Which of the following is a normal adult pulse rate?

A normal adult pulse rate ranges between 60 to 100 beats per minute. This range is considered the standard for resting heart rates in adults. Factors such as age, fitness level, and overall health can influence individual pulse rates; however, anything regularly above 100 beats per minute or below 60 beats per minute may indicate an abnormal condition that requires further investigation.

The other options fall outside of this normal range. A pulse rate of 40-60 beats per minute would typically be considered bradycardia, which can be normal in well-conditioned athletes but is not a typical resting rate for most adults. A pulse rate of 100-120 beats per minute indicates tachycardia, which might be seen during physical activity or in certain medical conditions. Similarly, a pulse rate of 120-150 beats per minute is well above the normal range and could signal an urgent medical issue if resting. Understanding the normal range helps in assessing cardiac health and determining if immediate action or further evaluation is necessary.