Kathy Griffin says she hasn't been able to get tested for the coronavirus despite her "unbearably painful symptoms."

The 59-year-old comedian revealed on Twitter Wednesday that she's been sent to a "COVID-19 isolation ward in a major hospital ER" after visiting an urgent care facility. She shared a picture of herself laying in a hospital bed wearing a mask, although it's unclear when the photo was taken. 

Despite experiencing symptoms consistent with the coronavirus, Griffin said her attempts to get tested have been unsuccessful.

"The hospital couldn’t test me for #coronavirus because of CDC (Pence task force) restrictions," Griffin added, citing the vice president. 

USA TODAY has reached out to Griffin's rep for comment. 

He’s lying. I was sent to the#COVID19 isolation ward room in a major hospital ER from a separate urgent care facility after showing UNBEARABLY PAINFUL symptoms. The hospital couldn’t test me for#coronavirus because of CDC (Pence task force) restrictions.#TESTTESTTESThttps://t.co/18fRiOBsdNpic.twitter.com/0sU9fHu4r0

— Kathy Griffin (@kathygriffin)March 25, 2020

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Griffin shared her health update in response to a tweet from President Donald Trump, who boasted about the large number of Americans being tested for COVID-19. 

"Just reported that the United States has done far more 'testing' than any other nation, by far," Trump tweeted Wednesday. "In fact, over an eight day span, the United States now does more testing than what South Korea (which has been a very successful tester) does over an eight week span. Great job!"

Griffin fired back, tweeting, "He's lying."

The comedian's struggle to get a clear diagnosis appears to highlight the lack of accessibility to testing kits as the Trump administration scrambles to expand coronavirus testing across the country.

Nearly 433,545 Americans have been tested for COVID-19 as of Wednesday, according to the COVID Tracking Project website, which collects data from state health authorities.

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Griffin's heath scare is the latest hardship for the comedian. Last week, Griffin's 99-year-old mother, Maggie Griffin, died.

"My Mom, the one and only, Maggie Griffin, passed away," Griffin tweeted on March 17. "I am gutted. My best friend. I’m shaking. I won’t ever be prepared.” 

'I am gutted':Kathy Griffin's mother, Maggie Griffin, dies at 99