الوصفFentanyl. 2 milligrams. A lethal dose in most people.jpg
English: Fentanyl. 2 milligrams next to penny. US DEA: "2 milligrams of fentanyl, a lethal dose in most people". The diameter of the US penny is 19.05 mm, or 0.75 inches.
التاريخ
- date from the archived image caption.
المصدر
Fentanyl. Image 4 of 17. See archive with caption: "photo illustration of 2 milligrams of fentanyl, a lethal dose in most people". See also these DEA pages:
Facts About Fentanyl. "Two milligrams of fentanyl can be lethal depending on a person’s body size, tolerance and past usage. DEA analysis has found counterfeit pills ranging from .02 to 5.1 milligrams (more than twice the lethal dose) of fentanyl per tablet. 42% of pills tested for fentanyl contained at least 2 mg of fentanyl, considered a potentially lethal dose."
One Pill Can Kill. "Laboratory testing indicates 7 out of every 10 pills seized by DEA contain a lethal dose of fentanyl." And: "2mg, the amount on the tip of this pencil, can be enough to kill an average American.""
Using coins for scale is discouraged as it will require people unfamiliar with them to look up the dimensions or guess, both of which defeat the purpose of the object in the first place. Coins can also reinforce a geographical bias, and some coins' designs are copyrighted.
Ideally, a photograph should include a ruler with the subject (example) or an added scale marking.
SI ("metric") units are the most commonly used worldwide (see meter and centimeter).