Which condition describes tissue death due to lack of arterial blood supply?

Which condition describes tissue death due to lack of arterial blood supply?

• A. Ischemia.
• B. Infarction.
• C. Pressure ulcer.
• D. Myopathy.

Answer: (B)

Tissue death from a cut-off or severely reduced arterial blood supply is infarction. Ischemia means there isn’t enough blood flow, which can be reversible if perfusion is restored in time. But when the deprivation is prolonged, cells die and form an infarct. That makes infarction the appropriate term for tissue death due to lack of arterial supply. Pressure ulcers are injuries from prolonged pressure that can cause local ischemia, but they describe a pressure-caused injury rather than the specific process of tissue death from arterial obstruction. Myopathy is a muscle disease with various causes, not defined by blood-supply–related tissue death.

Tissue death from a cut-off or severely reduced arterial blood supply is infarction. Ischemia means there isn’t enough blood flow, which can be reversible if perfusion is restored in time. But when the deprivation is prolonged, cells die and form an infarct. That makes infarction the appropriate term for tissue death due to lack of arterial supply.

Pressure ulcers are injuries from prolonged pressure that can cause local ischemia, but they describe a pressure-caused injury rather than the specific process of tissue death from arterial obstruction. Myopathy is a muscle disease with various causes, not defined by blood-supply–related tissue death.