Podcast
Questions and Answers
What determines the size of vascular catheters?
What determines the size of vascular catheters?
- The number of lumens in the catheter
- The length of the catheter
- The outside diameter of the catheter (correct)
- The material the catheter is made of
In the gauge system, how does gauge size relate to outside diameter?
In the gauge system, how does gauge size relate to outside diameter?
- They have a proportional relationship
- Gauge size varies inversely with outside diameter (correct)
- There is a fixed relationship between the two
- Gauge size varies directly with outside diameter
What advantage of the French system is highlighted in the text?
What advantage of the French system is highlighted in the text?
- It is based on a different unit of measurement
- It is simpler to understand (correct)
- It is only used for peripheral catheters
- It has a more complex relationship between size and diameter
How does the French system calculate outer diameter from French size?
How does the French system calculate outer diameter from French size?
Why are silicone catheters required to be inserted with a guidewire or introducer sheath?
Why are silicone catheters required to be inserted with a guidewire or introducer sheath?
Why are polyurethane catheters used for short-term vascular cannulation?
Why are polyurethane catheters used for short-term vascular cannulation?
What is a characteristic of silicone catheters that makes them suitable for long-term vascular access?
What is a characteristic of silicone catheters that makes them suitable for long-term vascular access?
What is the primary reason for using polyurethane instead of silicone for most vascular catheters in the ICU?
What is the primary reason for using polyurethane instead of silicone for most vascular catheters in the ICU?
What role does rigidity play in the choice between polyurethane and silicone catheters?
What role does rigidity play in the choice between polyurethane and silicone catheters?
Which polymer is more suitable for applications requiring prolonged administration of chemotherapy, antibiotics, and parenteral nutrition solutions?
Which polymer is more suitable for applications requiring prolonged administration of chemotherapy, antibiotics, and parenteral nutrition solutions?
