DPF Series - Hyperchloremia as a Directional and Timing Failure: The full geometry of pressure inversion when downward exits are lost, Lantern of Sulfur, Concept A', v2026.03

Version note: v2026.04 replaces v2026.03 due to a non-conceptual correction; the theoretical content and scope are unchanged.Hyperchloremia is commonly treated as a minor electrolyte abnormality, a renal issue, or a benign consequence of intravenous fluid administration. In a subset of patients, this framing fails to explain severe symptom burden, paradoxical dehydration, intolerance to chloride-heavy fluids, constipation-linked deterioration, transient relief with bile flow, and cardiovascular strain without primary myocardial disease. This preprint proposes that hyperchloremia—particularly when associated with non–anion gap metabolic acidosis (NAGMA)—can represent a directional failure of physiologic pressure resolution, compounded by loss of circadian timing tolerance. When intracellular actuation fails, bile-mediated clearance is deliberately withheld, physical exit through gut motility collapses, and pressure cannot resolve downward. The system preserves stability instead through vascular tone, autonomic activation, and chloride retention—producing an inverted, containment-based pressure field. The framework integrates electrolyte chemistry, intracellular hydration, bile flow, motility, vascular tone, and hypothalamic timing into a single causal geometry. It explains why laboratory values may remain deceptively normal, why bicarbonate or saline can worsen symptoms, why relief often follows bile flow rather than laboratory correction, and how functional cardiac strain (including some presentations of reduced ejection fraction) can arise downstream of systemic pressure inversion rather than primary myocardial failure. This work is intended for clinicians and researchers in cardiology, nephrology, gastroenterology, endocrinology, and systems physiology, as well as for interdisciplinary audiences examining timing-dependent failure modes in biological regulation. It emphasizes direction, sequencing, and exit integrity over dose-based correction and provides a mechanistic basis for understanding why “correct” interventions can fail when applied at the wrong time.Series lineage: This paper is part of the Lantern of Sulfur DPF Series (v2026.xx), a standalone extension of the LoS Unified framework; it does not revise earlier releases.Navigation: Master Index and Conceptual Map. DOI: 10.5281/zenodo.17915492 This work is part of the Lantern of Sulfur (LoS) framework, a systems-level model of electrolyte balance, RAAS signaling, and physiological coordination.