Trendelenburg

Definition

The Trendelenburg position places the patient supine with the entire bed tilted so the head is lower than the feet (typically 15 to 30°). It was historically used for hypotension to promote venous return.

Clinical Uses

• Central line insertion (subclavian, IJ). Promotes venous distention
• Air embolism. Air rises away from pulmonary outflow
• Some gynecologic surgeries

Not Recommended For

• Routine hypotension/shock treatment (may impair respiratory function and cerebral perfusion)
• Increased ICP
• Respiratory compromise

Modified Trendelenburg

Patient supine with only LEGS elevated. Preferred for hypotension because it raises venous return without compressing diaphragm or elevating cerebral pressure.

NCLEX Relevance

True Trendelenburg is used for air embolism and central line insertion.