What is the normal resting heart rate for an adult?

• A. 50-70
• B. 70-90
• C. 90-110
• D. 60-100

Answer: (D)

A resting heart rate for an adult is typically about 60 to 100 beats per minute. This range is what clinicians use as the reference when someone is at rest, calm, and not influenced by recent activity, caffeine, or stress. Values within this span are considered normal for most adults.

Why this range matters: it helps identify potential cardiovascular issues. If the heart rate is consistently below 60, that can indicate bradycardia; if it’s consistently above 100, that can indicate tachycardia. Both can be normal in certain situations (like well-trained athletes or temporary fever), but outside the typical range generally prompts further assessment.

In practice, when you measure, take the reading after the person has rested quietly for several minutes, ideally with them seated or lying down, to get an accurate resting rate. If you notice the rate outside the 60–100 range or an irregular rhythm, document it and notify the supervising nurse.