diff --git a/src/components/clinician/__tests__/clinician-view.test.tsx b/src/components/clinician/__tests__/clinician-view.test.tsx
index 91f475b2c..e04ee32b3 100644
--- a/src/components/clinician/__tests__/clinician-view.test.tsx
+++ b/src/components/clinician/__tests__/clinician-view.test.tsx
@@ -156,6 +156,37 @@ describe("<ClinicianView>", () => {
     expect(html).not.toContain("Current smoker");
   });
 
+  it("names both windows when a lab's report and the saved band disagree", () => {
+    // Two windows that disagree about the same number, and a card showing one
+    // of them is a partial answer. The PDF settles this with a footnote under
+    // the table; inline, both fit on the line.
+    const html = render(
+      makeReport({
+        labResults: [
+          {
+            panel: null,
+            analyte: "Potassium",
+            value: 5.2,
+            valueText: null,
+            unit: "mmol/L",
+            referenceLow: 3.9,
+            referenceHigh: 5.4,
+            catalogReferenceLow: 3.5,
+            catalogReferenceHigh: 5,
+            sourceReferenceText: null,
+            referenceOrigin: "source",
+            referenceDivergesFromCatalog: true,
+            takenAt: "2026-01-20T09:00:00.000Z",
+            count: 1,
+          },
+        ],
+      }),
+    );
+    expect(html).toContain("Potassium");
+    expect(html).toContain("Reference 3.9–5.4");
+    expect(html).toContain("saved range 3.5–5");
+  });
+
   it("renders the fenced wellness card with the descriptive disclaimer", () => {
     const html = render(makeReport());
     expect(html).toContain("Wellness scores");
diff --git a/src/components/clinician/history-sections.tsx b/src/components/clinician/history-sections.tsx
index ec3963162..d26545b5d 100644
--- a/src/components/clinician/history-sections.tsx
+++ b/src/components/clinician/history-sections.tsx
@@ -69,6 +69,10 @@ export function LabResultsSection({
         const reading = qualitative
           ? lab.valueText
           : `${fmtNum(lab.value as number)} ${lab.unit}`.trim();
+        const range = (low: number | null, high: number | null) =>
+          formatReferenceRange(low, high, (value) => String(fmtNum(value)), {
+            emptyText: "",
+          });
         // The window the reading was judged against, printed as the source
         // report printed it when that is where it came from, so a clinician
         // comparing against the original reads the same characters.
@@ -76,12 +80,15 @@ export function LabResultsSection({
           ? null
           : lab.referenceOrigin === "source" && lab.sourceReferenceText
             ? lab.sourceReferenceText
-            : formatReferenceRange(
-                lab.referenceLow,
-                lab.referenceHigh,
-                (value) => String(fmtNum(value)),
-                { emptyText: "" },
-              );
+            : range(lab.referenceLow, lab.referenceHigh);
+        // When the report's own window and the saved band disagree about the
+        // same number, both are named. Showing one of two disagreeing windows
+        // is a partial answer, and the PDF's footnote says so; here it fits on
+        // the line rather than under a table.
+        const catalog =
+          !qualitative && lab.referenceDivergesFromCatalog
+            ? range(lab.catalogReferenceLow, lab.catalogReferenceHigh)
+            : "";
         return (
           <StatRow
             key={`${lab.panel ?? ""}-${lab.analyte}`}
@@ -89,7 +96,10 @@ export function LabResultsSection({
             value={compose([
               reading,
               reference
-                ? `${t("doctorReport.labsColReference")} ${reference}`
+                ? `${t("doctorReport.labsColReference")} ${reference}` +
+                  (catalog
+                    ? ` (${t("doctorReport.labsCatalogRangeLabel")} ${catalog})`
+                    : "")
                 : null,
               fmtDate(lab.takenAt),
             ])}