Low blood pressure and fainting
Overview
Low blood pressure, also known as hypotension, occurs when blood pressure drops below normal levels, causing inadequate blood flow to organs and tissues. This condition often leads to fainting or lightheadedness as the brain temporarily receives insufficient oxygen and nutrients.
Common Causes
Low blood pressure and fainting can occur due to dehydration, especially during hot weather or after intense exercise. Standing up too quickly often triggers these episodes as blood pools in the legs and takes time to reach the brain. Certain medications, prolonged bed rest, and not eating for extended periods can also cause blood pressure to drop. Pregnancy, particularly in the first and second trimesters, commonly leads to lower blood pressure as the body adapts to increased blood volume demands.
Severity Levels
Mild: You may feel slightly dizzy when standing up quickly or notice occasional lightheadedness during hot weather or after long periods without eating.
Moderate: You experience regular dizziness, feel weak or tired throughout the day, and may need to sit down frequently to avoid feeling faint.
Severe: You have frequent fainting episodes, feel extremely weak, experience confusion or difficulty concentrating, and may have chest pain or difficulty breathing that requires immediate medical attention.
Medical Attention
Seek immediate medical attention if you experience frequent fainting episodes, chest pain, difficulty breathing, or confusion along with dizziness. Contact your doctor if you have recurring episodes that interfere with daily activities or if symptoms worsen over time. Get emergency help if fainting occurs suddenly without warning, especially if accompanied by severe headache, vision changes, or if you injure yourself during a fall.
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