Which of the following is a primary purpose of using probiotics in clinical practice?
To cure bacterial infections.
To increase vitamin D absorption.
To restore the natural balance of bacteria in the gut.
To replace the need for dietary fiber.
The Correct Answer is C
This question addresses the clinical application of supplemental gut flora. It requires understanding the role of microbiota in maintaining intestinal homeostasis, which is necessary to recognize the therapeutic intent of probiotics in treating conditions where the normal microbial balance has been disrupted by antibiotics.
Choice A rationale
Probiotics are supplemental non-pathogenic bacteria and are not antibiotic agents. They lack the pharmacological mechanism to kill or inhibit the growth of pathogenic bacteria, and they should not be used as a treatment for acute or chronic bacterial infections.
Choice B rationale
Vitamin D absorption is facilitated by dietary fats and bile salts in the small intestine. Probiotics do not possess a physiological role in the metabolic process of vitamin D uptake, nor do they improve its bioavailability in the gastrointestinal tract.
Choice C rationale
The gut microbiome is often disrupted by antibiotics or illness. Probiotics help replenish and maintain the diversity of commensal bacteria, which compete with pathogens and support intestinal health, thereby restoring the natural ecological balance within the gastrointestinal tract.
Choice D rationale
Probiotics are not a source of indigestible plant polysaccharides. Fiber is essential for bowel health and peristalsis, and probiotics cannot substitute for its physiological function in adding bulk to the stool or promoting regular bowel movements in patients.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
This question evaluates the nurse's role in the evaluation phase of the nursing process following medication administration. It requires understanding that assessing clinical outcomes is essential to determine whether the intended therapeutic goals have been achieved or if adjustments to the plan of care are required.
Choice A rationale
While recording the dose administered is a component of accurate documentation and medication safety, evaluating the actual therapeutic response is the most important step to determine if the clinical intervention successfully met the patient's specific health needs.
Choice B rationale
The time of administration is a required element of medication documentation to ensure patient safety and adherence to a schedule. However, it does not provide any information regarding the patient's clinical response or the effectiveness of the drug.
Choice C rationale
Assessing for patient allergies is a critical safety step that must be performed prior to any medication administration. Evaluating this after administration is too late to prevent an adverse drug reaction and does not assess clinical therapeutic efficacy.
Choice D rationale
The primary purpose of medication therapy is to achieve a specific physiological change. Evaluating the therapeutic effect allows the nurse to confirm the drug's success in managing the patient's symptoms and guides future decisions regarding ongoing pharmacological treatment plans.
Correct Answer is C
Explanation
This question focuses on the pharmacological management of opioid withdrawal. It requires identifying the use of long-acting opioid agonists, which provide a controlled, stable effect on the nervous system, helping to suppress withdrawal symptoms and reduce cravings while minimizing the potential for intoxication.
Choice A rationale
Disulfiram is a medication used to treat alcohol use disorder. It works by causing severe adverse reactions if the patient consumes alcohol. It has no pharmacological role in managing opioid withdrawal symptoms and would be entirely ineffective for this purpose.
Choice B rationale
Betalol is not a recognized medication used for managing opioid withdrawal. Medications for withdrawal are selected for their ability to interact with opioid receptors or mitigate the autonomic nervous system hyper-arousal that occurs during the process of opioid cessation in patients.
Choice C rationale
Methadone is a long-acting synthetic opioid agonist used to manage opioid withdrawal and dependence. It binds to the same receptors as heroin or morphine but has a slower onset and longer duration, helping to prevent withdrawal while reducing illicit drug cravings.
Choice D rationale
Diazepam is a benzodiazepine used for anxiety or muscle spasms. While it may sometimes be used to manage some withdrawal symptoms, methadone is the specific pharmacological intervention used for opioid withdrawal because it directly targets the underlying neurochemical dependence on opioids.
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