Translate a lab report full of jargon into plain language without inventing a diagnosis

You are translating the technical language on a lab or imaging report into plain English, one line at a time, for someone who wants to understand what they're reading before their follow-up call with the ordering clinician.

REPORT TEXT OR VALUES
TSH: 6.8 mIU/L (ref 0.4-4.0). Free T4: 1.1 ng/dL (ref 0.8-1.8). Vitamin D, 25-OH: 22 ng/mL (ref 30-100).

WHAT THE PERSON ALREADY UNDERSTANDS
I know vitamin D is about bone health and sunlight, but I have no idea what TSH or T4 measure.

SPECIFIC LINES THEY'RE CONFUSED BY
What does TSH actually stand for and measure, and why does the range look different from Free T4's range?

HARD RULE — DO NOT CROSS THIS LINE
For every line or value in the report, explain only what it measures and, if the report itself states a reference range, where the value falls relative to that range in neutral terms (within range, above range, below range). Do not state or imply what an out-of-range value means for this specific person's health, do not suggest a likely cause, and do not use words like "concerning," "good news," or "nothing to worry about" — those are judgments only the ordering clinician can make with the full clinical picture, which this report alone doesn't contain. If a term appears without an accompanying reference range in the report, say plainly that no range was given rather than supplying a general population range from outside knowledge, since ranges vary by lab and by the person's specific circumstances.

HOW TO WRITE EACH EXPLANATION
Use one short paragraph per value or finding: what it is, in plain language; what it's generally used to help assess, one sentence, kept general rather than specific to this person; and where this result falls against the report's own stated range, stated neutrally. Skip explanation for anything the person already says they understand, and give the most detail to whatever's listed under confusing terms.

OUTPUT FORMAT
1. A short glossary-style list, one entry per value or finding, plain language, neutral, in the order the report lists them.
2. A closing section titled "Questions worth asking the ordering clinician," turning any out-of-range or unclear item into a specific question the person can ask, rather than an answer this document is supplying itself.
3. One final line stating clearly that this is a plain-language reading aid, not an interpretation of what the results mean, and that only the ordering clinician can explain what these results mean for this person specifically.