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MedMathMindset Provider Math Atlas · EMT

EMT math, one domain at a time.

This free guide turns the current MedMathMindset EMT math blueprint into a practical map: every included domain, its MedMathMindset instructional weight, one worked example, and a quick reasonableness check.

Blueprint snapshot

12 domains · 100% total instructional weight

Domains are shown from highest to lowest MedMathMindset blueprint weight. The weights are MedMathMindset instructional blueprint weights used to organize provider-relevant quantitative training; they should not be interpreted as an official credentialing-body exam percentage unless an official source explicitly states that.

Higher weight = more emphasis in MedMathMindsetEvery domain gets at least one worked example
Use it three ways

Teach · review · print

Use the examples as a quick class reference, a learner review sheet, or a printable PDF. For repeated practice and performance signals, continue into the provider-specific Performance Challenge or enrolled MedMathMindset pathway.

Domain 1 of 12

Oxygen Cylinder Duration

Oxygen Cylinder Duration is included because it matches expected quantitative work for this provider level. EMT scope emphasizes oxygen logistics, simple medication support, burns/BSA, and field operations; advanced infusion/titration domains are excluded.
12%MMM blueprint weight
Example

An E cylinder reads 1800 psi. Use a 200 psi reserve and a factor of 0.28. At 4 L/min, approximately how many minutes remain? Round to the nearest minute.

Setup / reasoning

(1800 − 200) × 0.28 ÷ 4 = 112, about 112 min.

Answer

112 min

Quick check

Subtract the intended reserve before applying the cylinder factor and flow rate.

Domain 2 of 12

Oxygen Delivery

Oxygen Delivery is included because it matches expected quantitative work for this provider level. EMT scope emphasizes oxygen logistics, simple medication support, burns/BSA, and field operations; advanced infusion/titration domains are excluded.
12%MMM blueprint weight
Example

Using the common nasal-cannula estimate of about 24% at 1 L/min plus about 4 percentage points per additional L/min, estimate FiO₂ at 3 L/min.

Setup / reasoning

24% + 2 × 4% ≈ 32%. This is an approximation, not a measured FiO₂.

Answer

32 %

Quick check

Make sure the oxygen quantity and flow use compatible units before dividing.

Domain 3 of 12

Unit Conversions

Unit Conversions is included because it matches expected quantitative work for this provider level. EMT scope emphasizes oxygen logistics, simple medication support, burns/BSA, and field operations; advanced infusion/titration domains are excluded.
12%MMM blueprint weight
Example

Convert 750 mg to g.

Setup / reasoning

Use the 1000:1 metric relationship; the result is 0.75 g.

Answer

0.75 g

Quick check

Confirm the direction of the conversion and that the final unit is exactly the requested unit.

Domain 4 of 12

Dimensional Analysis

Dimensional Analysis is included because it matches expected quantitative work for this provider level. EMT scope emphasizes oxygen logistics, simple medication support, burns/BSA, and field operations; advanced infusion/titration domains are excluded.
10%MMM blueprint weight
Example

Available: 10 mg in 2 mL. The ordered dose is 30 mg. How many mL will deliver the ordered dose?

Setup / reasoning
? mL= 2 mL10 mg × 30 mg1
Target units stay on the left. The first factor on the right begins with the provided relationship that carries the target unit; matching units then cancel across the chain.
Answer

6 mL

Quick check

Unwanted units should cancel cleanly, leaving only the requested final unit.

Domain 5 of 12

Ratios / Proportions

Ratios / Proportions is included because it matches expected quantitative work for this provider level. EMT scope emphasizes oxygen logistics, simple medication support, burns/BSA, and field operations; advanced infusion/titration domains are excluded.
10%MMM blueprint weight
Example

A 2:5 relationship is maintained. If the second quantity becomes 20, what is the first quantity?

Setup / reasoning

2/5 = x/20; x = 8.

Answer

8

Quick check

Cross-products should agree when the two ratios are truly equivalent.

