Understanding Hypotension
Low readings can be normal for some people. In others, dehydration, medication effects, blood loss, or medical conditions can contribute. A drop when standing is called orthostatic hypotension and can cause dizziness or fainting.
How it is assessed or used in care
Clinicians consider symptoms and a person’s usual blood pressure rather than relying on a number alone. Evaluation may include a medication review, measurements in different positions, and testing guided by the suspected cause.
What to discuss with your clinician
Contact a clinician about repeated dizziness, fainting, or new low readings. Do not increase salt or stop medication without advice. Collapse, confusion, chest pain, or signs of severe bleeding require emergency assessment.
Medical references
Sources accessed November 13, 2026.
This information is for general education, not a diagnosis or an individualized treatment plan. Discuss symptoms, test results, and treatment decisions with a qualified clinician. For a medical emergency, call 911.