Articles & courses

ArticlesShow all 155
Chest Pain in the Emergency Department: Diagnostic Pathways

…upper back, abdomen, or epigastrium. Dyspnoea, nausea, vomiting, diaphoresis, fatigue, faintness, and other symptoms may occur without chest pain and should be considered anginal equivalents…

Reduction of dislocations

…gravity and slow movement; those that fail usually do so because the patient tenses up with pain, or because the operator pulls harder rather than…

Hypertensive crisis: quick reference for acute blood pressure lowering

…4. Measure the blood pressure in both arms at the first assessment, particularly in chest pain, back pain or suspected acute aortic syndrome. 5. Use…

Obesity and Cardiovascular Disease: Assessment and Treatment

…venous disease Reduced mobility Osteoarthritis and low back pain Symptoms of type 2 diabetes or metabolic syndrome Depression, low self esteem or body image disturbance…

Artifacts in ultrasound imaging

…and appear brighter on the image. Structures with low echogenicity reflect less ultrasound and become darker in the image. Acoustic shadowing Some structures have very…

Tissue Doppler (Tissue Velocity Imaging)

…study myocardial motion. Myocardial motion during systole and diastole alter the frequency of ultrasound waves that are reflected back to the transducer. There are two…

Spirometry

…The quality of the test determines its entire value: a poorly performed manoeuvre gives a falsely low FVC and thus a falsely normal FEV₁/FVC…

Cardiac electrophysiology: Action potential, automaticity and vectors

…de and repolarization ions (Na + [sodium], K + [potassium] and Ca 2+ [calcium]) flow back and forth across the cell membrane. Because ions are electrically charged…

Eletrical alternans: the ECG in pericardial effusion & cardiac tamponade

…ECG changes. Significant pericardial effusion may bring about the following ECG changes.: Low voltage: large amounts of pericardial effusion will diminish the QRS amplitudes. Electrical…

ST elevation myocardial infarction (STEMI) without ST elevations on 12-lead ECG

…among these patients, roughly 10% have hemodynamically significant right ventricular infarction. Hemodynamic effects of right ventricular infarction include low cardiac output, hypotension, sensitivity to drugs…

Media

No matches.

Tests

Tools