Domain 6 of 12

Medication Dose Calculations

Medication Dose Calculations is included because it matches expected quantitative work for this provider level. EMT scope emphasizes oxygen logistics, simple medication support, burns/BSA, and field operations; advanced infusion/titration domains are excluded.
8%MMM blueprint weight
Example

Available: 10 mg in 2 mL. The ordered dose is 30 mg. How many mL will deliver the ordered dose?

Setup / reasoning

30 × 2 ÷ 10 = 6 mL.

Answer

6 mL

Quick check

At a fixed concentration, a larger desired dose requires a proportionally larger volume.

Domain 7 of 12

Percentages

Percentages is included because it matches expected quantitative work for this provider level. EMT scope emphasizes oxygen logistics, simple medication support, burns/BSA, and field operations; advanced infusion/titration domains are excluded.
8%MMM blueprint weight
Example

What is 25% of 80?

Setup / reasoning

25% × 80 = 20.

Answer

20

Quick check

The result should be the stated fraction of the whole; compare its magnitude with 0% and 100%.

Domain 8 of 12

Whole Number Operations

Whole Number Operations is included because it matches expected quantitative work for this provider level. EMT scope emphasizes oxygen logistics, simple medication support, burns/BSA, and field operations; advanced infusion/titration domains are excluded.
8%MMM blueprint weight
Example

A supply area starts with 24 counted items, adds 18, then uses 11. How many remain?

Setup / reasoning

24 + 18 − 11 = 31.

Answer

31 items

Quick check

Reconcile the starting quantity, additions, and use; the ending count should fit the story.

Domain 9 of 12

Fractions / Decimals

Fractions / Decimals is included because it matches expected quantitative work for this provider level. EMT scope emphasizes oxygen logistics, simple medication support, burns/BSA, and field operations; advanced infusion/titration domains are excluded.
6%MMM blueprint weight
Example

Write 3/4 as a decimal.

Setup / reasoning

3 ÷ 4 = 0.75.

Answer

0.75

Quick check

For a proper fraction, the decimal should fall between 0 and 1.

Domain 10 of 12

BSA / Burns

BSA / Burns is included because it matches expected quantitative work for this provider level. EMT scope emphasizes oxygen logistics, simple medication support, burns/BSA, and field operations; advanced infusion/titration domains are excluded.
5%MMM blueprint weight
Example

Using 4 mL × kg × %TBSA, what is the 24-hour fluid estimate for a 70 kg patient with 20% TBSA?

Setup / reasoning

4 × 70 × 20 = 5600 mL.

Answer

5600 mL

Quick check

Verify that the formula, body weight, and %TBSA are the intended inputs before interpreting the estimate.

Domain 11 of 12

Weight-Based Dosing

Weight-Based Dosing is included because it matches expected quantitative work for this provider level. EMT scope emphasizes oxygen logistics, simple medication support, burns/BSA, and field operations; advanced infusion/titration domains are excluded.
5%MMM blueprint weight
Example

A 70 kg patient is ordered 0.1 mg/kg. What dose is ordered?

Setup / reasoning

70 × 0.1 = 7 mg.

Answer

7 mg

Quick check

Check that the weight unit matches the dose unit before multiplying.

Domain 12 of 12

Provider Operations Math

Provider Operations Math is included because it matches expected quantitative work for this provider level. EMT scope emphasizes oxygen logistics, simple medication support, burns/BSA, and field operations; advanced infusion/titration domains are excluded.
4%MMM blueprint weight
Example

A device has 600 usable units and consumes 10 units each minute. Ignoring reserve, how many minutes will it run?

Setup / reasoning

600 ÷ 10 = 60 minutes.

Answer

60 min

Quick check

A quantity divided by a consumption rate should produce a time or capacity that fits the operating context.

Important scope note

Educational examples, not patient-specific clinical direction

These examples are designed to make quantitative relationships visible. They do not replace local protocols, medication references, device instructions, scope-of-practice requirements, official credentialing test plans, or clinical judgment. MedMathMindset uses the provider blueprint to organize math practice—not to redefine professional scope.

MedMathMindset.com · EMT Math Atlas · Printable provider math reference