A nurse is providing education to a client who has hypoglycemia. Which of the following information should the nurse include about the regulation of blood glucose levels?
The adrenal glands release epinephrine and norepinephrine to respond to low blood glucose.
The liver releases glucagon to regulate blood glucose levels.
Glycogenesis occurs in the pancreas when blood glucose levels fall.
The brain uses protein for energy if glucose levels fall too low.
The Correct Answer is A
Choice A Reason:
The adrenal glands play a crucial role in responding to low blood glucose levels by releasing epinephrine (adrenaline) and norepinephrine. These hormones help to increase blood glucose levels by stimulating glycogenolysis (the breakdown of glycogen to glucose) and gluconeogenesis (the production of glucose from non-carbohydrate sources) in the liver. This response is part of the body’s fight-or-flight mechanism, which ensures that sufficient glucose is available for immediate energy needs.
Choice B Reason:
The liver does not release glucagon; rather, it responds to glucagon, which is released by the pancreas. Glucagon stimulates the liver to convert stored glycogen into glucose (glycogenolysis) and to produce glucose from non-carbohydrate sources (gluconeogenesis). This process helps to raise blood glucose levels when they are low.
Choice C Reason:
Glycogenesis is the process of converting glucose into glycogen for storage, and it occurs primarily in the liver and muscle cells, not in the pancreas. The pancreas releases insulin to promote glycogenesis when blood glucose levels are high, but it does not perform glycogenesis itself.
Choice D Reason:
The brain primarily uses glucose for energy and does not switch to using protein unless glucose levels are extremely low and prolonged. In such cases, the brain can use ketone bodies derived from fat as an alternative energy source. Protein is not a primary energy source for the brain under normal conditions.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Choice A reason:
Injections in the thigh are absorbed more slowly compared to the abdomen. The thigh is a common site for insulin injections, but it does not provide the fastest absorption rate. The absorption rate can be influenced by physical activity, as exercise can increase blood flow to the muscles, potentially speeding up insulin absorption. However, under normal conditions, the thigh is not the fastest site for insulin absorption.
Choice B reason:
Injections in the upper arm have a moderate absorption rate. The upper arm is another common site for insulin injections, but it is not the fastest. The absorption rate from the upper arm is generally faster than the thigh but slower than the abdomen. This site can be convenient for injections, especially for those who find it difficult to reach other areas.
Choice C reason:
Injections in the buttocks have the slowest absorption rate among the common injection sites. The buttocks are less commonly used for insulin injections due to the slower absorption rate and the difficulty some individuals may have in administering injections in this area. The high fat content in the buttocks slows down the absorption of insulin.
Choice D reason:
Injections in the abdomen provide the fastest absorption rate for insulin. The abdomen is the preferred site for many people with diabetes because it has a large surface area and is easy to access. The insulin injected into the abdominal area is absorbed quickly into the bloodstream, making it the most effective site for rapid-acting insulin. This is particularly important for managing blood sugar levels around meal times.
Correct Answer is ["D"]
Explanation
Choice A Reason:
A urine specific gravity of 1.010 falls within the normal range of 1.005 to 1.0301. This value does not indicate hyponatremia. In SIADH, urine is often more concentrated due to the retention of water, leading to higher specific gravity values.
Choice B Reason:
Respiratory alkalosis is not a typical manifestation of hyponatremia. It is usually associated with conditions that cause hyperventilation, such as anxiety or high altitude. SIADH typically does not cause respiratory alkalosis.
Choice C Reason:
Diarrhea is not a direct manifestation of hyponatremia. While diarrhea can lead to electrolyte imbalances, including hyponatremia, it is not a symptom caused by SIADH5. SIADH leads to water retention and dilutional hyponatremia, not diarrhea.
Choice D Reason:
Diminished reflexes are a manifestation of hyponatremia. Low sodium levels affect neuromuscular function, leading to symptoms such as muscle weakness, cramps, and diminished reflexes7. This is a direct result of the electrolyte imbalance caused by SIADH.
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