which of the following decreases blood pressure. a drug that:a) causes vasoconstrictionb) increases degradation of bradykininc) promotes aldosterone productiond) inhibits conversion of angiotensin I to II2 / 2
Question
which of the following decreases blood pressure. a drug that:a) causes vasoconstrictionb) increases degradation of bradykininc) promotes aldosterone productiond) inhibits conversion of angiotensin I to II2 / 2
Solution
The answer is d) inhibits conversion of angiotensin I to II.
Here's why:
a) A drug that causes vasoconstriction would increase blood pressure, not decrease it. Vasoconstriction is the narrowing of the blood vessels, which increases blood pressure.
b) Increasing the degradation of bradykinin would also likely increase blood pressure. Bradykinin is a peptide that helps to lower blood pressure by dilating blood vessels.
c) Promoting aldosterone production would also likely increase blood pressure. Aldosterone is a hormone that increases the reabsorption of sodium and water in the kidneys, which increases blood volume and therefore blood pressure.
d) Inhibiting the conversion of angiotensin I to II would decrease blood pressure. Angiotensin II is a potent vasoconstrictor - it narrows the blood vessels and therefore increases blood pressure. By inhibiting the conversion of angiotensin I to II, this drug would decrease the amount of angiotensin II, leading to a decrease in blood pressure.
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