Final answer:
The normal blood pressure value among the options provided is A. 114/70 mm Hg. Blood pressure is expressed as systolic over diastolic and a healthy blood pressure is important to minimize the risk of cardiovascular and kidney diseases.
Step-by-step explanation:
The normal blood pressure value is A. 114/70 mm Hg. According to the American College of Cardiology and the American Heart Association, a normal blood pressure is less than 120/80 mm Hg. Value B. 70/120 mm Hg is incorrect as it inverses the typical systolic/diastolic relationship, C. 142/65 mm Hg represents a systolic hypertension scenario, and D. 80/120 mm Hg also inverts the systolic and diastolic readings.
The systolic pressure is the first number in a reading and reflects ventricular contraction or the ejection of blood during systole, while the diastolic pressure is the second number and measures arterial pressure during ventricular relaxation, or diastole. It is essential to maintain a healthy blood pressure to reduce the risk of heart attack, stroke, and other health issues associated with hypertension such as heart failure and chronic kidney disease.