What is the medical term meaning passed out?

The medical term for "passed out" is "syncope". Syncope is a temporary loss of consciousness (LOC) that is caused by a brief interruption of blood flow to the brain. It can be caused by a variety of factors, including:

* Cardiac arrhythmias: These are abnormal heart rhythms that can cause the heart to stop beating or beat too slowly, which can lead to a drop in blood pressure and a loss of consciousness.

* Vasovagal syncope: This is the most common type of syncope and is caused by a sudden drop in blood pressure that is triggered by certain triggers, such as standing up too quickly, dehydration, or emotional stress.

* Neurological disorders: These can include conditions such as epilepsy, stroke, and multiple sclerosis, which can all affect the brain's ability to control blood pressure and heart rate.

* Medications: Certain medications, such as blood pressure medications and antidepressants, can cause syncope as a side effect.

* Other medical conditions: These can include conditions such as diabetes, anemia, and thyroid problems, which can all affect the body's ability to regulate blood pressure and heart rate.

Syncope is usually a harmless condition and does not require treatment. However, it is important to see a doctor if you experience syncope to determine the cause and to rule out any underlying medical conditions.