Which term describes poor blood supply to body tissue causing a lack of oxygen to that tissue?

• A. Leads
• B. Ischemia
• C. Myocardial Infarction
• D. P Wave

Answer: (B)

Ischemia describes poor blood supply to tissue, leading to a lack of oxygen in that tissue. It happens when arteries are narrowed or blocked, so blood flow and oxygen delivery fall short of the tissue’s needs. If blood flow isn’t restored, the tissue can’t function properly and may eventually die, a progression known as infarction. The other terms don’t fit this specific situation: a wave labeled as the P wave is an ECG component, and leads are ECG monitoring electrodes; a myocardial infarction is the outcome of prolonged ischemia resulting in tissue death, not the immediate lack of oxygen from reduced blood flow.