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Lung function and respiration

…TLC Total lung capacity, which requires body plethysmography DLCO Diffusing capacity for carbon monoxide An obstructive pattern: FEV₁/FVC below the lower limit of normal…

Nasogastric tube

Procedurer The insertion itself is rarely the difficult part — it is the confirmation of the position that determines whether the tube is safe. A misplaced…

Artifacts in ultrasound imaging

…Refraction artifact Reflection and refraction occur when ultrasound passes tissue boundaries. Tissue boundaries represent acoustic reflectors at which some of the ultrasound energy is reflected…

Oxygen therapy

…lower part of the target range. Paraquat poisoning — oxygen worsens the lung injury. Discuss with your national or regional poison control centre. An open flame…

Stress Echocardiography: Protocols and Interpretation

…coronary artery disease (CAD). It combines echocardiographic assessment of left ventricular (LV) structure and function with exercise or pharmacological stress. The physiological basis is an…

Amiodarone: Loading, Maintenance Dosing and Monitoring Schedule

…are rarely useful, as myocardial concentration—which correlates best with total cumulative dose—may be a better predictor of long term tolerability. Hemodynamic Effects Amiodarone…

Short and long-term prognostication in cardiac arrest

…stunning . This is a protective mechanism since the cessation of contractions leads to a marked reduction in cell metabolism and thus prolongs survival. Myocardial stunning…

Arterial Hypertension: Definition, Diagnosis and Out-of-Office Measurement

…category of elevated blood pressure, defined as office SBP 120–139 mmHg or DBP 70–89 mmHg. This distinction supports a risk based approach because…

Atrial fibrillation: quick reference for emergency management

…in atrial fibrillation Criteria for dose reduction according to FASS : : : Apixaban 5 mg × 2 2.5 mg × 2 if at least two of: age ≥ 80…

Ivabradine: Indications, Dosing and Heart-Rate Targets

…By inhibiting the intracellular portion of its transmembrane pore, ivabradine reduces the slope of diastolic depolarisation and produces a dose dependent reduction in sinus rate…

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