Serum Creatine Phosphokinase Level as a Prognostic Marker for Organophosphorus Poisoning and Its Correlation With Peradeniya Organophosphorus Poisoning Scale.

Introduction: Organophosphorus (OP) compounds are widely used as insecticides in agriculture. The Peradeniya Organophosphorus Poisoning (POP) scale is a simple and effective system for determining the severity of OP poisoning. An increase in serum creatinine phosphokinase (CPK) levels in OP poisoning can be due to persistent oxidative cellular damage to muscle membranes.