US Federal Reserve chairwoman Janet Yellen was seen by medical personnel as a precaution after she “felt dehydrated at the end of a long speech under bright lights” in Massachusetts.
The 69-year-old “felt fine afterwards” and resumed her schedule, the Fed said.
Ms Yellen was delivering a 23-page speech on inflation at the University of Massachusetts-Amherst.
Towards the end of her speech she paused twice for a period of several seconds, staring down at her text.
She then resumed speaking and concluded the speech, with the audience applauding.
Ms Yellen received a plaque from officials, who then helped her off the stage.
The Fed said in a statement that “as a precaution, she was seen by (emergency) staff on-site”.