Illinois CNA State Practice Exam

Which of the following is NOT a valid blood pressure range designation?

1. 90-119 mm Hg systolic

2. 100-140 mm Hg systolic

3. 60-79 mm Hg diastolic

4. 70-90 mm Hg diastolic

The correct answer is: 100-140 mm Hg systolic

The correct choice refers to a range that does not align with established blood pressure classifications. Blood pressure is categorized based on systolic (the upper number) and diastolic (the lower number) readings, each of which has specific ranges. The designation of 100-140 mm Hg for systolic pressure is inappropriate because it encompasses values that include a potentially higher systolic pressure, where the typical upper limit for normal systolic pressure is usually considered to be 120 mm Hg. Values above this threshold can indicate prehypertension or hypertension, depending on the specific readings. In contrast, the other ranges listed reflect valid classifications. A systolic range of 90-119 mm Hg is entirely acceptable as it includes normal blood pressure readings. The diastolic ranges of 60-79 mm Hg and 70-90 mm Hg are also valid, as they fall within the parameters for normal and elevated blood pressure designations. Recognizing these deviations is crucial for understanding and monitoring a person's cardiovascular health.