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Blood gas interpretation: quick reference for acid-base disorders

…sampling technique, air bubbles and analytical delay, and compare with the electrolyte panel Rapid classification pH pCO₂ HCO₃ Likely dominant process : : : : Low High Normal or…

Cardiac arrest due to pneumothorax

CPR Pneumothorax Pneumothorax is characterized by the presence of free air in the thoracic cavity. While this can occasionally be benign and manifest even in…

Acute severe asthma in adults: quick reference

…become calm, quiet in the chest and stopped struggling may be about to stop breathing. Diminishing wheeze means improvement only if air entry, speech, work…

Performing Echocardiographic Examinations

…possible due to the small distance between the heart and the ultrasound transducer, and because less air filled lung tissue covers the heart. In adults…

Physics of ultrasound

…through vacuum, sound waves can only propagate through a physical medium. This medium may consist of any matter, e.g air, water, metal, or tissue…

Acute exacerbation of COPD: quick reference

…than mild. 6. Assess the indication for antibiotics on the basis of sputum purulence, the other cardinal symptoms and the severity of the illness. 7…

Risk Factor Modification: The Evidence Base for Primary Prevention

…and alcohol consumption. Additional considerations include psychosocial stress, obstructive sleep apnoea, social determinants of health, air pollution, family history, ethnicity, and frailty. Primary prevention is…

Capnography (end-tidal carbon dioxide measurement, ETCO2) during cardiac arrest

…back to the lungs where it is exhaled. The final partial pressure of carbon dioxide in exhaled air represents the sum of ventilation, metabolic activity…

Arterial line

…cardiac arrest. Repeated blood gases, for example during mechanical ventilation or severe metabolic derangement. Major surgery with expected blood loss or large volume shifts. Patients…

Central venous catheter

…probe cover and sterile gel. Chlorhexidine in alcohol 5 mg/mL for skin disinfection. Allow it to air dry completely before puncture. Maximal barrier precautions:…

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