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Try the math.Then check our working.
6 problems from the full bank, generated fresh each time you press next. Nobody typed the answers — they are computed by the same tested code the paid drills run, and every one names the book and page it came from.
Practice problems
Drawing a problem...
Answers are checked in your browser and nothing is saved. Reload and the tally starts over.
Where that number came from
Study material for this exam is mostly someone’s spreadsheet, and the arithmetic in it has usually never been checked by anything. Here is what stands behind each answer above, in the order it happens.
The source
A worked example someone printed
Each problem is built on a scenario from one of seven ECC textbooks — and on an example that book works through to a printed answer, not just a formula it states. Where a book gives the formula and no example, the problem does not get written.
The arithmetic
Nobody typed the answer
Your numbers are drawn fresh, then the answer is calculated by the same code the calculators run. A test re-runs that code against the book’s own example on every build. For a wrong answer to reach you, a test would have to fail first.
The margin
How close counts, stated up front
Set per problem, not once for everything: 1% where the arithmetic is clean, 5% for resting energy requirement, because hand-rounding an exponent legitimately lands in different places. A single margin would either fail correct work or pass wrong work.
What you are not seeing
The preview draws from 6 of the bank’s 42 problem types. Compounding — the heaviest family, and the one this exam leans on hardest — is not in it.
| Family | In the bank | Here |
|---|---|---|
| CRI / infusion compounding | 14 | — |
| Unit conversions | 8 | 1 |
| Electrolytes / acid-base | 4 | 1 |
| Fluid therapy | 4 | 1 |
| Hemodynamics | 4 | — |
| Oxygenation / ventilation | 4 | 1 |
| Transfusion | 2 | 1 |
| Nutrition | 1 | 1 |
| Renal | 1 | — |
Sourced from Silverstein & Hopper, Creedon & Davis, DiBartola, Drobatz, Plunkett, Norkus and Battaglia.
The rest of the bank
Every problem type above, plus the question bank, mock exams, the drug appendix and a study plan weighted to the published blueprint.
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