Which of the following statements accurately describes the term “micturition”?
The act of experiencing total urinary incontinence.
The act of emptying the urinary bladder.
The condition of being unable to completely empty the urinary bladder.
The act of catheterizing the urinary bladder.
The Correct Answer is B
Choice A rationale:
Total urinary incontinence is the involuntary loss of all urine from the bladder. It is not synonymous with micturition, which is a controlled process of bladder emptying.
Incontinence can stem from various factors, including neurological disorders, muscle weakness, medication side effects, and structural abnormalities.
It's essential to distinguish between incontinence and micturition for accurate diagnosis and treatment.
Choice B rationale:
Micturition, also known as urination or voiding, is the physiological process of emptying the urinary bladder. It involves a coordinated interplay between the nervous system, bladder muscles, and urethral sphincters. When the bladder fills with urine, stretch receptors signal the nervous system, prompting the urge to urinate. If conditions are appropriate, the nervous system initiates a series of events:
The detrusor muscle in the bladder wall contracts.
The internal urethral sphincter relaxes, opening the pathway for urine to flow.
The external urethral sphincter, under voluntary control, relaxes to allow urine to pass through the urethra and out of the body.
Choice C rationale:
The inability to completely empty the bladder is called urinary retention.
It can result from various causes, including obstruction (e.g., enlarged prostate, urethral stricture), neurological disorders, medications, and pelvic floor dysfunction.
Urinary retention differs from micturition, as it involves incomplete bladder emptying.
Choice D rationale:
Catheterization is the process of inserting a thin, flexible tube (catheter) into the bladder to drain urine.
It's a medical procedure performed for various reasons, such as urinary retention, bladder obstruction, or to collect urine samples.
Catheterization is not a natural process of micturition, but a medical intervention.
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 A
Explanation
Choice A rationale:
Thrombophlebitis is a condition characterized by inflammation and blood clot formation within a vein. It commonly occurs in the legs, particularly after surgery or periods of prolonged immobility.
Anticoagulant medications work by preventing the formation of blood clots or by slowing their growth. They do not dissolve existing clots, but they can help prevent the clot from enlarging or breaking off and traveling to other parts of the body, such as the lungs (causing a pulmonary embolism).
Common anticoagulant medications used to treat thrombophlebitis include:
Heparin: This is a fast-acting injectable medication often used in the initial treatment of thrombophlebitis. Warfarin: This is an oral medication that takes a few days to start working but can be used for long-term treatment.
Direct oral anticoagulants (DOACs): These are newer oral medications that have a more predictable effect and fewer interactions with food and other medications compared to warfarin.
The choice of anticoagulant medication depends on several factors, including the severity of the thrombophlebitis, the patient's overall health, and any other medications they are taking.
Choice B rationale:
Antihistamine medications are used to treat allergic reactions. They do not have any effect on blood clots and would not be effective in treating thrombophlebitis.
Choice C rationale:
Antibiotic medications are used to treat infections caused by bacteria. They do not have any effect on blood clots and would not be effective in treating thrombophlebitis unless there is a concurrent bacterial infection.
Choice D rationale:
Antigens are substances that trigger an immune response in the body. They are not used to treat thrombophlebitis.
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