Pharmacology and the Nursing Process by Linda Lane Lilley: Practice Exam

When should warfarin be withdrawn?

1. After dental procedures

2. During pregnancy

3. Before dental procedures

4. Never

The correct answer is: Before dental procedures

Warfarin is a blood-thinning medication commonly used to prevent blood clots. It is important to withdraw warfarin before dental procedures to reduce the risk of excessive bleeding during and after the procedure. This is because dental procedures, such as tooth extractions or root canals, can cause small injuries to the mouth which may result in bleeding. Therefore, it is necessary to stop taking warfarin a few days before the dental procedure to allow the body to produce enough clotting factors to prevent excessive bleeding. Additionally, it is crucial to consult with a doctor before stopping any medication, including warfarin. Withdrawing warfarin during pregnancy is not recommended as it can increase the risk of blood clots, which can be dangerous for both the mother and the baby. Hence, the correct answer is withdrawing warfarin before dental procedures, as option C states. Option A is incorrect because