Procedurer The single most important step in any eye injury is to measure and document the visual acuity before anything else is done. The second…

Procedurer The laryngeal mask is the single most important tool when intubation fails, since it restores oxygenation without requiring a view down into the larynx…

Cardiology SPECT vs. PET In SPECT (Single Photon Emission Computed Tomography), radiotracers emit gamma photons directly. These gamma rays are detected by gamma cameras to…

…raised pressure without organ involvement — lower it orally over days. Hypertensive emergency: raised pressure with acute organ damage (encephalopathy, pulmonary oedema, aortic dissection, acute renal…

[calc_map] Mean arterial pressure (MAP) represents the average pressure within the arteries throughout a single cardiac cycle, encompassing both systole and diastole. It is…

…Myocardial ischemia and infarction Definition and Clinical Purpose Myocardial perfusion imaging (MPI) with single photon emission computed tomography (SPECT) or positron emission tomography (PET) is…

… A single blood pressure value does not define a hypertensive emergency. Even a blood pressure above 220/120 mmHg can occur without acute organ damage…

…ECG 2 . Spontaneous termination of ventricular tachycardia (VT). ECG 3 . A single ventricular beat, followed by a three ventricular beats (VT). ECG 4 . Regular supraventricular…

…the bedside. The check against the patient's own identity immediately before transfusion is the single most important safety measure in the entire chain. In…

…simple — bicarbonate and a look at the urine dipstick — but it fails routinely for one single reason: without normal potassium the urine cannot be alkalinised…