47
Each time he arrived at the anticoagulation clinic after his BCG therapy, his INR was supratherapeutic, except after his fourth treatment (INR of 2.5), which can be explained by residual effects from the phytonadione he received a week earlier.
 adverse event: residual effects 
Please tell me event type and its trigger word from given type options. Output format is "type: trigger".  Option: adverse event, potential therapeutic event 
Text: {0} 
Answer:
 adverse event: residual effects 