diff --git a/frontend/src/pages/QuizPage.jsx b/frontend/src/pages/QuizPage.jsx
index f74c7be..2551338 100644
--- a/frontend/src/pages/QuizPage.jsx
+++ b/frontend/src/pages/QuizPage.jsx
@@ -1172,11 +1172,15 @@ const timerStarted = timeLeft !== null
     const marked = favorites.includes(q.id)
     // Only questions the learner has reached show their text. Previewing one
     // they have not opened would give away the case before they read it.
-    const seen = seenIndexes.has(i)
+    //
+    // In exam mode none of them do. A real paper's status rail is a column of
+    // numbers, and reading the stems of the questions still to come is not
+    // something the exam being rehearsed would allow.
+    const seen = !isStudy ? false : seenIndexes.has(i)
     const excerpt = seen ? questionStem(q).replace(/\s+/g, ' ').trim() : ''
     return (
       <button type="button"
-        className={`quiz-rail-item${isActive ? ' is-active' : ''}${isDone ? ' is-done' : ''}${seen ? '' : ' is-unseen'}`}
+        className={`quiz-rail-item${isActive ? ' is-active' : ''}${isDone ? ' is-done' : ''}${seen ? '' : ' is-unseen'}${isStudy ? '' : ' is-numbers'}`}
         aria-current={isActive ? 'true' : undefined}
         onClick={() => { safeNavigate(i); setNavOpen(false) }}>
         <span className="quiz-rail-num">
diff --git a/frontend/src/pages/QuizPage.test.jsx b/frontend/src/pages/QuizPage.test.jsx
index eff90ec..a704a37 100644
--- a/frontend/src/pages/QuizPage.test.jsx
+++ b/frontend/src/pages/QuizPage.test.jsx
@@ -101,6 +101,26 @@ describe('quiz player', () => {
     expect(within(after[1]).getByText('Full second clinical question.')).toBeInTheDocument()
   })
 
+  it('shows numbers and nothing else in exam mode', async () => {
+    await begin(false)
+    const items = document.querySelectorAll('.quiz-rail-item')
+    expect(items).toHaveLength(2)
+
+    // A real paper's status rail is a column of numbers. Reading the stems of
+    // the questions still to come is not something the exam being rehearsed
+    // would allow — so not even the one you are on shows its text.
+    expect(within(items[0]).getByText('1')).toBeInTheDocument()
+    expect(within(items[0]).queryByText('Full first clinical question.')).not.toBeInTheDocument()
+    expect(items[0].className).toMatch(/is-numbers/)
+
+    await userEvent.click(items[1])
+    await findStem('Full second clinical question.')
+    const after = document.querySelectorAll('.quiz-rail-item')
+    // Reached, and still a number: this is not the study rail's reveal.
+    expect(within(after[1]).queryByText('Full second clinical question.')).not.toBeInTheDocument()
+    expect(after[1]).toHaveAttribute('aria-current', 'true')
+  })
+
   it('marks answered questions in the rail', async () => {
     await begin()
     const before = document.querySelectorAll('.quiz-rail-item')
diff --git a/frontend/src/pages/QuizPlayer.css b/frontend/src/pages/QuizPlayer.css
index 24b196f..cb44406 100644
--- a/frontend/src/pages/QuizPlayer.css
+++ b/frontend/src/pages/QuizPlayer.css
@@ -17,6 +17,18 @@
 }
 .quiz-rail-item:hover { background: #f4f6fb; }
 .quiz-rail-item.is-unseen { padding: 7px 8px; }
+
+/* Exam mode: a column of numbers and nothing else.
+   A real paper's status rail says which items you have answered and which you
+   marked, and no more than that — the stems of the questions still to come are
+   not something the exam being rehearsed would show you. */
+.quiz-rail-item.is-numbers { padding: 5px 8px; }
+.quiz-rail-item.is-numbers .quiz-rail-num {
+  width: 22px; height: 22px; font-size: .72rem;
+  border-radius: 4px; background: none; color: #6f767f;
+}
+.quiz-rail-item.is-numbers.is-done .quiz-rail-num { background: none; color: #327b64; font-weight: 700; }
+.quiz-rail-item.is-numbers.is-active .quiz-rail-num { background: #496fa5; color: #fff; }
 .quiz-rail-item.is-active { background: #eaf0fa; border-left-color: #496fa5; color: #253038; }
 .quiz-rail-num {
   flex-shrink: 0; width: 26px; height: 26px; border-radius: 50%;