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Hussain Sharifi

Fictional composite example

Sample Clarity Brief

A fictional composite, shown in full.

Sam is not a real person. The dates, records and results were created for this example. No real client’s records or conversations appear here. The seven cited sources are real public documents.

A client Brief uses the same nine-section structure.

BRIEF 01 Version 1.0 Sample record cutoff 7 July 2026 Evidence cutoff 8 August 2026 Revision round unused

1. The question, stated in one line

One sentence, agreed with the client before anything else is written, so the whole Brief answers the same question.

"Do my differing thyroid and iron results explain three months of exhaustion and unrefreshing sleep, and what should be tested or asked before my next GP conversation?" · Wording agreed with Sam on the preparation call, 4 July 2026.

2. The written timeline

Every entry is date · event · where it came from, so any reader can trace any line back to a record or a conversation.

  1. March 2026 · Energy dropped over two to three weeks; sleep stopped refreshing and concentration at work became noticeably harder · Sam's account on the preparation call
  2. Early April 2026 · Started a hair and nails supplement, taken on most mornings since; whether it was taken on either test morning is not recorded · Sam's account on the preparation call
  3. 13 April 2026 · Private screening panel: TSH 5.1 mIU/L against that laboratory's 0.27 to 4.2 range, free T4 within range, ferritin 18 micrograms per litre flagged low, and a full blood count reported without an anaemia label · the private laboratory report
  4. 2 June 2026 · NHS repeat, more than six weeks after the private test: TSH 3.8 mIU/L and free T4 both within that laboratory's ranges, ferritin 22 micrograms per litre near the low end of that laboratory's range · the GP practice record
  5. 1 July 2026 · GP letter: no diagnosis is made; it asks for a dated comparison of the two result sets with their exact assays and reference ranges, current symptoms, medicines and supplements, any bleeding or menstrual history if relevant, diet, and the full blood count values · the clinician letter
  6. 4 July 2026 · Preparation call: the one-line question above agreed in writing · the preparation call

3. Facts, uncertainties and questions, kept apart

Three lists that never blur: what the records establish, what remains uncertain, and what nobody has answered yet.

What is established

  • Sam has had roughly three months of reduced energy, unrefreshing sleep and impaired concentration (Sam's account on the preparation call).
  • The April private panel reported TSH slightly above that laboratory's reference range with free T4 within range, ferritin flagged low, and a full blood count not labelled anaemic (the private laboratory report).
  • The June NHS repeat, taken more than six weeks later, reported TSH and free T4 within that laboratory's ranges and ferritin near the low end (the GP practice record).
  • UK guidance interprets thyroid results against the testing laboratory's own reference ranges, notes that biotin can interfere with some thyroid assays, and describes when and how repeat testing is appropriate (NICE guideline NG145, source 1).
  • UK guidance on iron deficiency distinguishes iron deficiency anaemia from low iron stores without anaemia, and ties that distinction to the full blood count values (the BSG guideline, source 4).

What is uncertain

  • Whether the April TSH was a genuine transient rise, a difference between the two laboratories' assays and ranges, or an artefact of unrecorded supplement timing: the two reports cannot settle this between them.
  • Whether the low-end ferritin contributes to the fatigue: the full blood count values have not been compared side by side, and the history the GP letter asks for has not yet been taken.
  • How much of the fatigue belongs with the sleep pattern itself rather than with any blood result: the sleep has not been assessed as its own problem.

What has not been answered

  • What the comparison the GP letter asks for will show once the dates, assays, ranges and full blood count values sit side by side. Nobody had assembled it before this Brief.
  • Whether any bleeding, menstrual or dietary history is relevant to the iron picture. Only the fuller history the letter requests can answer that, and only a clinician can take it.

4. The options already on the table, compared

The three routes actually in front of Sam, on the same criteria. No option is chosen, ranked or recommended here: the Brief lays them side by side so the conversation can decide.

Option as offered What it would involve What is known What it cannot answer Cost as known to Sam
Take the assembled comparison to the GP follow-up Bring this Brief's dated comparison, the supplement timeline and the letter's history items to the booked follow-up appointment. The GP letter asked for exactly this material, and the practice already holds both result sets (the clinician letter). It cannot say why the two TSH results differ. Only the comparison read with a clinical history can approach that, and a further test may still be needed afterwards. No charge on the NHS route.
Repeat thyroid function and ferritin privately, sooner Arrange a private repeat panel before the GP follow-up, with the supplement paused as the laboratory directs. Guidance ties repeat timing and interpretation to the testing laboratory's own ranges and notes biotin interference with some assays (NICE guideline NG145, source 1). A third number cannot interpret itself. Without the assay details, the supplement timing and the fuller history, another result may add noise rather than settle the question. Not yet quoted to Sam; no figure is assumed here.
Watch and wait without further testing Keep a simple symptom and sleep log and return only if things change or worsen. Persistent tiredness has many common contributors, and sleep itself is one of them (NHS tiredness and fatigue, source 5; NHS insomnia, source 6). It cannot explain the results already in hand, and it leaves the GP letter's specific questions unanswered while time passes and the picture stays unassembled. No cost.

