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 A
Explanation
Choice A reason: Peristalsis is the process by which smooth muscle fibers in the walls of the ureters contract rhythmically to propel urine from the kidneys to the bladder. This coordinated movement involves a wave-like series of contractions and relaxations, ensuring that urine is efficiently transported along the ureters, even against gravity. Peristalsis is a crucial mechanism for maintaining the flow of urine and preventing backflow into the kidneys.
Choice B reason: Mass movement refers to strong, coordinated contractions in the colon that move fecal matter toward the rectum. This process is associated with the large intestine and is not involved in the movement of urine through the ureters.
Choice C reason: Segmental contractions are localized contractions in the intestines that help mix and propel intestinal contents. They are not the primary mechanism for moving urine through the ureters.
Choice D reason: Tetany refers to involuntary muscle spasms or contractions, usually caused by low calcium levels or other electrolyte imbalances. It is not a normal physiological process for propelling urine through the ureters.
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.
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