Conditions at sea during the callout were calm with good visibility and no sea swell.
The lifeboat arrived at Sherkin pier at 9.45pm, the casualty was brought onboard and the lifeboat departed the island within four minutes, handing the casualty over to the care of HSE ambulance crew at 10.08pm.
Speaking following the callout, Kate Callanan, Baltimore RNLI volunteer lifeboat press officer, said: “Baltimore RNLI regularly provides the vital service of medical evacuations (medevacs) for residents and visitors to local islands such as Sherkin, Cape Clear and Heir.
“If you find yourself in need of medical assistance, call 999 or 112 and ask for the coastguard.”
The all-weather lifeboat from Aran Islands RNLI and the inshore lifeboat from Galway Bay RNLI were among the many emergency service agencies that took part in a maritime mass rescue exercise.
The scenario training, which saw the lifeboat crew practise an evacuation of survivors from a seagoing ferry in a busy shipping lane, was organised as part of a multi-agency exercise co-ordinated by the Irish Coast Guard.
Among the other agencies involved were the Irish Coast Guard rescue helicopters located at Sligo and Shannon, Doolin/Inisheer Boat Unit, Costello Bay, Killaloe, Kilkee and Cleggan Coast Guard units, Galway Fire Service and the HSE.