What is the cassette size for a lateral coccyx projection?

The correct cassette size for a lateral coccyx projection is 8" x 10". This size is appropriate because it provides sufficient coverage for the anatomical area of interest while also allowing for optimal image quality. In radiography, using a cassette that matches the size of the region being imaged helps ensure that all necessary structures are captured within the exposure area without requiring excessive amounts of radiation or resulting in unnecessary exposure to surrounding tissues.

The 8" x 10" size is commonly used for smaller body parts, such as the coccyx, as it is compact and facilitates easier positioning and alignment. This is particularly important for lateral projections, where the alignment of the anatomical structures is crucial for accurate imaging.