Narrowing pulse pressure indicates which condition?

Narrowing pulse pressure indicates which condition?

• A. Hypertension
• B. Aneurysm
• C. Congestive heart failure
• D. Shock

Answer: (D)

Narrowing pulse pressure signals shock because the heart’s output drops and the body clamps down on vessels to preserve perfusion. When stroke volume falls, systolic pressure drops. At the same time, compensatory vasoconstriction keeps or raises diastolic pressure. The result is a smaller gap between systolic and diastolic pressures, i.e., a narrowed pulse pressure. For example, going from a normal 120/80 (PP ≈ 40) to something like 90/70 or 85/60 (PP ≈ 20–30) reflects this pattern and indicates compromised circulation. Hypertension typically shows a larger pulse pressure due to high systolic pressure and stiff arteries. An aneurysm isn’t defined by a narrowed pulse pressure. Congestive heart failure can alter pressures, but the characteristic narrowing with reduced perfusion is most closely associated with shock.

Narrowing pulse pressure signals shock because the heart’s output drops and the body clamps down on vessels to preserve perfusion. When stroke volume falls, systolic pressure drops. At the same time, compensatory vasoconstriction keeps or raises diastolic pressure. The result is a smaller gap between systolic and diastolic pressures, i.e., a narrowed pulse pressure. For example, going from a normal 120/80 (PP ≈ 40) to something like 90/70 or 85/60 (PP ≈ 20–30) reflects this pattern and indicates compromised circulation.

Hypertension typically shows a larger pulse pressure due to high systolic pressure and stiff arteries. An aneurysm isn’t defined by a narrowed pulse pressure. Congestive heart failure can alter pressures, but the characteristic narrowing with reduced perfusion is most closely associated with shock.