Micrograms (mcg)

Some medical tests report results in micrograms (mcg). A microgram is one-millionth of a gram. A gram is about 1/30 of an ounce.

Is it an emergency?

If you or someone in your care has chest pains, difficulty breathing, or severe bleeding, it could be a life-threatening emergency. Call 9-1-1 or the local emergency number immediately.
If you are concerned about a possible poisoning or exposure to a toxic substance, call Poison Control now at 1-800-567-8911.

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