What complication may arise from an incorrectly placed central line?

An incorrectly placed central line can lead to a pneumothorax, which occurs when air enters the space between the lung and chest wall. This is particularly relevant when a central line is inserted into the subclavian or jugular vein, as improper technique or anatomical variations can puncture the pleura, allowing air to fill the pleural cavity. A pneumothorax can compromise lung function, cause respiratory distress, and necessitate emergency interventions.

Other options, while related to fluid and circulatory status, do not directly represent complications from the placement of a central line. Reduced fluid intake and dehydration are more often results of inadequate therapy rather than complications from line placement itself, while increased blood pressure is not a direct complication of improper central line insertion. Understanding these distinctions is crucial for recognizing and addressing the potential risks associated with central venous catheterization.