Cardiac Measurements — FHIR Questionnaire Template

Blood pressure, QT interval and heart rate with mean arterial pressure and corrected QT (Bazett and Fridericia).

Scoring

Calculated values only; each result stays empty until all of its inputs are answered.

Questions

1. Systolic blood pressure (mmHg)
2. Diastolic blood pressure (mmHg)
3. QT interval (ms)
4. Heart rate (beats per minute)

Calculated results

• Mean arterial pressure (mmHg)
• QTc, Bazett (ms)
• QTc, Fridericia (ms)

Source and license

Source: Standard estimate: (systolic + 2 × diastolic) ÷ 3; Bazett 1920; Fridericia 1920. Codes: LOINC.

License: Original wording written for this builder; covered by the project license (non-commercial use with attribution; commercial use needs written permission). Formulas are published methods; see the source. (link)

Provided to save authoring effort, not as medical advice — confirm the scale and its cut-offs for your use case.

Use it

1. Download the FHIR Questionnaire JSON, or
2. open the Builder, choose + Add → From template…, search for “Cardiac Measurements” and insert it. It arrives as one titled group with its calculations wired, and you can keep editing it.

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This material contains content from LOINC (loinc.org). LOINC is copyright © Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee and is available at no cost under the LOINC license.