DBV30053 Unit 3.3: Infusion Devices

What is the primary function of an infusion device?

• To deliver fluids into a patient's body

• To monitor vital signs

• To perform surgeries

• To provide physical therapy

Answer explanation

The primary function of an infusion device is to deliver fluids into a patient's body, such as medications, nutrients, or blood products, ensuring proper hydration and treatment.

Which type of infusion pump is designed for patient-controlled analgesia?

• Pressure Infusor

• Patient-Controlled Analgesic (PCA) Pump

• Syringe Infusion Pump

• General-Purpose Infusion Pump

Answer explanation

The Patient-Controlled Analgesic (PCA) Pump allows patients to self-administer pain relief by controlling the timing and dosage of analgesics, making it specifically designed for patient-controlled analgesia.

What mechanism do general-purpose infusion pumps use to control fluid delivery?

• Peristaltic mechanism

• Pneumatic system

• Magnetic levitation

• Hydraulic system

Answer explanation

General-purpose infusion pumps primarily use a peristaltic mechanism to control fluid delivery. This method involves rhythmic contractions of a flexible tube, allowing precise and consistent flow of fluids.

What is a common problem indicated by an occlusion alarm?

• Low battery

• Blockage or kinked tubing

• Air in the line

• Incorrect infusion rate

Answer explanation

An occlusion alarm typically indicates a blockage or kinked tubing in the infusion system, which prevents proper flow. This is the most common issue that needs to be addressed to ensure effective medication delivery.

What type of infusion device is used to increase the rate of IV infusion by applying pressure?

• Pressure Infusor

• PCA Pump

• Syringe Pump

• Extracorporeal Perfusion Pump

Answer explanation

A Pressure Infusor is specifically designed to apply pressure to IV bags, increasing the rate of infusion. Other devices like PCA Pumps and Syringe Pumps serve different purposes, making Pressure Infusor the correct choice.

What is the purpose of a syringe size sensor in a syringe pump?

• To detect air bubbles

• To measure fluid temperature

• To ensure correct syringe size is used

• To monitor patient vitals

Answer explanation

The syringe size sensor in a syringe pump is crucial for ensuring that the correct syringe size is used. This helps maintain accurate dosing and prevents potential complications from using an incorrect syringe.

During which medical procedure is an extracorporeal perfusion device typically used?

• Open heart surgery

• Endoscopy

• Radiology

• Dialysis

Answer explanation

An extracorporeal perfusion device is primarily used during open heart surgery to take over the function of the heart and lungs, allowing surgeons to operate on a still and bloodless field.

What does the microcontroller in an infusion pump do?

• Controls the motor speed

• Displays patient information

• Administers medication

• Measures blood pressure

Answer explanation

The microcontroller in an infusion pump primarily controls the motor speed, which regulates the flow rate of medication being administered to the patient. This ensures accurate dosing and timing.

What is the function of the ADC in an infusion pump?

• To display the infusion rate

• To control the motor speed

• To convert analog signals to digital

• To convert digital signals to analog

Answer explanation

The ADC (Analog-to-Digital Converter) in an infusion pump is responsible for converting analog signals from sensors into digital signals that the pump's microcontroller can process, making 'To convert analog signals to digital' the correct choice.

What type of infusion device is specifically designed for enteral feeding?

• Patient-Controlled Analgesic Pump

• General-Purpose Infusion Pump

• Syringe Pump

• Enteral Feeding Pump

Answer explanation

The Enteral Feeding Pump is specifically designed for delivering nutrition directly into the gastrointestinal tract, making it the correct choice for enteral feeding, unlike the other options which serve different purposes.