Oregon Scientific BPW810N user manual About Blood Pressure, HOW the Blood Pressure Monitor Works

Models: BPW810N

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Do not immerse the unit in water. If it comes in contact with water, dry it immediately with a soft lint-free cloth.

Use a soft, slightly moistened cloth to wipe off the unit and cuff. Do not use abrasive or corrosive cleaning agents, as these may cause damage.

Remove the batteries whenever you are planning to store the unit for a long period of time.

When replacing batteries, use new batteries as specified in this user manual. Do not mix new and old batteries.

Do not place objects such as stickers on the wrist cuff or unit, as these may impair the measurement.

Do not subject the unit to excessive force, shock, dust, temperature changes, or humidity. Such treatment may result in malfunction, a shorter electronic life span, damaged batteries, or distorted parts.

Do not tamper with the internal components. Doing so will terminate the product warranty and may cause damage.

The unit contains no user- serviceable parts.

If you no longer need to use this product, protect the environment by bringing it to your dealer or designated collection point for proper disposal.

ABOUT BLOOD PRESSURE

What is blood pressure?

Blood pressure is the force generated by the blood against the walls of arteries during cardiac contraction and relaxation

(e.g., the pumping action of the heart).

What are systolic pressure and diastolic pressure?

When ventricles contract and pump blood out of the heart, blood pressure reaches its maximum value. This highest pressure in the cycle is known as systolic pressure. When the heart relaxes between heartbeats, the lowest blood pressure is diastolic pressure.

What is mean arterial pressure (MAP)?

The mean arterial pressure (MAP) is the average pressure that forces blood through the arteries. It is not the average of the systolic and diastolic blood pressure; rather, MAP corresponds to a state of balance between the compressive and expansive forces acting on the arterial wall when there is no distension outward or inward. MAP is an excellent way to evaluate the stress on the walls of your blood vessels, and can be used to evaluate excessive load on the cardiovascular system. Show your MAP history to your doctor to provide additional information that may help him or her understand your situation.

Why measure your blood pressure?

Blood pressure measurement can highly reflect one’s health condition. High blood pressure is potentially linked to serious illnesses such as stroke, heart disease and kidney failure.

Since there is no symptom most of the time, many hypertensive people do not realize they are at risk until their health is seriously threatened.

What is the standard blood pressure classification?

Figure 3 illustrates the blood Pressure classification made by World Health Organization (WHO) and International Society of Hypertension (ISH) in 1999.

(mmHg)

110

Grade 3 hypertension(severe)

 

 

 

 

 

 

 

 

100

Grade 2 hypertension(moderate)

 

 

pressure

95

Grade 1 hypertension(mild)

 

 

 

 

 

 

 

 

 

 

blood

90

Subgroup: borderline

 

 

 

 

 

 

 

 

 

 

 

High-normal Blood Pressure

 

 

 

 

Diastolic

85

 

 

 

 

 

 

 

 

 

 

80

Normal Blood Pressure

 

 

 

 

 

 

Optimal Blood

 

 

 

 

 

 

 

Pressure

 

 

 

 

 

 

 

120

130

140

150

160

180

 

 

Systolic blood pressure (mmHg)

 

Reference material: 1999 World Health Organization- International Society of Hypertension Guidelines for the management of hypertension, Journal of Hypertension, 1999, 17(2): 151-183.

NOTE

Blood pressure is considered high when either the diastolic or systolic blood pressure value exceeds the normal range. When a patient’s systolic and diastolic blood pressures fall into different categories, the higher category should apply.

Only a physician can tell you your normal blood

pressure range and the point at which you are at risk.

Consult your physician to obtain these values. If the measurements taken with these products fall outside the range, consult your physician.

Why does my blood pressure fluctuate throughout the day?

Individual blood pressure varies greatly both on a daily and a seasonal or temperature basis. These variations may be more pronounced in hypertensive patients. Normally the blood pressure rises while at work and is at its lowest during sleep.

The graph below illustrates the variations over a single day with measurement taken every 5 minutes. The thick line represents sleep time. The rises in blood pressure at 4PM (A in the graph) and 12AM (Bin the graph) correspond to an attack of pain and sexual intercourse (Beven, Honour & Stott, Clin. Sci. 36:329, 1969).

HOW THE BLOOD PRESSURE MONITOR WORKS

This product uses the Oscillometric Measuring method to detect your blood pressure. Before every measurement, the unit establishes a “zero pressure”equivalent to the air pressure.

Then it starts inflating the wrist cuff to 180mmHg or higher until it senses that it has blocked your blood in the artery. After that, the deflation process starts, during which time the unit detects pressure oscillations generated by beat- to-beat pulsatile, which is used to determine the systolic, mean and diastolic pressure, and also your pulse rate. Any motion during this period will result in an incorrect measurement. After all readings are determined and displayed on the LCD, the measurement is finished and the wrist cuff automatically deflates.

GETTING STARTED

INSTALLING AND REPLACING THE BATTERIES

1.Slide off the battery cover.

2.Install the batteries by matching the correct polarity, as shown below. Always use the correct battery type (2 alkaline LR03 AAA-size).

3.Replace the cover.

NOTE Replace the batteries whenever the weak battery

mark shows, the display is dim, or the display does not illuminate when the power is on. Replace all the batteries at the same time - it is dangerous to mix old and new batteries.

Contact your local waste disposal authority for instructions on how to dispose of used batteries. Used batteries can be harmful to the environment, and should not be thrown out with household trash.

SETTING DATE, TIME AND MEASUREMENT UNITS

It is important to set the clock before using your blood pressure monitor, so that a time stamp can be assigned to each record that is stored in the memory.

1.When the unit is off, press and hold SET for 2 seconds to enter the setting mode.

2.The setting order is as follows: 12/24 hour format, hour, minute, year, month/day or day / month format, month, date, and measurement unit (kPa or mmHg).

3.Press or to increase / decrease a value or change the setting.

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Oregon Scientific BPW810N user manual About Blood Pressure, HOW the Blood Pressure Monitor Works