An elderly resident of a long-term care facility frequently wakes up to urinate during the night. What physiological change associated with normal aging could be the cause of this?
Reduced kidney ability to concentrate urine.
Lower fluid intake during daytime hours.
Enhanced bladder contractility leading to urinary stasis.
Increased bladder muscle tone leading to frequent urination.
The Correct Answer is A
Choice A rationale:
Reduced kidney ability to concentrate urine is a common physiological change associated with normal aging. This is due to several factors, including:
Decreased glomerular filtration rate (GFR): The kidneys filter waste products from the blood. As we age, the number of functioning nephrons (filtering units) in the kidneys decreases, leading to a decline in GFR. This means that the kidneys are less able to filter waste products and concentrate urine.
Decreased renal blood flow: Blood flow to the kidneys also decreases with age. This further reduces the kidneys' ability to filter waste products and concentrate urine.
Decreased tubular function: The tubules in the kidneys are responsible for reabsorbing water and electrolytes from the urine. As we age, the function of the tubules also declines, leading to a decrease in the ability to concentrate urine.
As a result of these changes, older adults often produce more urine, even at night. This can lead to nocturia, which is the need to wake up to urinate two or more times per night.
Choice B rationale:
Lower fluid intake during daytime hours can also contribute to nocturia, but it is not a direct physiological change associated with normal aging. Older adults may drink less fluids during the day for a variety of reasons, such as decreased thirst sensation, fear of incontinence, or limited access to fluids. However, even if they maintain adequate fluid intake during the day, they may still experience nocturia due to the reduced ability of their kidneys to concentrate urine.
Choice C rationale:
Enhanced bladder contractility leading to urinary stasis is not a typical physiological change associated with normal aging. In fact, bladder contractility often decreases with age, which can lead to difficulty emptying the bladder completely. This can contribute to urinary frequency and urgency, but it is not typically a cause of nocturia.
Choice D rationale:
Increased bladder muscle tone leading to frequent urination is also not a typical physiological change associated with normal aging. Bladder muscle tone may decrease with age, which can lead to difficulty emptying the bladder completely. However, it is not typically a cause of nocturia.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A rationale:
Brown or black urine is not a typical observation associated with Levodopa use. It can indicate other potential causes, such as: Dehydration
Liver disease
Rhabdomyolysis (muscle breakdown)
Certain medications like metronidazole or iron supplements
Hematuria (blood in the urine)
It's essential to rule out these conditions if brown or black urine is observed.
Choice C rationale:
Green or blue-green urine is also not common with Levodopa. It can be caused by:
Medications like amitriptyline, indomethacin, propofol, or methylene blue
Certain food dyes
Urinary tract infections caused by Pseudomonas bacteria
Familial benign hypercalcemia (a rare genetic condition)
Choice D rationale:
Blood-tinged urine (hematuria) is not a direct effect of Levodopa. It can signal underlying urinary tract issues, such as: Infections
Kidney stones
Bladder or kidney tumors
Trauma to the urinary tract
Strenuous exercise
Choice B rationale:
Orange or orange-red urine is the most common observation in patients taking Levodopa. This discoloration is due to: Breakdown of Levodopa into dopamine and other metabolites
These metabolites can impart an orange or reddish hue to the urine
The color intensity may vary depending on dosage and individual metabolism
It's generally harmless and doesn't require medical intervention
However, it's essential to inform healthcare providers about any urine color changes to ensure proper monitoring and rule out other potential causes.
Correct Answer is D
Explanation
Rationale for Choice A:
While it's true that a urinalysis can confirm the eradication of bacteria, it's not routinely recommended in uncomplicated UTIs when symptoms have resolved.
Conducting a urinalysis at this point could potentially lead to unnecessary healthcare visits and costs.
It's important to prioritize patient adherence to the full course of antibiotics, as this is the most effective way to prevent recurrence of infection.
Rationale for Choice B:
This response is inaccurate and could discourage the patient from completing the treatment.
It's essential for the nurse to convey that the treatment is likely working, even though the patient is feeling better. Reinforcing the importance of completing the full course of antibiotics is crucial for optimal outcomes. Rationale for Choice C:
Stopping the antibiotic prematurely, even if symptoms have improved, can lead to:
Increased risk of recurrent UTI
Development of antibiotic resistance
Prolonged or more severe infections in the future
Completing the full course of antibiotics ensures that all bacteria are eradicated, reducing the likelihood of these complications.
Rationale for Choice D:
This response correctly emphasizes the importance of completing the full course of antibiotics, even when symptoms have resolved.
It addresses the patient's concern while providing accurate and essential information.
Key points to highlight in this response include:
The need to eliminate all bacteria, including those that may not be causing active symptoms
The prevention of antibiotic resistance
The reduction of the risk of recurrent UTIs
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