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Spirometry

…or an intracranial aneurysm Contact the responsible specialist An aortic aneurysm 6 cm Relative — avoid forced manoeuvres An ongoing respiratory infection with a risk of…

Lumbar puncture

…Investigation of dementia with biomarkers (amyloid, tau, phospho tau). Measurement of the opening pressure in suspected idiopathic intracranial hypertension. Therapeutic drainage in idiopathic intracranial hypertension…

Hyponatraemia: quick reference for work-up and correction

…Vomiting together with clear neurological impairment Respiratory failure or respiratory arrest Clinical signs of raised intracranial pressure or impending herniation Moderately severe symptoms New confusion…

Arterial Hypertension: Definition, Diagnosis and Out-of-Office Measurement

…hypertension: office pressure below the hypertension threshold but hypertensive home or ambulatory pressure. Office measurements provide only a limited representation of usual blood pressure and…

Capnography (end-tidal carbon dioxide measurement, ETCO2) during cardiac arrest

…Capnography refers to the measurement of end tidal carbon dioxide (ETCO 2 ) in the respiratory system. ETCO 2 is the partial pressure of carbon dioxide …

Assessment of diastolic function by echocardiography

…across the mitral valve using pulsed Doppler. Estimating left ventricular filling pressure via e' . Measurement of deceleration time (DT) . Diastolic function can be estimated from…

Principles of myocardial perfusion imaging (SPECT, PET), coronary blood flow and flow reserve (CFR)

…and parasympathetic influences; sympathetic stimulation leads to vasoconstriction through the release of norepinephrine, while parasympathetic activation can cause vasodilation via acetylcholine release. These mechanisms collectively…

Overview of the ECG Waves, Deflections, Intervals, Durations

…with its most common waveforms. Important intervals and points of measurement are depicted. ECG interpretation requires knowledge of these waves and intervals. The P wave…

Lipoprotein(a): Measurement and Clinical Implications

…high Lp(a) level may lead to substantial underestimation of cardiovascular risk. Conversely, Lp(a) measurement provides limited additional reclassification beyond currently recommended global risk…

Ejection fraction (EF): Physiology, Measurement & Clinical Evaluation

…or supranormal ejection fraction , despite manifest heart failure and severe symptoms. These individuals exhibit pronounced hypertrophy, resulting in a reduction of ventricular volume and subsequently…

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