Which abbreviation indicates 'Without'?

The abbreviation that indicates 'without' is "s," which originates from the Latin word "sine." In medical contexts, this abbreviation is commonly used in charting and prescriptions to convey that a patient is lacking a certain condition, symptom, or medication. For example, if a patient is prescribed a medication "s food," it means to take the medication without food. Understanding this abbreviation is essential for clear communication within healthcare settings, ensuring that medical directives are accurately interpreted.

The other choices provided are not indicative of 'without.' The abbreviation 'q.h.' stands for 'every hour,' which is used to indicate frequency. 'Fx' refers to a fracture, commonly used in orthopedic contexts, and 'MRI' stands for Magnetic Resonance Imaging, a diagnostic imaging technique. Each of these terms serves a specific purpose in medical documentation or communication, distinct from the meaning of 'without.'