RT Book, Section A1 Aleguas, Alfred A1 Lewander, William J. A2 Tenenbein, Milton A2 Macias, Charles G. A2 Sharieff, Ghazala Q. A2 Yamamoto, Loren G. A2 Schafermeyer, Robert SR Print(0) ID 1155749015 T1 Thyroid Hormones T2 Strange and Schafermeyer's Pediatric Emergency Medicine, 5e YR 2019 FD 2019 PB McGraw-Hill Education PP New York, NY SN 9781259860751 LK accessemergencymedicine.mhmedical.com/content.aspx?aid=1155749015 RD 2024/03/28 AB Acute ingestions are generally benign but may be delayed in onset (2–4 days).Ingestions of greater than 5 mg warrant measurement of T4 concentration at about 4 hours after ingestion. A T4 level of greater than 75 μg/dL warrants close follow-up such as daily assessment for signs and symptoms of thyroid hormone excess.Symptoms are usually mild and consist of adrenergic excess: tachycardia, hypertension, fever.Treatment is symptomatic and may include beta-blocking agents and antipyretics.