science

MDCalc

MDCalc is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand MDCalc rather than just read about it. In short: MDCalc is a free online medical reference for healthcare professionals that provides point-of-care clinical decision-support tools, including medical calculators, scoring systems, and algorithms. MDCalc is also a mobile and web app.

Key takeaways

MDCalc belongs to science; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect MDCalc to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of MDCalc from memory before moving on to harder problems.

Reference excerpt

MDCalc is a free online medical reference for healthcare professionals that provides point-of-care clinical decision-support tools, including medical calculators, scoring systems, and algorithms. MDCalc is also a mobile and web app. The decision-support tools are based on published clinical research, and MDCalc’s content is written by physician authors.

History MDCalc was founded by two emergency physicians, Graham Walker and Joseph Habboushe, and provides over 500 medical calculators and other clinical decision-support tools. The MDCalc.com website was launched in 2005. In 2016, MDCalc launched an iOS app, followed by an Android app in 2017. A 2017 survey estimated 65% of U.S. attending physicians and 79% of U.S. resident physicians use MDCalc regularly.

References

External links Official Website

Worked examples

Example 1 — a first encounter with MDCalc

Start with the simplest possible case. Write down what MDCalc claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to MDCalc before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about MDCalc ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of MDCalc

In research: MDCalc appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses MDCalc in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: MDCalc is common in secondary-school and first-year university syllabi. It links to neighbouring topics American medical websites, Health information technology companies, Medical websites, so understanding it makes those chapters shorter.
In everyday life: Look for MDCalc outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study MDCalc in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what MDCalc means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain MDCalc out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is MDCalc in simple terms?

Why does MDCalc matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study MDCalc?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on MDCalc.