Bibliographic record
Abstract
A 39 year old man presented to his general practitioner with a one day history of earache and discharge of bloody pus from his right ear. He reported having a cold during the week before the earache started. The doctor diagnosed him with acute otitis and prescribed amoxicillin with clavulanic acid. Overnight the patient developed headache, nausea, and vomiting and was referred to the emergency department of our hospital. In the emergency department he was systemically unwell with a blood pressure of 90/55 mm Hg, temperature of 39.5oC, and pulse rate of 100 beats/min. He had an altered mental status with agitated behaviour and he did not obey commands. He opened his eyes in response to voices, localised painful stimuli, and uttered inappropriate words. Physical examination showed neck stiffness without other neurological deficits. Laboratory results on admission showed a white cell count of 20.1×109/l, platelets 194×109/l, C reactive protein 252 mg/l, and serum glucose of 6.9 mmol/l. His arterial blood gas on 5 l of oxygen via a nasal cannula showed pH 7.45, partial pressure of oxygen 8.6, partial pressure of carbon dioxide 4.5, base excess −0.6, and standard bicarbonate 22.8. A chest radiograph was normal. The patient’s medical history was unremarkable. ### 1 What is the most likely diagnosis? #### Short answer The most likely diagnosis is bacterial meningitis. #### Long answer The classic triad of symptoms and signs of bacterial meningitis are fever, altered mental status, and neck stiffness, which were all present in our patient. This classic triad cannot be used to prove or exclude bacterial meningitis because it is absent in 56% of adults …
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.003 |
| Meta-epidemiology (narrow) | 0.002 | 0.001 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.002 | 0.001 |
| Scholarly communication | 0.001 | 0.002 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.004 | 0.004 |
| Insufficient payload (model declined to judge) | 0.008 | 0.003 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".