Online Manual
Make the daily measurement at the same time or at the time recommended by your doctor
Relax and rest about 5 minutes before taking a measurement
After eating, smoking, or exercising wait about 30 minutes before taking a measurement
After making a measurement wait about 5 to 10 minutes before taking another measurement
Step 1
Turn on the OSTRA heart spectrum blood pressure monitor by pressing the green "ON/OFF" button.
Step 2
Wear the measuring cuff around the left/right upper arm and comfortably tighten it around 2 cm above the elbow joint. Make sure that the cuff can be turned slightly around the arm.
Step 3
Make sure the cuff is located at the same level of height of the heart. Straight the arm and adjust the cuff to keep the tube parallel to the midline of the arm and straighten to the middle finger.
Step 4
Sit comfortably on a chair, preferably with back support, and relax.
Step 5
Press on the orange button "START" to start the measuring.
If you feel uncomfortable or have problems while the OSTAR HK-809 heart spectrum blood pressure monitor inflates the cuff or performs the measurement, you can press the green button "ON/OFF" on the right side of the OSTAR HK-809 heart spectrum monitor to interrupt the measurement. As soon as the "ON/OFF" button is pressed, the OSTAR HK-809 heart spectrum blood pressure monitor deflates the cuff immediately until the cuff is completely deflated.
Sources of error or influencing factors in blood pressure measurement
Effect on systolic blood pressure value | Effect on diastolic blood pressure value | |
Urge to stool or urine | up to +27 mmHg | up to +22 mmHg |
White coat effect | up to +22 mmHg | up to +14 mmHg |
Speaking | up to +17 mmHg | up to +13 mmHg |
Smoking | up to +10 mmHg | up to +8 mmHg |
Drinking coffee | up to +10 mmHg | up to +7 mmHg |
acute cold (draught) | up to +11 mmHg | up to +8 mmHg |
lack of back support | up to +8 mmHg | up to +6-10 mmHg |
Cuff too small | up to -8 mmHg | up to +8 mmHg |
Legs crossed | variable | variable |
emotional stress | variable | variable |
Source: Wikipedia
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