Related Clues:

• ER doctor's '... and step on it!'
• "Now," to a nurse
• "ASAP!"
• Rush order of a sort
• Doctor's "Now!"
• 'Right now,' in the ER
• TKOs, e.g
• ER 'PDQ'
• Medical imperative
• Blocks, e.g
• 'Right away!,' in the E.R
• 'Right away!,' in the O.R
• R.B.I., for one
• Right away, to a nurse
• Walks or runs