A small-bore feeding tube has just been inserted. Before use, the nurse reviews the depicted path. Click the segment that makes administration through this tube unsafe despite its passage behind the airway.

C. C contains the distal tip and openings, which remain in the esophagus above the stomach.

Avoiding the trachea is necessary but not sufficient. The distal tube and delivery openings must reach the intended gastrointestinal location before feeding. Do not use the tube shown; obtain placement confirmation according to protocol and correct the malposition. Air insufflation with auscultation is not an adequate substitute.

The observations are fictional teaching data. Apply the stated context; the selected feature does not by itself replace a complete bedside assessment.

Trace the tube to all delivery openings; proximal course alone cannot establish readiness for use.

Trace the tube to all delivery openings; proximal course alone cannot establish readiness for use.

A shows entry and B shows a proximal segment; neither establishes where feed will leave the tube. D is the stomach, but no distal tube enters the selectable gastric region. C identifies the actual delivery segment remaining above it.

• Feeding-tube side ports must reach the intended destination — Trace the tube to all delivery openings; proximal course alone cannot establish readiness for use.
• Comparison with context — The proximal path is posterior to the airway, yet the distal location is still unsafe.