Final answer:
Using film markers on lateral chest X-rays is essential for both left and right lateral positions to ensure accurate diagnosis and maintain image integrity.
Step-by-step explanation:
The statement that it is not necessary to use film markers on a lateral chest X-ray unless doing a right lateral is false. Regardless of whether a left lateral or right lateral chest X-ray is being taken, it is crucial to use film markers. The marker indicates on the image which side of the body is being imaged, which is essential for accurate diagnosis and to avoid errors in laterality (such as mistaking the right side for the left, or vice versa) when interpreting the chest X-ray. It is a standard practice in radiography to use film markers on all X-rays to maintain image integrity and patient safety.