Emergency Medical Technician (EMT) Intermediate Practice Exam

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Study for the EMT Intermediate Exam. Access detailed flashcards and multiple-choice questions that come with hints and explanations. Prepare comprehensively for your EMT certification!

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What is the minimum systolic blood pressure that is generally adequate to perfuse vital organs?

70 - 80 mm Hg
80 - 90 mm Hg
90 - 100 mm Hg
100 - 110 mm Hg

The correct answer is: 80 - 90 mm Hg

The generally adequate minimum systolic blood pressure for perfusing vital organs is commonly accepted to be in the range of 80 to 90 mm Hg. This threshold is significant because maintaining a sufficient blood pressure is crucial for ensuring that blood flow reaches the organs, thereby delivering oxygen and nutrients necessary for their functioning. When systolic blood pressure falls below 80 mm Hg, there is an increased risk that the body's tissues, particularly vital organs like the heart, brain, and kidneys, may not receive adequate perfusion. This can lead to cellular hypoxia and dysfunction, and if prolonged, may result in organ failure. In contrast, systolic blood pressures below this range may indicate significant compromise in the body's ability to maintain adequate circulation, while pressures above 90 mm Hg generally ensure better organ perfusion. Therefore, maintaining blood pressure in the range of 80 to 90 mm Hg is a priority in emergency medical care to prevent adverse outcomes related to under-perfusion of vital organs.