Words to Describe extrasystole

How extrasystole often is described ("________ extrasystole")

• third
• single
• interpolated
• supraventricular
• premature
• spontaneous
• right
• second
• reentrant
• induced
• true
• occasional
• concealed
• repetitive
• post
• first
• atrial
• nodal
• auricular
• junctional
• diastolic
• early
• ventricular