OLDCARTS mnemonic

What is the OLDCARTS mnemonic?

The OLDCARTS components provide a systematic framework for developing a clear history of present illness (HPI). OLDCARTS is a memory aid that helps clinicians ask consistent questions about a patient’s main symptom.

A history of present illness template can help clinicians organize the patient’s symptoms before moving on to the physical exam. In medical notes, the history of present illness (HPI) is usually included as part of the broader history and physical (H&P).

What does the OLDCARTS mnemonic stand for?

The OLDCARTS components map specific dimensions of a patient’s presenting symptom. Each letter represents a key part of a history of present illness sample:

• Onset: When the symptom began and whether it started suddenly or gradually.
• Location: Where the symptom is felt and whether it spreads anywhere else.
• Duration: How long the symptom lasts when it occurs.
• Character: What the symptom feels like, such as sharp, dull, burning, pressure-like, or throbbing.
• Associated or aggravating factors: Other symptoms, triggers, activities, or positions that occur with or worsen the main symptom.
• Relieving factors: Medications, rest, positions, or other measures that improve the symptom.
• Timing: How often the symptom occurs, whether it follows a pattern, and whether it appears at certain times of day.
• Severity: How intense the symptom is, often measured on a 1-10 scale, and how much it affects daily function.

How is the OLDCARTS mnemonic used in clinical practice?

Clinicians use OLDCARTS to keep the interview organized. The HPI is the part of the medical history focused on the patient’s current concern. It includes the patient’s own description of what is happening, including when the symptom started, where it is located, what it feels like, and what makes it better or worse.

This structured approach helps prevent important details from being missed. For example, timing can help distinguish symptoms that occur with exertion from symptoms that occur at rest, while severity helps show how much the symptom affects the patient’s daily life.

What are some examples of the OLDCARTS mnemonic in use?

A history of present illness example for chest pain might describe sudden onset during exertion, substernal location, and a pressure-like character. The clinician would also note aggravating factors such as walking and relieving factors such as rest.

For a headache, an example of history of present illness might describe gradual onset, one-sided location, throbbing character, several hours of duration, worsening with light, improvement with rest in a dark room, and moderate to severe intensity.

Reviewing history of present illness examples helps learners see how OLDCARTS can be adapted to different symptoms. A medical history example for chest pain will focus on exertion, radiation, and associated symptoms, while a headache example may focus more on triggers, pattern, nausea, and light sensitivity.

What are the most important facts to know about the OLDCARTS mnemonic?

• OLDCARTS provides a structured way to gather information about a patient’s main symptom.
• It helps clinicians build a clear history of present illness by organizing details such as onset, location, duration, character, associated or aggravating factors, relieving factors, timing, and severity.
• It works best when paired with open-ended questions, so the patient can first explain the problem in their own words.
• OLDCARTS can also be combined with the past medical history to understand how chronic conditions, medications, or prior illnesses may relate to the current symptom.