The nurse is caring for a pediatric client with a new onset of hypercalcemia.
What condition would be most likely to cause this altered serum calcium level?
Liver failure.
Radiation injury.
Malignancy.
Hypothyroidism.
The Correct Answer is C
Hypercalcemia is a condition caused by having too much calcium in the blood, which can affect the function of nerves, muscles, kidneys and heart. Hypercalcemia can occur in children due to various causes, both acquired and genetic. One of the most common causes of hypercalcemia in children is cancer, especially cancers that affect the bones or produce substances that mimic parathyroid hormone (PTH), which regulates calcium levels.
Choice A is wrong because liver failure does not directly cause hypercalcemia, although it can affect vitamin D metabolism and calcium absorption.
Choice B is wrong because radiation injury does not cause hypercalcemia, unless it damages the parathyroid glands or causes bone destruction.
Choice D is wrong because hypothyroidism does not cause hypercalcemia, although it can affect bone turnover and calcium excretion.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
The CTZ has to be stimulated in order for vomiting to occur. The CTZ is located in the area postrema of the medulla oblongata and receives input from various sources, such as the blood, the vestibular system, and the gastrointestinal tract.
Choice A is wrong because the limbic system involves emotion, not vomiting or other forms of GI function.
Choice B is wrong because the hypothalamus regulates various functions such as body temperature, hunger, thirst, and circadian rhythms, but not vomiting.
Choice D is wrong because the medulla oblongata is responsible for autonomic functioning such as ventilation, cardiac conduction, and vomiting, but it is not the site of stimulation for vomiting.
The medulla oblongata contains the vomiting center, which receives signals from the CTZ and other sources and initiates the act of vomiting.
Correct Answer is C
Explanation
This strategy can help the client read the numbers on the syringe and prepare the correct dose of insulin. A magnifying glass is also an affordable and accessible tool for the client.
Choice A is wrong because preparing a week’s supply of syringes and refrigerating them can affect the potency and sterility of insulin.
It can also increase the risk of errors or confusion.
Choice B is wrong because asking a neighbor to come over every day to prepare the medication can compromise the client’s privacy and independence.
It can also be unreliable and inconvenient for both parties.
Choice D is wrong because changing the client to oral antidiabetics is not possible for type 1 diabetes.
People with type 1 diabetes need to take insulin for life because their pancreas cannot make insulin.
Oral antidiabetics are only effective for people with type 2 diabetes who have functioning pancreatic beta cells
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