What is the major difference between the Somogyi effect and the dawn phenomenon?
One occurs between 4 a.m. and 9 a.m.
One is caused by the release of certain hormones.
One is characterized by hyperglycemia that is not triggered by overnight hypoglycemia.
One triggers insulin resistance and the release of glucose from the liver
The Correct Answer is C
Choice A reason: Both the Somogyi effect and the dawn phenomenon can occur between 4 a.m. and 9 a.m., so this is not a distinguishing factor between the two. They both involve changes in blood glucose levels during this early morning period.
Choice B reason: Both phenomena are influenced by the release of certain hormones, including growth hormone, cortisol, and catecholamines. These hormones can contribute to early morning hyperglycemia, but this alone does not differentiate the Somogyi effect from the dawn phenomenon.
Choice C reason: The Somogyi effect, also known as rebound hyperglycemia, is characterized by a period of hypoglycemia (low blood sugar) that occurs during the night, often as a result of excess insulin or other diabetic treatments. This overnight hypoglycemia triggers a counter-regulatory hormone response that leads to hyperglycemia in the early morning. In contrast, the dawn phenomenon is characterized by hyperglycemia in the early morning without preceding hypoglycemia. The dawn phenomenon is due to the natural overnight release of hormones like growth hormone and cortisol, which cause the liver to release glucose into the blood.
Choice D reason: While both effects involve hormone-mediated changes in glucose metabolism, the key difference lies in the presence or absence of preceding hypoglycemia. The dawn phenomenon does not involve insulin resistance triggered by overnight hypoglycemia, whereas the Somogyi effect does. The distinction primarily lies in the nocturnal blood sugar patterns and the body's response to them.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A reason: The most obvious and common clinical manifestation of kidney stones is severe pain, often described as excruciating and colicky. This pain is typically located in the back or side, just below the ribs, and may radiate to the lower abdomen and groin. The pain occurs as the stone moves through the urinary tract, causing irritation and blockage. This intense pain is often what prompts individuals to seek medical attention and is a hallmark symptom of kidney stones.
Choice B reason: Tachycardia, or an increased heart rate, may occur as a secondary response to the severe pain caused by kidney stones, but it is not the primary clinical manifestation. Tachycardia can be a symptom of many other conditions and is not specific to kidney stones.
Choice C reason: Hypertension, or high blood pressure, is not a direct manifestation of kidney stones. While there may be some association between kidney stone disease and hypertension, the primary symptom of kidney stones is pain, not elevated blood pressure.
Choice D reason: Edema, or swelling, is not a typical clinical manifestation of kidney stones. Edema is more commonly associated with conditions such as heart failure, kidney disease, and certain vascular disorders. Kidney stones primarily cause pain and urinary symptoms rather than generalized swelling.
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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