DIA too low
Aug 26, 2023
Source: Cainiu Health
Dr. Yang Shuwen
Introduction
In general, DIA refers to diastolic blood pressure. Low diastolic pressure may be caused by factors such as physical activity, postural changes, insufficient blood volume, drug side effects, hyperthyroidism, or heart failure, and treatment should be tailored according to the specific situation. If a patient experiences abnormally low diastolic pressure, prompt medical consultation is recommended to determine the underlying cause and receive targeted treatment.
In general, DIA refers to diastolic blood pressure. Low diastolic pressure may be caused by factors such as physical activity and postural changes, insufficient blood volume, drug side effects, hyperthyroidism, or heart failure. Treatment should be based on the specific circumstances. The detailed analysis is as follows:
1. Physical activity and postural changes
During intense exercise or upon sudden standing, changes in blood vessel dilation and cardiac output may lead to a drop in diastolic blood pressure. This phenomenon is known as orthostatic hypotension and may temporarily cause abnormally low diastolic pressure. Symptoms typically resolve after resting.
2. Insufficient blood volume
If blood volume in the body is inadequate—such as due to severe bleeding, dehydration, or malnutrition—diastolic pressure may decrease. Reduced blood volume leads to decreased cardiac filling, resulting in lower diastolic blood pressure. Maintaining balanced nutrition and drinking sufficient water can help alleviate symptoms.
3. Drug side effects
Certain medications may lower blood pressure, including some antihypertensive drugs, diuretics, and alpha-1 blockers. These drugs affect the blood pressure regulation system through various mechanisms, potentially causing excessively low diastolic pressure. Symptoms usually improve after discontinuation of the medication.
4. Hyperthyroidism
In patients with hyperthyroidism, excessive secretion of thyroid hormones increases metabolic rate and heart rate, leading to increased cardiac output and consequently low diastolic pressure. Under medical guidance, patients may take medications such as methimazole tablets or enteric-coated methimazole tablets for treatment.
5. Heart failure
In heart failure, the heart cannot pump out sufficient blood after contraction, leading to blood congestion and reduced capillary tension, which results in low diastolic pressure. Patients may follow medical advice to use medications such as captopril sustained-release tablets or metoprolol tartrate tablets for treatment.
If a patient experiences abnormally low diastolic pressure, prompt medical evaluation is recommended to determine the underlying cause and receive appropriate, targeted treatment.
