Lithium toxicity is most likely with which of the following patients?
A.
Elderly man with diarrhea from food poisoning
B.
Teenage girl on oral contraceptives
C.
40-year-old man who smokes marijuana on the weekend
D.
All of the above are at high risk
ANS: A
Diarrhea can precipitate dehydration, which is a common cause of lithium toxicity. Responses B and C are not indicators of high risk behaviors for toxicity.
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