Final answer:
With a blood pressure reading of 130/70 mm Hg, the systolic pressure is 130 mm Hg, diastolic pressure is 70 mm Hg, pulse pressure is 60 mm Hg, and the mean arterial pressure (MAP) is approximately 90 mm Hg.
Step-by-step explanation:
The blood pressure of a patient is often represented as a ratio of the systolic pressure over the diastolic pressure. If a patient's blood pressure is given as 130/70 mm Hg, here's how to calculate the values:
- Systolic pressure is the higher number representing the pressure in the arteries when the heart beats, which is 130 mm Hg.
- Diastolic pressure is the lower number representing the pressure in the arteries when the heart rests between beats, which is 70 mm Hg.
- Pulse pressure is the difference between systolic and diastolic pressures, calculated as 130 mm Hg - 70 mm Hg, equalling 60 mm Hg.
- Mean arterial pressure (MAP) is approximated by adding the diastolic pressure to one-third of the pulse pressure: MAP = 70 mm Hg + (60 mm Hg / 3), which equals approximately 90 mm Hg.
The mean arterial pressure represents the average force driving blood into vessels that serve the tissues.