The release of insulin is caused by:
Increased lipid breakdown
Decreased blood glucose level
Increased protein breakdown
Increased blood glucose level
The Correct Answer is D
Choice A reason: Increased lipid breakdown does not directly cause the release of insulin. Insulin is a hormone that facilitates glucose uptake by cells and helps regulate blood sugar levels. Lipid metabolism is primarily regulated by other mechanisms and hormones, such as glucagon and epinephrine.
Choice B reason: Decreased blood glucose level would not stimulate insulin release. In fact, low blood glucose levels would signal the pancreas to reduce insulin secretion. Instead, glucagon would be released to increase blood glucose levels by stimulating the conversion of glycogen to glucose in the liver.
Choice C reason: Increased protein breakdown does not directly trigger the release of insulin. Protein metabolism involves amino acids and other metabolic pathways, but insulin release is primarily regulated by blood glucose levels.
Choice D reason: The release of insulin is caused by increased blood glucose levels. When blood glucose levels rise, such as after eating a meal, the beta cells in the pancreas secrete insulin to help cells absorb glucose from the bloodstream, thereby lowering blood glucose levels and maintaining homeostasis.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A reason: Oliguria refers to the production of abnormally small amounts of urine. While it can occur in dehydration, it does not specifically indicate concentrated, dark, strong-smelling urine.
Choice B reason: Dehydration often leads to concentrated, dark, strong-smelling urine. When the body is dehydrated, the kidneys conserve water, resulting in less urine that is more concentrated with waste products, giving it a darker color and stronger smell.
Choice C reason: Increased fluid volume would typically result in dilute urine, which is pale and has a less strong odor. Therefore, it is not associated with concentrated, dark, strong-smelling urine.
Choice D reason: Urinary retention is the inability to empty the bladder completely. While it can lead to various symptoms, it is not specifically associated with concentrated, dark, strong-smelling urine.
Correct Answer is D
Explanation
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.
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