VABC Catheter Types 4

Question 1

A non-coring Huber needle is required to access which type of vascular access device?

Accepted Answer

Implanted port

Answer

Huber needles have a deflected tip that cores the silicone septum of an implanted port without removing material, preserving the septum's integrity over hundreds of accesses.

Question 2

Which catheter is most appropriate for a neonate requiring umbilical venous access for emergency resuscitation medications?

Accepted Answer

Umbilical venous catheter (UVC)

Answer

An umbilical venous catheter provides rapid central venous access via the umbilical vein in neonates, making it the first-line device in neonatal resuscitation.

Question 3

Antimicrobial-impregnated CVCs are typically coated with which combination of agents to reduce CLABSI rates?

Accepted Answer

Chlorhexidine and silver sulfadiazine, or minocycline and rifampin

Answer

Evidence-based antimicrobial CVCs use either chlorhexidine/silver sulfadiazine (external surface) or minocycline/rifampin (internal and external surfaces) to reduce biofilm and CLABSI rates.

Question 4

What is the key hemodynamic indication that distinguishes use of a pulmonary artery catheter (Swan-Ganz) from a standard CVC?

Accepted Answer

Direct measurement of pulmonary artery pressures and cardiac output

Answer

A pulmonary artery catheter (Swan-Ganz) advances through the right heart into the pulmonary artery, enabling direct measurement of hemodynamic parameters unavailable with a standard CVC.

Question 5

Which catheter characteristic is most important when selecting a device for continuous renal replacement therapy (CRRT)?

Accepted Answer

High flow capability with large internal lumen diameter

Answer

CRRT requires blood flow rates of 100-300 mL/min, necessitating a large-bore catheter with a high-flow lumen to prevent circuit clotting.

(VABC) Vascular Access Board Certification Practice Test

(VABC) Vascular Access Board Certification Practice Test

VABC Catheter Types 4