In hemodialysis patients, blood is accessed by the surgical attachment of an artery to a vein known as:
Catheter
Peripheral Intravenous Line
Arteriovenous Graft (AVG)
Arteriovenous Fistula (AVF)
The Correct Answer is D
Choice A reason: A catheter is a flexible tube inserted into the body to allow the passage of fluids or other substances. While catheters can be used for hemodialysis, they are typically considered temporary access points and are not created by surgically attaching an artery to a vein.
Choice B reason: A peripheral intravenous line (PIV) is a catheter placed into a small peripheral vein. PIVs are commonly used for short-term access to administer medications or fluids but are not suitable for the high flow rates needed for hemodialysis and are not surgically created by joining an artery and a vein.
Choice C reason: An arteriovenous graft (AVG) involves using a synthetic tube to connect an artery and a vein. AVGs are used for patients who cannot have an AVF due to small or weak veins. While AVGs are a viable option for hemodialysis, they are not the preferred method due to higher rates of complications like infections and clotting compared to AVFs.
Choice D reason: An arteriovenous fistula (AVF) is the preferred method of vascular access for long-term hemodialysis. It is created by surgically connecting an artery to a vein, usually in the arm. This connection allows for increased blood flow through the vein, which enlarges and strengthens it, making it suitable for repeated needle insertions during dialysis sessions. AVFs are preferred because they have lower rates of complications and provide better long-term access compared to other methods.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Choice A reason: Fasting blood glucose measures the blood sugar level after an individual has not eaten for at least 8 hours. While it provides a snapshot of current blood glucose levels, it does not reflect long-term blood glucose control.
Choice B reason: Urinalysis can detect the presence of glucose or ketones in the urine, which can indicate poor blood glucose control. However, it does not provide a direct measure of blood glucose levels over time and is not the best predictor of long-term control.
Choice C reason: Feasting (postprandial) blood glucose measures blood sugar levels after eating. It can indicate how well the body manages glucose after a meal but does not provide information about overall blood glucose control over the previous few months.
Choice D reason: Hemoglobin A1C, also known as HbA1c, measures the percentage of glycated hemoglobin in the blood. It reflects the average blood glucose levels over the past 2-3 months. This test is considered the best predictor of long-term blood glucose control because it provides a comprehensive view of blood sugar management over an extended period. The normal range for HbA1c is typically below 5.7% for individuals without diabetes.
Correct Answer is D
Explanation
Choice A reason: While certain medications can affect bladder control, they are not the primary cause of stress incontinence. Stress incontinence is specifically related to physical exertion and increased pressure on the bladder, leading to involuntary urine leakage.
Choice B reason: Hypertension, or high blood pressure, is not a direct cause of stress incontinence. Stress incontinence is related to the weakening of pelvic floor muscles and increased intra-abdominal pressure rather than blood pressure levels.
Choice C reason: A full bladder can increase the likelihood of urine leakage in individuals with stress incontinence, but it is not the underlying cause. Stress incontinence occurs due to weakened pelvic floor muscles and increased pressure during physical activities.
Choice D reason: Stress incontinence occurs due to exertional stimuli that increase intra-abdominal pressure, such as coughing, sneezing, laughing, or physical exercise. These activities cause a sudden increase in pressure on the bladder, leading to involuntary urine leakage. The condition is often associated with weakened pelvic floor muscles, which can result from factors such as childbirth, aging, or pelvic surgery.
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