Intialization range arrays:

UINT16 Range1[] = {179,…………………………………………………………………………... ,275};

UINT16 Range2[] = {275, ………………………………………………………………………….. ,391};

UINT16 Range3[] = {384, ………………………………………………………………………….. ,545};

UINT16 Range4[] = {545, ………………………………………………………………………….. ,763};

The TakeSample function disables the ADC and displays the results on the LCD.

DisplayResults();

vfnLCD_All_Segments_OFF ();

TASK=5;

4 Blood Pressure Monitor and Hypertension

Because hypertension (high blood pressure) becoming more and more common, technology has had to develop medical devices

to help control these diseases. These portable devices allow monitoring blood pressure at home.

4.1 Hypertension Fundamentals

Hypertension or high blood pressure is a condition when the blood pressure in the arteries is chronically elevated. In every heart

beat, the heart pumps blood through the arteries to rest of the body. Blood pressure is the force of the blood that is pushing up

against the walls of the blood vessels. If the pressure is too high, the heart has to work harder to pump and this can lead to

several diseases. A blood pressure monitor is a device used to measure arterial pressure as blood is pumped away from the heart.

Typically, from a user's perspective, a monitor includes an inflatable cuff to restrict blood flow and a manometer (pressure

meter) to measure the blood pressure. From a system designer’s perspective a blood pressure monitor is more complex. It

consists of a power supply, motor, memory, pressure sensor, and user interfaces that can include a display, keypad, or touchpad,

and audio as well as optional USB or wireless communication interfaces. For more information go to the Blood Pressure Monitors

webpage.

Implementing a Glucometer and Blood Pressure Monitor Medical Devices, Rev. 1, 4/2010

Freescale Semiconductor, Inc.

6

Blood Pressure Monitor and Hypertension