North Carolina EMT State Practice Exam

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Study for the North Carolina EMT Exam with our engaging resources. Utilize flashcards and multiple choice questions designed to help you grasp critical concepts with hints and explanations. Ace your examination and take the first step towards a rewarding career in emergency medical services!

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What does ischemia refer to?

Lack of oxygen in tissue/cells
Death of tissue
Coughing up blood
Difficulty breathing in flat positions

The correct answer is: Lack of oxygen in tissue/cells

Ischemia specifically refers to a condition characterized by inadequate blood supply to a tissue, which in turn results in a lack of oxygen (O2) and nutrients for the cells. This insufficient blood flow can occur due to various factors such as blockage of blood vessels or reduced blood flow due to various medical conditions. Consequently, the cells in the affected area can become damaged or dysfunctional if the ischemic condition persists. The other options represent different medical conditions or symptoms. Death of tissue is known as necrosis, coughing up blood is termed hemoptysis, and difficulty breathing while lying flat is known as orthopnea. Each choice describes a different aspect of pathophysiology, but only the first option accurately defines ischemia. Understanding this distinction is crucial for emergency responders when identifying and treating conditions related to oxygen deprivation.