tricyclic antidepressants also have a delayed onset of action, and SSRIs do not work faster; they are generally preferred due to a more favorable side effect profile.
Choice B rationale
The therapeutic effects of SSRIs are not immediate. It takes time for the central nervous system to adapt to the increased serotonin levels. This process involves changes in receptor sensitivity and gene expression. Patients must be taught that it can take several weeks for the full antidepressant effects to become apparent, and they should not be discouraged if they don't feel better right away.
Choice C rationale
SSRIs are a first-line treatment for a variety of depressive disorders, including severe depression. Their efficacy is well-established in clinical practice and they are often used in conjunction with psychotherapy. The notion that they are not effective for severe cases is inaccurate; they have demonstrated efficacy across a spectrum of depression severity.
Choice D rationale
The therapeutic effect of SSRIs is not immediate because it takes time for the brain to adapt to the increased serotonin levels in the synapse. This process involves neuroplastic changes, including the downregulation of presynaptic autoreceptors, which can take several weeks to occur. Therefore, it is crucial to inform patients that it may take 4 to 6 weeks to experience the full beneficial effect.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Choice A rationale
Taking the medication before bed is incorrect. Thyroid replacement hormones, such as levothyroxine, can increase metabolism and may cause symptoms of insomnia or restlessness if taken too close to bedtime. Therefore, patients are advised to take the medication in the morning to align with the body's natural circadian rhythm and to minimize sleep disturbances.
Choice B rationale
The full therapeutic effects of thyroid replacement medication are not seen after one week. It typically takes several weeks, often four to six, for the medication to reach a steady-state level in the blood and for the patient to experience the full benefits. The dosage may also be adjusted based on subsequent blood tests and symptom assessment.
Choice C rationale
Stopping the drug because of insomnia is incorrect. Insomnia can be a symptom of hyperthyroidism (too much medication) or other factors. The patient should not abruptly stop the medication but should consult their healthcare provider. The provider can then assess the patient's symptoms, check thyroid hormone levels, and adjust the dosage if necessary, rather than ceasing treatment entirely.
Choice D rationale
Taking the medication in the morning on an empty stomach is correct. Levothyroxine absorption is significantly reduced when taken with food, especially those containing calcium, iron, or dietary fiber. Taking it in the morning, at least 30-60 minutes before breakfast, ensures consistent and optimal absorption, which is critical for maintaining stable thyroid hormone levels.
Correct Answer is B
Explanation
Choice A rationale
Metformin is a biguanide that works by decreasing hepatic glucose production and improving insulin sensitivity in peripheral tissues. It does not stimulate insulin release from the pancreas; rather, it makes the body's existing insulin more effective.
Choice B rationale
Glyburide is a sulfonylurea oral hypoglycemic agent. Its primary mechanism of action is to stimulate the beta cells of the pancreas to release more insulin. This makes it effective in lowering blood glucose levels, but also carries a risk of hypoglycemia.
Choice C rationale
Pioglitazone is a thiazolidinedione (TZD) that acts on peroxisome proliferator-activated receptor gamma (PPAR-γ) to increase insulin sensitivity in muscle and adipose tissue. It does not stimulate the release of insulin but rather addresses insulin resistance.
Choice D rationale
Acarbose is an alpha-glucosidase inhibitor. It works in the intestine to delay the digestion of carbohydrates. This slows down glucose absorption after a meal, reducing the postprandial blood glucose spike. It does not affect insulin secretion.
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