Illinois CNA State Practice Exam

For how long should the radial pulse be counted?

1. 15 seconds x 4

2. 20 seconds x 3

3. 30 seconds x 2

4. 60 seconds

The correct answer is: 15 seconds x 4

The best practice for counting the radial pulse is to count for a full minute, which is the most accurate method. This allows the healthcare worker to detect any irregularities or variations in the pulse rhythm that may occur over time. While counting for shorter intervals, like 15 seconds multiplied by four, can be sufficient in situations where time is limited or when the pulse is regular, it can potentially overlook irregularities that might be significant. Counting for a longer period, such as 60 seconds, is the ideal approach to ensure complete accuracy. In clinical settings, if irregularities are suspected, counting the pulse for a full 60 seconds is especially important, allowing for a thorough assessment. However, the option that you selected emphasizes a quicker method that is commonly used in practice when the pulse appears steady and regular, thereby balancing the need for efficiency with a reasonable level of accuracy.