Lifestyle Health Heather McDonald Suffers Skull Fracture After Collapsing Onstage: 'I Felt So Dizzy' A rep for Heather McDonald tells PEOPLE the comedian was "admitted to a local hospital where a comprehensive work up [is] under way" By Glenn Garner Glenn Garner Glenn Garner is a form writer-reporter who worked heavily with PEOPLE's Movies and TV verticals. He left PEOPLE in 2023. People Editorial Guidelines and Nicholas Rice Nicholas Rice Nicholas Rice is a Senior Editor for PEOPLE Magazine. He began working with the brand as an Editorial Intern in early 2020, before later transitioning to a freelance role, and then staff positions soon after. Nicholas writes and edits anywhere between 7 to 9 stories per day on average for PEOPLE, spanning across each vertical the brand covers. People Editorial Guidelines Published on February 6, 2022 06:37PM EST Photo: Heather McDonald/Instagram Heather McDonald was hospitalized Saturday night after collapsing onstage during a standup comedy show. The Chelsea Lately alum, 51, suffered a skull fracture after fainting three minutes into her 7 p.m. set at the Tempe Improv in Tempe, Ariz., her rep tells PEOPLE, confirming that McDonald "was admitted to a local hospital where a comprehensive work up [is] under way." "Thus far the test have revealed no underlying medical issues that may have precipitated this event," her rep added, noting that she performed the night before with no incident and she didn't consume any alcohol before or during Saturday's show. Prior to her set, McDonald spent the morning with her son. Chelsea Handler Cancels Comedy Shows After Suffering Hospital 'Scare' McDonald's fainting spell does not appear to be COVID-related. Her rep also said she received a booster shot approximately three weeks ago and recently tested negative for coronavirus. Audience members told TMZ that the comedian collapsed after making a joke about being "vaxxed, double vaxxed, boosted," leading many to initially believe it was part of the act. An EMT and nurse, who happened to be in the audience, rushed to the stage to provide first aid. McDonald told the outlet she passed on an ambulance and had her sister-in-law drive her to the hospital. The Juicy Scoop podcast host gave her nearly 280,000 Instagram followers an update from her hospital bed on Saturday night, revealing that she fell on her eye. "So, I'm in the emergency room," McDonald began in a clip posted on her Instagram Story. "Oh my god, I'm so, so, so, so sorry. I passed out onstage. I got up, I did one joke and I felt so dizzy," she recalled, adding: "I cannot believe this happened. I feel so terrible that they had to tell everyone to leave and then cancel the second show. Tempe, I will be back. I've never ever fainted in my life." McDonald's health scare comes after her former colleague Chelsea Handler had to cancel multiple shows on her Vaccinated & Horny Tour comedy tour after suffering a health "scare" of her own. RELATED VIDEO: Ring Security Camera Saves Man's Life After He Collapses on Front Porch While Home Alone "I am so sorry I had to cancel my shows tonight in Portland and my show in Eugene. I had a scare at the hospital, and I don't have COVID, and I'm okay, but I had to reschedule my shows," Handler, 46, said Friday in a video on her Instagram Story. "So, I just wanted to say that, and I will see you all when I see you, and I'm sorry that I had to cancel. But I'm all OK. And I'm not pregnant," she added.