What explains the cause of dwarfism?
A deficit of parathyroid hormone
Excessive level of insulin
Excessive level of somatotropin (GH)
A deficit of somatotropin (GH)
The Correct Answer is D
Choice A rationale
A deficit of parathyroid hormone would not cause dwarfism, but it could lead to hypoparathyroidism, which can cause muscle cramps or spasms due to low levels of calcium in the blood.
Choice B rationale
Excessive levels of insulin could lead to hypoglycemia (low blood sugar), not dwarfism.
Choice C rationale
Excessive levels of somatotropin (GH) would not cause dwarfism. Instead, it could lead to gigantism in children or acromegaly in adults.
Choice D rationale
A deficit of somatotropin (GH) could indeed cause dwarfism. Somatotropin, also known as growth hormone, is essential for growth and development. A deficiency can result in short stature.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Choice A rationale
Dwarfism is a condition characterized by short stature, often due to a genetic or medical condition, not related to calcium levels.
Choice B rationale
Hypoparathyroidism would most likely lead to hypocalcemia (low calcium levels), not hypercalcemia.
Choice C rationale
Gigantism is caused by an overproduction of growth hormone during childhood before the bone growth plates have closed, not related to calcium levels.
Choice D rationale
Hyperparathyroidism, a condition in which the parathyroid glands produce too much parathyroid hormone, can lead to hypercalcemia (high calcium levels)2.
Correct Answer is D
Explanation
Choice A rationale
Metrorrhagia refers to irregular, often heavy menstrual bleeding that occurs at irregular intervals.
Choice B rationale
Hypomenorrhea refers to unusually light menstrual bleeding.
Choice C rationale
Polymenorhagia refers to frequent, but not necessarily heavy, menstrual periods.
Choice D rationale
Amenorrhea is the absence or suppression of menstruation in which a woman experiences three or more missed menses.
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