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The average adult has about 21 square feet of skin.
Malaria was not eliminated in the United States until 1951. The term eliminated means that no new cases arise in a country for 3 years.
The most dangerous mercury compound, dimethyl mercury, is so toxic that even a few microliters spilled on the skin can cause death. Mercury has been shown to accumulate in higher amounts in the following types of fish than other types: swordfish, shark, mackerel, tilefish, crab, and tuna.
Cocaine was isolated in 1860 and first used as a local anesthetic in 1884. Its first clinical use was by Sigmund Freud to wean a patient from morphine addiction. The fictional character Sherlock Holmes was supposed to be addicted to cocaine by injection.
Certain topical medications such as clotrimazole and betamethasone are not approved for use in children younger than 12 years of age. They must be used very cautiously, as directed by a doctor, to treat any child. Children have a much greater response to topical steroid medications.
![Administration of abdominal thrusts (the Heimlich maneuver) to (A) a conscious victim and (B) an unc](https://biology-forums.com/gallery/47/medium_14755_05_10_12_4_11_17_9267256.jpeg)
![Subcutaneous drug administration: (d) the needle is removed and the puncture site is covered with an](https://biology-forums.com/gallery/47/medium_46687_08_12_14_5_01_53_19533653.jpeg)