Final answer:
The statement is false; an NPO order typically means no food or liquids are allowed unless modifications to the order specifically permit certain clear liquids.
Step-by-step explanation:
The statement, 'If a patient has NPO order, they can only have liquids' is FALSE. NPO stands for 'nil per os' or 'nothing by mouth', which includes a restriction on liquids unless specifically indicated otherwise. In medical practice, an NPO order means the patient is not allowed to consume any food or liquids. If a physician allows certain types of clear liquids, this will be clearly noted in the patient's medical orders, which might be referred to as a modified NPO status, such as 'NPO except for medications' or 'NPO except for clear liquids'. Therefore, an NPO order without specific allowances does not permit liquids. Understanding and adhering to NPO guidelines is critical for ensuring patient safety and preparing the patient for procedures or surgery.