Please get
HbA1c test done. That would be the correct parameter to decide whether the extraction can be done or not. Since elevated levels can cause delay in the post operative healing process.
But at the same time it depends on the clinical situation- how severe is the infection in the the tooth ( if it requires immediate intervention or is it elective procedure? ).
Next Steps
Get
HbA1c blood test done and consult your dentist. If the level is high and if this is an elective procedure then the
sugar levels should be controlled first and then surgical procedure should be done.
Health Tips
Your dentist will be able to advise you best after the test results since he would be checking you clinically.