Acute Cardiac Preload & Osmotic Dynamics

Starling Engine
Dual-Loop Hemodynamic Microstate Timeline Hour: 12.0 hrs
Left Atrial Press. (LAP) 24.5 mmHg Threshold: >20 mmHg (Fluid Leaking)
Plasma Volume Exp. +850 mL Baseline: 3,000 mL
Mean Arterial Press. (MAP) 100.5 mmHg Baseline: 92 mmHg
Stroke Volume (SV) 78 mL End-Diastolic Preload
⚠️
High (Acute Orthopnea / Dyspnea Threshold Exceeded)
Capillary hydrostatic pressure exceeds plasma oncotic pressure (25 mmHg). Plasma extravasation into alveolar spaces active!

Meal Load & Physiological Parameters

Timeline Scrubber (Hours Post Meal) 12.0 hrs
Dietary Sodium Intake (Lasagna Tray) 6,800 mg
Concomitant Fluid Bolus 2,200 mL
Baseline Cardiac Ejection Fraction (EF) 45% EF (Borderline)

Starling Osmotic Mechanisms

Ingesting 6,800mg sodium in a heavy lasagna meal rapidly raises extracellular osmolarity. Water shifts from intracellular spaces into systemic capillaries, expanding intravascular plasma by +850 mL. In a heart with borderline ejection fraction, this surge increases venous return and cardiac preload beyond compliance, spiking Left Atrial Pressure to 24.5 mmHg and pushing pulmonary capillary pressure past the Starling filtration threshold into alveolar flooding.

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