Persistent high blood pressure can lead to damage to which organ?

Persistent high blood pressure can lead to damage to which organ?

• A. Liver disease
• B. Lung disease
• C. Bone disease
• D. Kidney disease

Answer: (D)

Ongoing high blood pressure damages the kidneys because they are repeatedly exposed to elevated pressure in the renal arteries. This pressure causes changes in the small blood vessels of the kidneys (arteriolosclerosis), which narrows blood flow and leads to ischemic injury of the nephrons. Over time, this results in scarring of the glomeruli and tubulointerstitial tissue, reducing the kidneys’ filtering ability. The outcome is a fall in glomerular filtration rate and can produce protein in the urine, progressing to chronic kidney disease. Controlling blood pressure helps protect the kidneys by lowering the pressure transmitted to the glomeruli. Other organs such as the liver, lungs, or bones are not directly damaged by persistent hypertension in the same way the kidneys are.

Ongoing high blood pressure damages the kidneys because they are repeatedly exposed to elevated pressure in the renal arteries. This pressure causes changes in the small blood vessels of the kidneys (arteriolosclerosis), which narrows blood flow and leads to ischemic injury of the nephrons. Over time, this results in scarring of the glomeruli and tubulointerstitial tissue, reducing the kidneys’ filtering ability. The outcome is a fall in glomerular filtration rate and can produce protein in the urine, progressing to chronic kidney disease. Controlling blood pressure helps protect the kidneys by lowering the pressure transmitted to the glomeruli. Other organs such as the liver, lungs, or bones are not directly damaged by persistent hypertension in the same way the kidneys are.