Dual-Channel Sweep Telemetry (Lead II & Invasive Arterial Line)
SWEEP 25 mm/s
Heart Rate (HR)
118 BPM
Blood Pressure (MAP)
104/68
Stroke Volume (SVI)
32.2 mL/m²
BUN / Creatinine
24.5 ratio
ELECTROPHYSIOLOGIC ALERT:
Fluid Deficit & Electrolyte Parameters
Patient: 75yo Male (68kg)
2.4 L
Normal ECF depletion reduces venous return (preload) via Frank-Starling curve.
3.2 mEq/L
Hypokalemia prolongs myocardial repolarization, causing QTc prolongation and U-waves.
High (Touring Stage)
Sweat evaporation causes hypotonic fluid loss and profound adrenergic overdrive.
149 mEq/L
Hypernatremia reflects unreplaced free water deficit (hypertonic dehydration).
Medical Case Reconciliation (Lionel Richie Hospitalization Event)
Pathophysiologic Summary: At 75 years of age, baseline ventricular compliance is reduced. Acute volume loss of 2.4L (approx. 5.5% body weight) diminishes central venous pressure, slashing stroke volume to 32 mL/m². The autonomic nervous system mounts intense sinus tachycardia (118 bpm) and peripheral vasoconstriction to sustain cerebral perfusion pressure. Concomitant hypokalemia (3.2 mEq/L) provokes delayed myocardial repolarization, manifesting as palpitations and premature ventricular contractions (PVCs). In emergency triage, this acute presentation is frequently reported as a primary cardiac event before lab confirmation of pre-renal hemoconcentration.