What is an infusion pump used for in healthcare?

An infusion pump is primarily utilized in healthcare to deliver fluids, medications, or nutrients directly into a patient's bloodstream in a controlled manner. This device allows for precise regulation of the flow rate and volume of the infusion, ensuring that patients receive the correct dosage over a specified period. Infusion pumps are essential for treating a variety of medical conditions where patients may require continuous or intermittent administration of intravenous therapies.

The other options refer to different medical devices or functions not associated with infusion pumps. Monitoring vital signs is typically done using monitors or other diagnostic devices, while blood transfusions are performed using specific blood transfusion sets and practices. Ventilation for patients who are unable to breathe adequately is managed with mechanical ventilators, not infusion pumps. Hence, the correct answer highlights the specific and crucial role of infusion pumps in delivering therapeutic substances safely and effectively.