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Picograms per millilitre (pg/mL)

Some medical tests report results in picograms per millilitre (pg/mL).

  • A picogram is one-trillionth of a gram. A gram is about 1/30 of an ounce.
  • A millilitre measures fluid volume equal to one-thousandth of a litre. A litre is a little bigger than a quart.