Symptom Checker
Step 4: Read and complete the decision guide to learn more about your symptoms.
Blacking Out, Fainting, or Loss of Consciousness
Check your blood pressure lying down. Stand up and measure it again while you continue to stand. Wait three minutes, unless you are too lightheaded to continue standing, and measure your blood pressure one more time.
Which of the following best describes what happened to your blood pressure when you stood up?
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