Final answer:
The position that ensures safety and comfort for deep vein thrombosis (DVT) is the Trendelenburg position, which involves lying flat on the back with the legs elevated above the level of the heart.
Step-by-step explanation:
The position that ensures safety and comfort for deep vein thrombosis (DVT) is Trendelenburg position. This position involves lying flat on the back with the legs elevated above the level of the heart. By elevating the legs, blood flow is improved, reducing the risk of blood clot formation.
High Fowler's position is not recommended for DVT as it involves sitting upright with the legs hanging down, which can increase the pooling of blood in the legs. Prone position, where a person is lying face down, and supine position, where a person is lying face up, do not specifically address the prevention or treatment of DVT.