Appositives & InterruptersATI TEAS 7 cheat sheet

Renaming and setting off

6 key facts Reviewed Oct 2026

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Appositive

A noun phrase that renames the noun beside it
'Dr. Lee, the charge nurse, signed off.'

Punctuation

Nonessential → commas on both sides
Essential → no commas: 'My sister Ana is a nurse' (of several sisters)

Interrupters

however, therefore, of course — set off with commas

Test Cue

If removing it still identifies the noun, it needs commas

Key takeaway

Renaming and setting off

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