Which device is designed to gradually dispense or withdraw a specific amount of fluids via syringe?

• A. Infusion Pump
• B. Syringe Pump
• C. PCA Pump
• D. Dialysis Machine

Answer: (B)

Precise, programmable syringe-based dosing. A syringe pump holds a syringe and uses a motor-driven plunger to move in very small, controlled increments. By advances or retractions of the plunger, it can slowly infuse a exact volume over a set period or withdraw fluid in a controlled manner. This makes it ideal for delivering tiny, precise amounts or pulling back fluid as needed, which is the specific function described. Other devices differ in how they deliver fluids or what they’re primarily used for: general infusion pumps run from a bag rather than a syringe and are not limited to tiny volumes; dialysis machines remove waste from blood rather than administering defined syringe volumes; while a PCA pump is a syringe-based system for patient-controlled analgesia, the core capability described here—gradual, precise syringe-based dosing—points to a syringe pump.