Which factor increases the likelihood of requiring central venous access during surgery in trauma or burn patients?

• A. Small fluid shifts and no vasopressors anticipated.
• B. Large fluid shifts or anticipated vasopressor use.
• C. Very short, minor procedures.
• D. Pediatric patients only.

Answer: (B)

Large fluid shifts or anticipated vasopressor use drive the need for central venous access in trauma or burn surgery. When a patient is expected to undergo rapid, substantial resuscitation, a central line provides a reliable, high-volume route to deliver fluids and blood products quickly and safely, which is harder to achieve with peripheral veins as they may be difficult to access or may collapse under heavy resuscitation. Vasopressors are often required to support blood pressure in shock, and delivering them through peripheral veins carries a higher risk of tissue injury if the line infiltrates; central venous access minimizes this risk and ensures stable administration. Central lines also offer a platform for hemodynamic monitoring and repeated blood sampling if edema or injury makes peripheral access unreliable.

In contrast, small fluid shifts with no planned vasopressor use, very short minor procedures, or scenarios restricted to pediatric patients alone do not typically necessitate central access, since peripheral IV access is usually adequate for those situations.