MARYLAND: Researchers have warned that incorrect arm positioning during examinations can lead to people being misdiagnosed with high blood pressure.
In a new study, researchers at the Johns Hopkins Hospital in the United States examined blood pressure readings at different positions of the arms. These positions included arms supported on a table, thighs supported, and unsupported.
Research has shown that certain positions, such as resting your arm on your thigh, can potentially increase blood pressure readings.
According to the National Health Service (NHS), the correct position for reading is sitting in an upright chair with lumbar support, with both feet flat on the floor and arms resting on a table.
According to the institute, people should also rest for five minutes before taking a reading and then take a second reading a few minutes later, to determine the accuracy of the first reading taken.
A study published in JAMA Internal Medicine found that systolic (top reading) readings were 3.9 mmHg higher and diastolic (bottom reading) readings were 4 mmHg higher when resting the arm on the thigh.
While the unsupported arm resulted in an increase of 6.5 mmHg in the upper reading and 4.4 mmHg in the lower reading.
