Cardiac Measurements, ECG Findings, and Heart Conditions
Cardiac Measurements and Normal Values
This section provides normal values for various cardiac measurements obtained during echocardiography.
- KSGDD (LV): N (Upper limit): 56
- Indskas: N (Upper limit): 29
- TSP (Interventricular Septum): N: 9-10
- KSUS (Posterior Wall): N: 9-10
- KS MM (LV): M: 105, W: 95
- Mass Index: M: 105, W: 95
- SSS (Relative Wall Thickness): [Table Data Missing – Requires Calculation]
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ECG Interpretation and Cardiovascular Management Essentials
ECG Interpretation and Cardiovascular Management
ECG Lead Locations and Waveform Analysis
- II, III, aVF: Inferior leads
- V1 & V2: Septal leads
- V3 & V4: Anterior leads
- I, aVL, V5 & V6: Lateral leads
Electrode Placement
RA (White), LA (Black), V (Brown)
Intervals and Segments
- PR Interval: 0.12-0.20 seconds
- Shorter PR: Impulse from AV junction
- Longer PR: First-degree AV block
- QRS Interval: 0.06-0.12 seconds
- QT Interval: 0.39-0.43 seconds (Predisposes to Torsades de Pointes, intensified by low calcium
Pharmacology Quick Reference: Anticoagulants, Anemia, and Antiarrhythmics
Anticoagulants
Unfractionated Heparin (UFH)
- Mechanism: Antithrombin III, Xa/IIa
- Dosage:
- Loading dose & continuous infusion: 80 units/kg load, 18 units/kg/h infusion
- Prophylaxis: 5000 units subcutaneously
- Contraindications: HIT (Heparin-Induced Thrombocytopenia), hypersensitivity, thrombocytopenia, active bleeding or risk of bleeding
- Monitoring: aPTT (activated Partial Thromboplastin Time), baseline and every 6 hours until 2x therapeutic level; goal 1.5-2.5x baseline
- Reversal Agent: Protamine sulfate
