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Postural Tachycardia



    • How To Elicit

    • Measure the heart rate with the patient lying down, and then remeasure it after the patient has been standing for one minute.
    • Interpretation

    • Postural tachycardia is present if there is a rise of >20bpm following standing.
    • Causes of Postural Tachycardia

    • Reduced intravascular volume - dehydration, haemorrhage
    • Cardiac - congestive cardiac failure, cardiomyopathy, myocarditis, constrictive pericarditis, aortic stenosis
    • Drugs - nitrates, anticholinergics, antidepressants, antihypertensives, levodopa
    • Prolonged bed rest
    • Alcohol
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