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ArticleLungmedicin
Acute exacerbation of COPD: quick reference

Lungmedicin Akutsjukvård Lathundar Key messages Two things set the COPD exacerbation apart from many other causes of acute dyspnoea: oxygen must be titrated cautiously and…

ArticleProcedurer
Joint aspiration

…fluid. The aspiration is technically simple — what determines the outcome is that it is done early and sterilely and that the samples are sent correctly…

ArticleProcedurer
Spirometry

…determines its entire value: a poorly performed manoeuvre gives a falsely low FVC and thus a falsely normal FEV₁/FVC. Set aside time, coach actively…

ArticleEchocardiography
Continuous Wave Doppler (CW Doppler)

…two different sets of piezoelectric crystals; one set for sending ultrasound and the other for analyzing reflected sound waves. The cardinal difference between continuous wave…

ArticleProcedurer
Casting and immobilisation

…calcium sulfate) Mouldable, cheap, heavier, less strong, takes longer to set Synthetic cast material (fibreglass) Lighter, stronger, radiolucent, tolerates moisture better, more expensive and stiffer…

ArticleProcedurer
CPAP and non-invasive ventilation (NIV)

…Undrained pneumothorax. Facial trauma, facial burns or recent facial surgery that make a seal impossible. Recent surgery on the oesophagus or upper gastrointestinal tract, ileus…

ArticleEchocardiography
The ultrasound transducer

…the principle of ultrasound imaging is simple: sound waves are sent into the tissue and the reflected waves are used to create an image of…

ArticleProcedurer
Arterial line

…a smaller size in children. A set with an integrated guidewire (Seldinger technique) helps when the vessel is difficult to puncture. Sterile preparation with chlorhexidine…

ArticleProcedurer
Central venous catheter

…should be changed or removed once the situation has stabilised. Preparation and equipment A central line set with a triple lumen catheter, usually 7 Fr…

ArticleProcedurer
Endotracheal intubation

…within reach under the pillow or by the right shoulder. A reservoir mask with a tight fitting seal, a separate nasal cannula for apnoeic oxygenation…

ArticleProcedurer
Laryngeal mask and difficult airway

…6 over 100 kg 50 mL The volumes are maxima — inflate to a seal and check that the cuff pressure does not exceed 60 cmH₂O …

ArticleProcedurer
Oesophageal ECG

…3. Set the filter: a frequency range of about 15–40 Hz , and adjust the gain so that the atrial deflections are clear without clipping…

ArticleProcedurer
Oxygen therapy

…simple mask, a mask with a reservoir, a Venturi mask with a set of valves, and a high flow nasal cannula where available. Bag mask…

ArticleProcedurer
Paracentesis

…22 G needle, 20 mL and 50 mL syringes. Therapeutic drainage: a commercial paracentesis set or a catheter over needle, 16–18 G, connected to…

ArticleProcedurer
Pericardiocentesis

…spinal needle or the needle from a pericardiocentesis set), 10 mL and 20 mL syringes, a three way tap. A Seldinger set with a guidewire…

ArticleProcedurer
Pleural aspiration and chest drain

…commercial aspiration set or a 6–8 F pigtail catheter, a drainage bag or a vacuum bottle. Drainage: a chest drain, an underwater seal unit…

ArticleContinous medical discussion: the ECG blog
A new ECG biomarker for sudden cardiac death

…with better discrimination. The missing ingredient has been a training set large enough to link raw waveforms to reliable cause of death data. The current…

ArticleECG
Assessment of Pacemaker Malfunction

…yields an activation. The pacemaker is then set to the minimum energy needed to activate myocardium (a safety margin is often used). Most pacemakers perform…

ArticleECG
Interpretation of Pacemaker ECG

…activity below the base rate will trigger pacing. The base rate is usually set to 60 beats/min. The base rate is virtually always 50…

ArticleCardiology
Management of bradycardia (bradyarrhythmia)

…Identify signs of heart failure, hypoperfusion (assess skin temperature, color, sweat). Table 1. Initial evaluation of bradycardia according to ABCDE. Symptoms of bradycardia Bradycardia may…

ArticleEchocardiography
Pulsed Wave Doppler

…pulsed wave Doppler). Pulse repetition frequency (PRF) The number of ultrasound pulses sent per second is called pulse repetition frequency (PRF) . PRF is determined by…