Final answer:
The correct treatment for tricyclic antidepressant overdose, which presents symptoms like CNS depression, hypotension, dilated pupils, hyperthermia, and ileus, as well as QT prolongation, is Sodium bicarbonate.
Step-by-step explanation:
Treatment:
The correct treatment for overdose with CNS depression, hypotension, dilated pupils, hyperthermia, and ileus, as well as QT prolongation caused by tricyclic antidepressant overdose is Sodium bicarbonate. Tricyclic antidepressants can cause cardiac toxicity by blocking sodium channels, leading to widening of the QRS complex on an electrocardiogram. Sodium bicarbonate is used as a treatment to correct the acidosis and sodium channel blockade caused by tricyclic antidepressant overdose. It can help prevent the progression of cardiac toxicity and improve the patient's condition.