Which hormone is secreted in response to low levels of calcium in the bloodstream?

Thyroid hormone

Parathyroid hormone

Calcitonin

Vasopressin

Answer and Explanation

The Correct Answer is B

Parathyroid hormone (PTH) is a hormone produced by the parathyroid glands, which are located behind the thyroid gland in the neck. PTH regulates the calcium levels in the blood by stimulating the release of calcium from the bones, increasing the absorption of calcium from the intestines, and decreasing the excretion of calcium from the kidneys. When the calcium levels in the blood are low, PTH is secreted to raise them back to normal.

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Correct Answer is B

Explanation

Metabolic acidosis is a condition where the blood's pH is lowered due to an excess of non-volatile acids in the body, such as lactic acid, ketoacids, or ingested acids. This can occur due to diabetes, kidney failure, diarrhea, or ingestion of toxins.

The body has several mechanisms to compensate for metabolic acidosis and restore the normal pH balance. One of them is to hyperventilate, which helps to remove CO2 from the body and reduce the formation of H2CO3.

A. Cushing syndrome B. Addison disease. C. Graves’ disease D. Hashimoto thyroiditis

Correct Answer is A

Explanation

Cushing syndrome is a condition that occurs when the body is exposed to high levels of cortisol, a hormone produced by the adrenal glands. Cortisol helps regulate metabolism, blood pressure, immune function, and stress response.

However, excess cortisol can cause various problems, such as weight gain, moon face (round and puffy face), buffalo hump (fat accumulation on the upper back), purple striae (stretch marks), irregular periods, weakness, emotional changes, and easy bruising. One of the causes of Cushing syndrome is the overproduction of ACTH by the pituitary gland, which stimulates the adrenal glands to produce more cortisol.

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Which hormone is secreted in response to low levels of calcium in the bloodstream?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

Which respiratory finding is expected in an attempt to compensate for metabolic acidosis?

Correct Answer is B

Explanation

Correct Answer is A

Explanation

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How does hypoventilation affect the blood's pH?