Final answer:
Automatic Brightness Control (ABC) fluoroscopic equipment may not be possible to use on infants, extremely large patients, and children incapable of understanding instruction to remain motionless.
Step-by-step explanation:
Automatic Brightness Control (ABC) fluoroscopic equipment may not be possible to use in certain situations:
- On infants: Infants have delicate tissues that are more sensitive to radiation. The release of radiation from the fluoroscopic equipment could be harmful to their health.
- On extremely large patients: The size of the patient can affect the quality of the images obtained. In cases where the patient's size exceeds the capabilities of the equipment, it may not be possible to achieve clear and accurate imaging.
- On children incapable of understanding instruction to remain motionless: Fluoroscopic procedures require patients to remain still to obtain clear images. If a child is unable to understand and follow instructions, the procedure may be compromised, leading to poor-quality images.