…clean with a tracheostomy or copious secretions Subclavian vein Most comfortable for the patient, the most stable dressing, lowest risk of infection and thrombosis with…

…safe triangle (Figure 1). Outside it the risk of injuring the diaphragm, liver, spleen or internal thoracic artery increases. For diagnostic aspiration the point chosen…

…complex or the T wave. The whole value of the investigation lies in the ratio between the number of atrial and ventricular complexes — more atrial…

…A score of 3 or more indicates a difficult intubation — call for help and get out the videolaryngoscope and plan B before you give the…

…40 mm for subacromial and trochanteric injection; 25–27 G, 25 mm for the carpal tunnel, de Quervain's and trigger finger. Syringes of 3…

…the onset of physical activity. Profound sinus bradycardia (<30 beats/min or sinus pauses ≥3 s) would warrant further investigation. 6. Which of the following…

…intrauterine device or a pessary. Assessment of prolapse. Sampling for a suspected sexually transmitted infection — although chlamydia and gonorrhoea can be tested on urine or…

…that the reference level for measuring deviation (elevation or depression) of the ST segment is the PR segment (the terminal portion of the PR interval)…

…rate dependent prolongation of the A H interval, frequently manifesting as transient first , second , or third degree AV nodal block lasting up to a few…

…Short PR interval : The PR interval is <0.12 seconds. Delta wave : depolarization of ventricular myocardium will start where the accessory pathway inserts into the…