|Causes painless rectal bleeding in 2 % of population. Its's complications are|
|intussusception, volvulus, and perforation.|
|The imaging test most likely to reveal a definitive diagnosis is the radionuclide scan or|
|The maximum safe dose of lidocaine with epinephrine is 7 mg/kg and the maximum safe|
|dose of lidocaine without epinephrine is 3–5 mg/kg.|
|Local anesthetics exert toxicity in the CNS at lower toxic doses and on cardiac conduction at|
|higher concentrations. Initial symptoms may include dizziness, metallic taste, and perioral |
tingling. Severe symptoms include alterations in mental status, seizures, tachyarrhythmias
(manifested as widening QRS intervals), and cardiovascular collapse.
|If mild toxicity is identified, management includes supportive care. For patients who develop|
|seizures, arrhythmias or cardiac arrest, the use of 20% intravenous lipid emulsion therapy |
has been widely reported, though efficacy data from large clinical trials is lacking.