MEDICINE
CARDIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Sinus tachycardia
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Sinus bradycardia
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Normal sinus rhythm
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None of the above
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Detailed explanation-1: -In general, the normal heart rate in adults ranges between 60 and 100 beats per minute. However, normal variations do exist depending on the individual’s age and gender. Sinus rhythm with a rate above the normal range is called sinus tachycardia, and one below the normal range is called sinus bradycardia.
Detailed explanation-2: -Sinus bradycardia is a heart rhythm that’s slower than expected (fewer than 60 beats per minute in an adult) but is otherwise normal. It’s sometimes a symptom of certain heart conditions or problems, but it can also be a sign that a person is in very good shape because of regular exercise.
Detailed explanation-3: -Sinus rhythm is the name given to the normal rhythm of the heart where electrical stimuli are initiated in the SA node, and are then conducted through the AV node and bundle of His, bundle branches and Purkinje fibres. Depolarisation and repolarisation of the atria and ventricles show up as 3 distinct waves on ECG.