What agency is available to help you determine toxicity of a poison based on type of agent, amount and time of exposure, and physical condition of patient?

On barium enema, colon cancer may appear as an apple core (a constricting lesion) or a mass with a filling defect. What is a filling defect?

What will be an ideal response?

A ________ is an approximately 30-degree cut on each end of the joist

A) high-boy cut B) falling cut C) firefighter's cut D) fire-cut