When a service such as ultrasound is available only at certain times, ________ scheduling is used to group ultrasound appointments together.

Ultrasound

A diagnostic imaging technique that uses high-frequency sound waves to create images of structures within the body, commonly used for examining fetuses during pregnancy and diagnosing medical conditions.

Scheduling

The process of planning and organizing tasks or events by allocating them specific times during which they are to be completed or occur.