Which term is associated with the measurement of blood pressure expressed in millimeters of mercury?

Which term is associated with the measurement of blood pressure expressed in millimeters of mercury?

• A. Blood Pressure
• B. Depth in Respiration
• C. Diastolic
• D. ECG

Answer: (A)

Blood pressure is measured and reported in millimeters of mercury because that unit comes from the traditional mercury-based instruments used to measure pressure. When you see a reading like 120 over 80, both numbers are blood pressure values expressed in mmHg. The term that describes this measurement is simply blood pressure. Diastolic refers to one part of the reading—the lower value when the heart relaxes—not the overall measurement itself. ECG is a different test that records the heart’s electrical activity, not a blood pressure measurement.

Blood pressure is measured and reported in millimeters of mercury because that unit comes from the traditional mercury-based instruments used to measure pressure. When you see a reading like 120 over 80, both numbers are blood pressure values expressed in mmHg. The term that describes this measurement is simply blood pressure. Diastolic refers to one part of the reading—the lower value when the heart relaxes—not the overall measurement itself. ECG is a different test that records the heart’s electrical activity, not a blood pressure measurement.