A nurse is providing teaching to a client who has a history of diabetes mellitus and a new prescription for hydrochlorothiazide to treat uncontrolled hypertension.
Which of the following information should the nurse include in the teaching?
Blood glucose monitoring is likely to be inaccurate while taking hydrochlorothiazide.
You might need to decrease your insulin dosage while taking hydrochlorothiazide.
Hydrochlorothiazide therapy can elevate blood glucose levels in clients who have diabetes.
Reducing sodium in your diet while taking hydrochlorothiazide will help control your blood glucose.
The Correct Answer is C
Choice A rationale
Blood glucose monitoring accuracy is generally not directly affected by hydrochlorothiazide. The medication's impact is on glucose metabolism itself, not the accuracy of the measurement device. Hydrochlorothiazide affects the pancreatic beta cells or peripheral insulin sensitivity, leading to altered glucose homeostasis, not erroneous readings from a glucometer.
Choice B rationale
Decreasing insulin dosage is generally not appropriate when taking hydrochlorothiazide. Hydrochlorothiazide, a thiazide diuretic, can induce hyperglycemia by impairing insulin secretion from the pancreatic beta cells or by reducing peripheral glucose utilization, thereby requiring an *increase* in insulin dosage to maintain glycemic control, not a decrease.
Choice C rationale
Hydrochlorothiazide therapy can elevate blood glucose levels in clients who have diabetes. This effect is attributed to the medication's ability to impair insulin secretion from pancreatic beta cells or to decrease peripheral glucose utilization, leading to insulin resistance. This necessitates careful blood glucose monitoring (normal fasting glucose <100 mg/dL).
Choice D rationale
Reducing sodium in the diet while taking hydrochlorothiazide is beneficial for blood pressure control by augmenting the diuretic's effects, but it does not directly control blood glucose levels. While a healthy diet supports overall health, the primary mechanism of glucose elevation from hydrochlorothiazide is metabolic, not sodium-related.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A rationale
Tuberculosis is a bacterial infection primarily affecting the lungs, caused by *Mycobacterium tuberculosis*. Didanosine is an antiretroviral medication, specifically a nucleoside reverse transcriptase inhibitor (NRTI), and as such, it does not possess antimicrobial activity against bacterial pathogens like *Mycobacterium tuberculosis*. Therefore, it is not indicated for treating tuberculosis.
Choice B rationale
Human immunodeficiency virus (HIV) is a retrovirus that attacks the body's immune system. Didanosine is an antiretroviral drug that inhibits the replication of HIV by interfering with the reverse transcriptase enzyme, which is crucial for the virus to convert its RNA into DNA. This mechanism of action effectively reduces the viral load and improves immune function in individuals with HIV infection.
Choice C rationale
Bacterial meningitis is an inflammation of the meninges, the membranes surrounding the brain and spinal cord, caused by various bacterial species. Didanosine is an antiviral agent specifically targeting retroviruses like HIV. It does not have any direct antibacterial properties or efficacy against the common bacterial pathogens responsible for meningitis, thus making it an inappropriate treatment.
Choice D rationale
Syphilis is a sexually transmitted infection caused by the bacterium *Treponema pallidum*. The primary treatment for syphilis is antibiotics, particularly penicillin. Didanosine, being an antiretroviral medication, does not exhibit any treponemicidal activity and is ineffective against *Treponema pallidum*. Therefore, it is not used in the treatment of syphilis.
Correct Answer is C
Explanation
Choice A rationale
Urinary retention is a potential adverse effect of opioid analgesics like meperidine due to their anticholinergic effects, which can relax the detrusor muscle and increase bladder sphincter tone. While important to monitor, it is not the most immediate life-threatening concern compared to respiratory depression.
Choice B rationale
Vomiting is a common gastrointestinal adverse effect of opioid analgesics, often due to stimulation of the chemoreceptor trigger zone in the brainstem. While distressing for the client and requiring intervention, it does not pose the immediate life-threatening risk that respiratory depression does.
Choice C rationale
Meperidine is an opioid agonist that acts on mu-opioid receptors in the central nervous system, including the brainstem respiratory centers. This can lead to dose-dependent respiratory depression by decreasing the sensitivity of these centers to carbon dioxide, making a depressed respiratory rate (normal range 12-20 breaths/min) the priority assessment for client safety.
Choice D rationale
Altered level of consciousness, such as drowsiness or sedation, is a common central nervous system effect of meperidine. While a significant finding indicating opioid effect, it is secondary in priority to respiratory depression, which directly impacts vital gas exchange and can quickly become life-threatening.
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