Final answer:
Continuous infusion is the best way to administer IV drugs in labor as it provides a steady and controlled delivery of medication throughout labor.
Step-by-step explanation:
The best way to administer IV drugs in labor is through continuous infusion. Continuous infusion ensures a steady and controlled delivery of the medication throughout labor, allowing for more precise dosing and maintaining therapeutic levels in the bloodstream. This method is preferred over bolus injections or intermittent bolus injections because it provides a more consistent and stable drug concentration.