5. Questions for the next clinician conversation

Seven questions, written so they can be read aloud in an appointment. Each one comes from an uncertainty above, so each has a reason behind it.

  1. Reading the two reports side by side, each against its own laboratory's reference range and with the exact dates, do the thyroid results actually disagree, or do the ranges explain the difference?
  2. Could test timing, a different assay, or the biotin in the hair and nails supplement have affected either thyroid result, and how would we know?
  3. Which thyroid test would you repeat, and when, given the guidance on repeat timing?
  4. Taken together, do the full blood count and the two ferritin values point to iron deficiency anaemia, iron deficiency without anaemia, or neither yet?
  5. What history or examination would you want before interpreting the iron picture, including bleeding, menstrual and dietary history if relevant?
  6. Should the fatigue and the unrefreshing sleep be assessed as their own problem alongside the blood results, rather than waiting on them?
  7. What specific change in symptoms or results would make an earlier review sensible, and what interval is reasonable if nothing changes?

6. Sources

Real, current, publicly published documents, each opened and checked on the evidence cutoff date. Each entry says what it supports here and what it does not cover.

  1. NICE guideline NG145: Thyroid disease, assessment and management (updated 12 October 2023; page reviewed 3 October 2025). Supports: interpreting TSH and free T4 against the testing laboratory's own reference ranges, biotin interference with some thyroid assays, and repeat-testing timing. Does not cover: any individual result, or anything about Sam.
  2. NHS: Underactive thyroid (hypothyroidism) (page reviewed 28 April 2025). Supports: what an underactive thyroid is and the common symptoms attributed to it. Does not cover: interpreting borderline or conflicting results between laboratories.
  3. NHS: Iron deficiency anaemia (page reviewed 26 January 2024). Supports: what iron deficiency anaemia is, its common causes and the role of blood testing. Does not cover: low iron stores without anaemia, or any supplement dose.
  4. British Society of Gastroenterology guidelines on iron deficiency anaemia in adults (published 8 September 2021). Supports: distinguishing iron deficiency anaemia from iron deficiency without anaemia, and grounding that distinction in the full blood count. Does not cover: Sam's values, or any treatment decision.
  5. NHS: Tiredness and fatigue (page reviewed 2 June 2023). Supports: the range of common contributors to persistent tiredness and when to see a GP. Does not cover: ranking causes for any individual.
  6. NHS: Insomnia (page reviewed 19 March 2024). Supports: what disturbed and unrefreshing sleep involves and the first self-help routes. Does not cover: whether sleep explains Sam's fatigue.
  7. NICE guideline NG206 (page reviewed 24 January 2025). Supports: the principle that ongoing fatigue deserves a holistic assessment and the exclusion of other explanations before any label. Does not cover: Sam's case; it is cited for that assessment principle only, and nothing in this Brief suggests any diagnosis for Sam.

7. Evidence cutoff and last reviewed

A Brief is honest about when its reading stopped. Anything published after the cutoff is not in it.

  • Sample record cutoff: 7 July 2026, the date after which no record in this fictional case is included. The two clocks are separate on purpose: records close when the client's material closes, sources close when the reading stops.
  • Evidence cutoff: 8 August 2026, the day every linked source above was last opened and checked.
  • Last reviewed: 8 August 2026, when this sample was assembled for publication.
  • Correction round: none used yet; the one factual-correction round included in every Brief remains available.

8. Family summary

Half a page in plain language, written so someone who loves the client can understand the situation without medical vocabulary.

Sam has been much more tired than usual for roughly three months, sleeps badly, and had two blood tests at two different places. The first test said the thyroid signal was a little high and the iron store was low. The second test, six weeks later at the GP's laboratory, said the thyroid numbers were in the normal range and the iron store was near the bottom of normal. That sounds contradictory, but different laboratories use different equipment and different normal ranges, a vitamin supplement Sam takes can interfere with some thyroid tests, and levels genuinely move over weeks. Nobody has said anything is wrong, and nobody has said everything is fine: the honest position is that the two tests have not yet been read side by side with the dates and details that make them comparable. Sam's GP has asked for exactly that comparison, plus some ordinary history questions. This Brief assembles it, and lists the questions worth asking at the next appointment, so the conversation starts from the whole picture rather than from two loose reports.

9. What a Brief never contains

The permanent exclusions, printed in every Brief, because the boundary is part of the product.

  • A diagnosis.
  • A prescription, or any change to medication.
  • A treatment recommendation, or a choice between treatments.
  • An interpretation of scan images.
  • Anything that replaces your GP, your specialist or your pharmacist.

The Brief prepares the conversation; clinical decisions stay with you and your clinician.

What happens after a Brief like this one? Each month of Monthly Follow-Through closes with a one-page update. Read the Sample What Changed update, version 1.1 of this same case.

Start with your question