ABSTRACT

244Plant ingestion is a common cause of poisoning exposures in children under age 5 in the United States, and a significant cause of toxicity in adults (Table 11.1) (22). Each year more than 15,000 Americans are poisoned by plant ingestion (16). The incidence of calls into Poison Control Centers in the United States concerning plant ingestions is estimated to be in the range of 5% to 10% of all calls (21). Substances most frequently involved in human exposure

Substance

Number

% a

Cleaning substances

191,830

10.4

Analgesics

183,013

10.0

Cosmetics

153,424

8.3

Plants

112,564

6.1

Cough and cold preparations

105.185

5.7

Bltea/envenomations

76,941

4.2

Pesticides (including rodenticides)

70,523

3.8

Topteals

69,096

3.8

Antimicrobials

64,805

3.5

Foreign bodies

64,472

3.5

Hydrocarbons

63,536

3.5

Sedatives/hypnotics/antipsycholics

58,450

3.2

Chemicals

53,666

2.9

Alcohols

50,296

2.7

Food poisoning

46,482

2.5

Vitamins

40,883

2.2

From ref. 24. Despite a high frequency of involvement, these substances are not necessarily the most toxic, but often represent only ready availability.

Percentages are based on the total number of human exposures rather than the total number of substances.