Exophthalmos may occur in children with what diagnosis?
Hypoparathyroidism.
Hyperthyroidism.
Hyperparathyroidism.
Hypothyroidism.
The Correct Answer is B
Choice A rationale:
Hypoparathyroidism is not associated with exophthalmos. Hypoparathyroidism is a condition where the parathyroid glands produce insufficient parathyroid hormone, leading to low calcium levels in the blood. This condition doesn't directly affect the thyroid gland or cause exophthalmos.
Choice B rationale:
Exophthalmos, also known as protruding or bulging eyes, is a classic symptom of hyperthyroidism. Hyperthyroidism is a condition where the thyroid gland produces excessive amounts of thyroid hormones. These elevated hormone levels can lead to a variety of symptoms, including increased metabolism, weight loss, nervousness, and protruding eyes due to inflammation of the eye muscles and tissues behind the eye.
Choice C rationale:
Hyperparathyroidism involves the overactivity of the parathyroid glands, leading to excessive production of parathyroid hormone (PTH) and elevated calcium levels in the blood. While elevated calcium levels can have various effects on the body, exophthalmos is not a typical manifestation of hyperparathyroidism. The condition is more commonly associated with bone and kidney issues.
Choice D rationale:
Hypothyroidism, the underproduction of thyroid hormones by the thyroid gland, is not linked to exophthalmos. Instead, hypothyroidism is known for causing symptoms such as fatigue, weight gain, cold intolerance, and slow heart rate. Exophthalmos is a characteristic sign of hyperthyroidism, not hypothyroidism.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["C","D"]
Explanation
The correct answers are choices C. Novolin R, and D. NovoLog.
Choice A rationale:
Novolin N is an intermediate-acting insulin, not rapid or short acting. It has a slower onset and longer duration of action, making it unsuitable for rapid blood sugar control.
Choice B rationale:
Lantus is a long-acting insulin that provides basal insulin coverage and has a relatively steady effect over 24 hours. It is not rapid or short acting and is used to provide a baseline level of insulin, not for immediate blood sugar control.
Choice C rationale:
Novolin R, also known as regular insulin, is a short-acting insulin with an onset of about 30 minutes and a peak effect around 2 to 3 hours. It is often used to cover mealtime blood sugar elevations and is suitable for short-term blood sugar control.
Choice D rationale:
NovoLog is a rapid-acting insulin analog with an onset of about 15 minutes and a peak effect within 1 to 2 hours. It is designed to mimic the body's rapid insulin release after meals, making it effective for controlling postprandial blood sugar levels.
Correct Answer is B
Explanation
The correct answer is choice B. Reduce gastric acid production.
Choice A rationale:
Preventing reflux is not the primary purpose of prescribing a histamine receptor antagonist. Histamine receptor antagonists work by reducing gastric acid production, which in turn can help alleviate symptoms of gastroesophageal reflux disease (GERD). They do not directly prevent the physical reflux of stomach contents into the esophagus.
Choice B rationale:
The primary purpose of prescribing a histamine receptor antagonist for an infant diagnosed with gastroesophageal reflux is to reduce gastric acid production. Histamine stimulates acid secretion in the stomach, and these medications (e.g., ranitidine, famotidine) block histamine receptors on stomach cells, leading to decreased acid secretion. This helps reduce the acidity of stomach contents that could contribute to esophageal irritation in GERD.
Choice C rationale:
Preventing hematemesis (vomiting blood) is not a primary action of histamine receptor antagonists. While reducing gastric acid production might indirectly help prevent complications such as bleeding due to irritation and inflammation of the esophagus, it's not the main purpose of these medications.
Choice D rationale:
Increasing gastric acid production is the opposite of the intended effect of histamine receptor antagonists. These medications are specifically used to decrease gastric acid production and provide relief from conditions where excess acid is causing problems, such as GERD.
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