# Macrolide antibiotics are usually avoided in asthmatics because: A. it can precipitate asthmatic attack B. it interacts with theophylline C. such patients are usually allergic to penicillins D. such patients show penicillin resistant infections # Anticoagulation therapy should be advised to discontinue before minor or major oral surgical procedures if: A. INR (international normalized ratio) is less than 3.0 B. INR is more than 3.0 C. PT (Prothrombin time) is less than 10 seconds D. PT is in range of 10-15 seconds # Which of the following oral manifestations can be often seen in asthmatics? A. Xerostomia B. Geographic tongue C. Enamel hypoplasia D. Aphthous ulcers # A male patient of 76 yrs is on warfarin therapy and needs emergency extractions of a decayed tooth. Select the appropriate protocol given below. A. Do not stop the warfarin therapy – perform the surgery with local hemostatic agents - a...