Following a simple extraction of tooth 4.7, hemostasis was achieved. Forty-eight hours later, there is renewed bleeding from the extraction site. Firm pressure fails to achieve hemostasis. The most appropriate management is to
    
      
        
          
          obtain an international normalized ratio (INR) and a complete blood count.
        
      
      
      
    
      
        
          
          give local anesthetic and electrocauterize the socket.
      
      
      
    
      
        
          
          apply firm pressure and ice for 10 minutes.
      
      
      
    
      
        
          
          give local anesthetic, pack and suture.
      
      
      
    
    
    
    
    
    
    
    
  
  
 
              
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