Part F Module 16.6 Other Endocrine Glands and Hormone-Secreting Tissues Dr. Youn

Question

Part F Module 16.6 Other Endocrine Glands and Hormone-Secreting Tissues Dr. Young ordered a serum vitamin D panel and a testosterone level test in addition to a bone density scan for Felix. He was concerned that Felix's loss of muscle mass and bone density could lead to a bone fracture from even a minor misstep while walking. Dr. Young also repeated the serum chemistry panel to make sure that the previous lab results were accurate. Recall that Felix had some electrolyte abnormalities (low sodium ion and elevated potassium ion levels). Felix's blood urea nitrogen (BUN) and serum creatinine levels were also elevated, which indicated some degree of kidney insufficiency. After several liters of intravenous fluids have been infused for episodes of hypotension, Felix has become hypertensive. How does atrial natriuretic peptide (ANP) secreted by certain cardiac muscle cells work to reduce Felix's blood pressure? ANP causes vasodilation and sodium ion retention. O ANP causes vasoconstriction and natriuresis ANP causes vasodilation and natriuresis ANP causes vasoconstriction and sodium ion retention. Submit My Answers Give Up Part G-Module 16 7 Three Framnles nf Fndocrine Control nf Phueinlonical Variahles

Explanation / Answer

B. ANP causes natriuresis and vasoconstriction.

ANP reduces the expanded extracellular fluid volume and this is done by the excretion of excess sodium out and this is natriuresis and vasoconstriction accompanies the fall in blood pressure and this is particularly suitable in this case.

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