New York State Emergency Medical Technician (EMT) Practice Exam

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The average adult has approximately how much blood in their body?

The correct answer is: 6L

The average adult typically has about 5 to 6 liters of blood in their body. This volume can vary based on factors such as body size, sex, and overall health, but 5 liters is a common reference point. Blood is vital for transporting oxygen, nutrients, and waste products, and it plays a crucial role in maintaining homeostasis within the body. Options indicating less than 5 liters do not accurately reflect the average blood volume in an adult. Thus, while some specific individuals may have slightly lower or higher blood volumes, the general consensus and medical literature support the estimate of around 5 to 6 liters for an average adult.