12 D3adly Blood Pressure Mistakes You’re Probably Making

3. Using Only One Arm

Effect: Could lead to an inaccurate reading.

Fix: Check both arms initially, and in the future, use the arm with the higher result.

Note: If there’s a difference of more than 10 points, see a doctor—it might signal vascular issues.

Effect: Might raise pressure by as much as 15 points.

Fix: Sit with your feet flat on the floor and avoid crossing your legs.

Effect: If the arm is too low, the reading may be up to 7 points too high; too high, and it may read lower than it actually is.

Fix: Keep your arm at heart level.

Tip: Use a cushion or firm armrest to maintain the right position.

Effect: Could lead to an increase of up to 11 points.

Fix: Sit on a chair that supports your back properly.