Bibliographic record
Abstract
HYPONATREMIA, OFTEN DEFINED AS SERUM SODIUM LESS THAN 130 mmol/L, is the most common electrolyte disturbance among hospitalized patients. A complication of a variety of diseases, surgical treatments, or drugs, it may be hypertonic, hypotonic, or isotonic in nature. Antidiuretic hormone (ADH) is also known as arginine vasopressin (AVP). Produced in the posterior pituitary gland in response to an increased plasma sodium concentration, it induces water retention. It increases cellular permeability to water in the distal tubule and collecting duct of the nephron, leading to increased water resorption by the kidney. The syndrome of inappropriate antidiuretic hormone secretion (SIADH) is characterized by either the sustained release of ADH in the absence of stimuli, or by the enhanced action of ADH on the kidneys. Increased ADH activity impairs the kidney’s ability to dilute urine, resulting in decreased excretion of ingested water and a highly concentrated and decreased volume of urine. If fluid intake is not sufficiently reduced in the setting of increased ADH activity, serum hypotonicity and hyponatremia will occur. Patients with SIADH will present with normal volume status (euvolemic) because the excess water distributes evenly throughout the body’s fluid compartments. Causes of SIADH include malignant diseases (e.g., carcinoma, lymphomas, sarcomas), pulmonary disorders (e.g., pneumonia, asthma), central nervous system disorders (e.g., meningitis, stroke, head trauma), and a number of medications.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
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 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.001 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.008 | 0.001 |
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".