There's a slight difference in blood pressure between our left and right arms.
In a normal person, the systolic pressure in the right arm is about 10 mmHg higher than in the left, and the diastolic pressure is about 5 mmHg higher.
A difference of more than 10 mmHg between the arms can indicate a serious health problem.
Clinically, a large difference in blood pressure between the arms leads doctors to highly suspect one of several conditions.
First, aortic dissection.
Second, severe arteriosclerosis.
Third, arterial embolism.
In Yan Feifan's earlier estimation, the difference in Mrs. Na's blood pressure was at least 15 mmHg.
Combined with Mrs. Na's symptoms, Yan Feifan judged with at least ninety percent certainty that she had a thoracoabdominal aortic dissection.
This condition is extremely critical.
If her aortic dissection were to rupture, it would cause massive internal bleeding in her thoracic and abdominal cavities, which could be fatal in an instant.
