Live Quiz Arena
🎁 1 Free Round Daily
⚡ Enter ArenaQuestion
← Human Body & HealthWhat happens to arterial blood pressure when a patient with hypertension exhibits increased aldosterone secretion despite normal plasma renin activity?
A)Decreased baroreceptor sensitivity develops slowly
B)Angiotensin II production increases dramatically
C)Sodium retention and blood volume expand✓
D)Potassium levels rise, inhibiting aldosterone
💡 Explanation
When hypertension is present and aldosterone secretion rises without elevated renin, the mineralocorticoid receptor activation increases sodium reabsorption in the kidneys. This causes expanded blood volume, and therefore increased blood pressure, rather than decreased baroreceptor sensitivity or altered angiotensin levels because these pathways are less directly affected.
🏆 Up to £1,000 monthly prize pool
Ready for the live challenge? Join the next global round now.
*Terms apply. Skill-based competition.
Related Questions
Browse Human Body & Health →- Why does vision become impaired in retinitis pigmentosa, a genetic disease affecting the retina?
- A long-distance runner increases their training volume rapidly. Which risk increases as bone strain increases in the tibia during this rapid adaptation?
- Why does the probability of successful implantation decrease during the luteal phase if fertilization is delayed?
- Why does aplastic anemia increase susceptibility to opportunistic infections more than iron deficiency anemia?
- A patient maintains stable weight despite erratic eating habits. Which mechanism explains how appetite regulation compensates in this scenario?
- What distinguishes the liver's role in gluconeogenesis from that of skeletal muscle during prolonged fasting?
