Limitations

At presentation, patient stabilization, history taking concerning timing, the quantity of paraquat ingested and detailed examination of presenting signs and symptoms (the presenting condition of the lips, tongue mouth, and oropharynx) is prudent. The absence of erythema, ulcerations, or lesions should not completely exclude the possibility of mucosal injury, and close oral assessment and observation should be done promptly and routinely. This is mainly because the appearance of pathology is not always consistent and is dependent on the dosage and the concentration of the paraquat ingested. As previously mentioned, the appearance of lesions and ulcers may occur from hours to 2-5 days after ingestion.