Certified Dietary Manager (CDM) Practice Exam

In a blood pressure reading, which number represents diastolic pressure?

1. The top number

2. The bottom number

3. The average number

4. The peak number

The correct answer is: The bottom number

Diastolic pressure is the second number recorded in a blood pressure reading, which is commonly represented as the bottom number. It indicates the pressure in the arteries when the heart is at rest between beats, allowing the heart chambers to refill with blood. This measurement is essential because it provides insight into the resting state of the cardiovascular system and helps assess overall cardiovascular health. Understanding the significance of diastolic pressure is crucial for diagnosing and managing blood pressure-related conditions. The systolic pressure, which is the top number, measures the force of blood in the arteries when the heart beats. The average number and the peak number, while relevant in different contexts, do not specifically pertain to this standard reading of blood pressure. Recognizing diastolic pressure's role is fundamental for anyone involved in dietary management and health monitoring, especially since dietary choices can influence blood pressure levels.