1,277 questions. One blueprint.
An internal-medicine QBank, written by internists against the ABIM blueprint, reviewed by our editors, and finished with a full teaching explanation on every question. Try one — no account needed.
A 58-year-old man with kidney failure has weakness and palpitations. ECG shows peaked T waves and QRS widening. Which intervention should be given first?
K+ 7.2 mEq/L · HR 48/min · BP 102/64 mm Hg
Test. Review. Track. Export.
Test
Build a session from any mix of the 12 systems — 50 questions, timed or untimed.
Review
Every question ends with a full teaching explanation and references, not just a letter answer.
Track
Analytics score you by system, so your weakest area is always the next thing you study.
Export
Save any question as a flashcard, take notes, and export straight to Anki in one click.
Three ways to run a block.
The same modes you'll see in the app — resume any session where you left off.
Timed mode
Simulate the real thing — 50-question blocks against the clock, scored like exam day.
Untimed mode
Full blocks without the clock. Work through complete sessions at your own pace, then review.
Tutor mode
See the answer and full explanation after every question — built for learning, not just testing.
Every system. Counted, not estimated.
These counts come straight from our question database — updated as our editors publish.
The explanation is the product.
A letter answer teaches you nothing. Every Indigo question closes with the reasoning — why the right answer is right, why each distractor is wrong, and the reference to go deeper.
- Full teaching explanation on all 1,277 questions
- References linked to the Indigo library
- Difficulty-rated and keyword-tagged for search
IM-0618 · NEPHROLOGY
✓ A — 3% hypertonic saline. Hyperkalemia with ECG changes requires immediate IV calcium to stabilize the cardiac membrane before shifting potassium or removing it from the body.