Proofreading Service - Pain in the English
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Username

p.smith

Member Since

May 16, 2012

Total number of comments

1

Total number of votes received

5

Bio

Latest Comments

Do’s and Don’t's

  • May 16, 2012, 7:00pm

As a medical transcriptionist and medical editor, the AAMT Book of Style is my reference, and it states: Use 's to form the plural of lowercase abbreviations, but no apostrophe following all-capital abbreviations.

rbc's not rbcs or RBC's
WBCs
EEGs

Use 's to form the plural of single letters and symbols, i.e., serial 7's.

For numbers, add s without an apostrophe. Exception: With single numerals, add 's:

500s
She is in her 20s.
6's and 7's