A 61-year-old man requires extensive periodontal therapy.Assessment data reveal that he has been on anticoagulant drug therapy and is taking warfarin (Coumadin) .In anticipation of posttreatment hemorrhage,the dental hygienist should first:
A) Ask him to discontinue taking the drug.
B) Consult his physician about discontinuing medication.
C) Ask for a determination of his prothrombin time.
D) Prescribe vitamin K.
Correct Answer:
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