Blood Pressure Differences Between Arms: When to Seek Help

Difference in blood pressure between the two arms?

Hello, Doctor! I would like to ask about my blood pressure readings.
My left arm diastolic pressure is 125, and my right arm is 147, with systolic pressure around 90 in both arms.
There is a difference of 22 in diastolic pressure between the two arms.
Should I urgently get a cardiovascular check-up, or is this within an acceptable range?

licht, 20~29 year old female. Ask Date: 2016/08/15

Dr. He Dongjin reply Cardiology

Hello, this can be observed within acceptable limits.
Changhua Hospital cares about you.

Reply Date: 2016/08/15

More Info

Understanding blood pressure differences between arms is crucial for assessing cardiovascular health. In your case, the significant difference in diastolic blood pressure (DBP) between your left arm (125 mmHg) and right arm (147 mmHg) is concerning, especially given that the systolic blood pressure (SBP) is similar in both arms at around 90 mmHg.
Typically, a difference of 10-15 mmHg between arms is considered normal. A consistent difference greater than 20 mmHg may indicate underlying vascular issues, such as arterial stenosis or other cardiovascular problems. In your situation, a 22 mmHg difference in diastolic pressure is notable and warrants further investigation.
The reason for this discrepancy could be due to several factors, including anatomical variations, vascular occlusions, or even the positioning of the arms during measurement. It is essential to ensure that blood pressure measurements are taken under similar conditions, such as the same position, time of day, and after resting for a few minutes.
Given the significant difference in your diastolic readings, it is advisable to seek medical attention. A healthcare provider may recommend further diagnostic tests, such as an ultrasound or angiography, to evaluate the blood flow in your arms and check for any blockages or abnormalities in the arteries.
In addition to the blood pressure readings, it is essential to consider other cardiovascular risk factors, such as age, family history, smoking status, cholesterol levels, and the presence of conditions like diabetes or hypertension. These factors can significantly influence your overall cardiovascular health and the urgency of seeking treatment.

If you experience any symptoms such as chest pain, shortness of breath, dizziness, or any other unusual signs, it is crucial to seek immediate medical attention, as these could indicate more severe cardiovascular issues.
In summary, while a blood pressure difference of 22 mmHg in diastolic pressure is above the normal range and could suggest potential cardiovascular concerns, it is essential to consult with a healthcare professional for a thorough evaluation. Early detection and management of any underlying conditions can significantly improve outcomes and reduce the risk of serious complications.

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