Which abbreviation is used to document a patient's medical history?

Which abbreviation is used to document a patient's medical history?

• A. HBC
• B. MM
• C. Hx
• D. NSR

Answer: (C)

Hx stands for history, which is the information about a patient’s past illnesses, surgeries, medications, allergies, and other factors provided by the owner or found in prior records. This is exactly what’s being documented when noting a patient’s medical history, so it’s the appropriate shorthand to use. Other abbreviations refer to different clinical details—MM typically denotes mucous membranes, NSR means normal sinus rhythm—so they aren’t used to capture the history portion of the chart. In practice you’d see notes like “Hx: owner reports previous vomiting episodes,” which reflects that history shorthand.

Hx stands for history, which is the information about a patient’s past illnesses, surgeries, medications, allergies, and other factors provided by the owner or found in prior records. This is exactly what’s being documented when noting a patient’s medical history, so it’s the appropriate shorthand to use. Other abbreviations refer to different clinical details—MM typically denotes mucous membranes, NSR means normal sinus rhythm—so they aren’t used to capture the history portion of the chart. In practice you’d see notes like “Hx: owner reports previous vomiting episodes,” which reflects that history shorthand.