What is a hemostat and what is its primary function?

• A. A scalpel used to dissect tissue.
• B. A clamp with no locking mechanism.
• C. A needle holder.
• D. A locking clamp used to occlude blood vessels or grasp tissue to control bleeding; it has jaws, a box lock, and a ratchet mechanism.

Answer: (D)

A hemostat is a locking clamp used to control bleeding by occluding blood vessels or grasping tissue. Its jaws grip the vessel or tissue, and the box lock with a ratchet keeps the clamp closed so pressure is maintained without continuous hand force. This locking feature is what makes it reliable for stopping bleeding while other steps—like suturing—are completed.

The other instruments described have different roles: a scalpel cuts tissue; a non-locking clamp can obstruct grasping or maintaining pressure but won’t stay in place reliably; a needle holder is used to grasp and guide suturing needles.