Which of the following correctly matches the Mosquito, Crile, and Kelly clamps to typical vessel sizes?

• A. Mosquito clamp — small for fine, tiny vessels; Crile — medium-sized vessels; Kelly — larger vessels.
• B. Mosquito clamp — large; Crile — tiny; Kelly — medium.
• C. Mosquito clamp — used only for skin; Crile — used for bone; Kelly — never used for vessels.
• D. Mosquito clamp — never used for vessels; Crile — only for fat; Kelly — for nerves.

Answer: (A)

Sizing of vascular clamps reflects the diameter of the vessels they’re meant to control. Mosquito clamps are the smallest, designed for fine, tiny vessels such as small arteries or veins. Crile clamps are a step up in size and are suited for medium-sized vessels. Kelly clamps are larger and sturdier, making them appropriate for clamping bigger vessels or tissue pedicles. This arrangement—Mosquito for tiny vessels, Crile for medium vessels, Kelly for larger vessels—fits how these instruments are used in practice. The other options mix up the sizes or assign non-vascular uses, which doesn’t align with how these clamps are designed to work.