…never happens, and to make sure the catheter does not become the patient's next focus of infection. Indications Infusion of vesicant solutions: vasopressors, concentrated…

…local practice Relative Skin infection, herpes zoster or burns over the puncture site Relative Mechanical ventilation with a high PEEP (an increased risk of pneumothorax…

…difficulties that prevent the patient from cooperating. Suspected base of skull fracture or marked coagulopathy argues against the nasal route; the oral route may then…

…and respiratory acidosis, or a markedly increased work of breathing with impending exhaustion. Threatened airway obstruction: inhalation injury, anaphylaxis, deep neck infection, an expanding haematoma…

Procedurer A corticosteroid injection into soft tissue gives rapid but time limited pain relief and rarely alters the natural history of the disease. In lateral…

…ST segment elevation followed by T wave inversion in leads V1 V4 in black athletes. C: PR interval <120 ms with a delta wave and…

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

…Although myocardial ischemia may affect every aspect of the ECG – from heart rhythm to QTc interval – the most prominent and reliable ECG changes occur in…

…sinus rate. In the AV node, adenosine produces a transient, rate dependent prolongation of the A H interval, frequently manifesting as transient first , second , or…

…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…