You can do several replaces in one shot as follows

using the Replace All Clipboard Command several times in a row:

{Ctrl A}{Wrap}
{CopySelection}{Wrap}
{ReplaceAllClipboard}
wholeWord = "y"
matchCase = "n"
preserveCase = "n"
findWhat = "biopsy"
replaceWith = "bx"
{/ReplaceAllClipboard}{Wrap}
{ReplaceAllClipboard}
wholeWord = "y
matchCase = "n"
preserveCase = "n"
findWhat = "patient"
replaceWith = "pt"
{/ReplaceAllClipboard}{Wrap}
{ReplaceAllClipboard}
wholeWord = "y"
matchCase = "n"
preserveCase = "n"
findWhat = "left"
replaceWith = "lt"
{/ReplaceAllClipboard}{Wrap}
{Paste}

replaces all occurences of biopsy by bx, of patient by pt, of left by lt .....