Narrative:

45 minutes prior to landing; I went to the lavatory. Passenger came to lavatory and told flight attendant she felt dizzy. Passenger laid on the ground and a doctor was called. I came out of lavatory and passenger was awake. Flight attendant got an O2 bottle and gave O2 to passenger. Doctor came up to help with passenger. I needed to return to cockpit so I told the doctor to move behind first class curtain in case this was a security threat. Passenger said she was ok; but she was on the flight attendant's jumpseat. I got lead flight attendant to act as a blocker with the galley cart while I called the first officer to explain what happened. I was confident that passenger was not a threat so I allowed her to sit on jumpseat while I called the first officer again to let me in. There was also a flight attendant sitting next to the passenger on jumpseat to assist. I returned to cockpit and called to lead flight attendant to keep me advised. I checked in with lead 2 times prior to landing and he said that passenger was ok and did not want assistance. This is a common occurrence and if I was not in the lavatory at the time; I would not deem this report necessary.

Google
 

Original NASA ASRS Text

Title: B737 Captain reported an ill passenger was in the cockpit door secure area as the Captain prepared to reenter; causing a security concern.

Narrative: 45 minutes prior to landing; I went to the lavatory. Passenger came to lavatory and told Flight Attendant she felt dizzy. Passenger laid on the ground and a doctor was called. I came out of lavatory and passenger was awake. Flight Attendant got an O2 bottle and gave O2 to passenger. Doctor came up to help with passenger. I needed to return to cockpit so I told the doctor to move behind first class curtain in case this was a security threat. Passenger said she was OK; but she was on the Flight Attendant's jumpseat. I got Lead Flight Attendant to act as a blocker with the galley cart while I called the First Officer to explain what happened. I was confident that passenger was not a threat so I allowed her to sit on jumpseat while I called the First Officer again to let me in. There was also a Flight Attendant sitting next to the passenger on jumpseat to assist. I returned to cockpit and called to Lead Flight Attendant to keep me advised. I checked in with Lead 2 times prior to landing and he said that passenger was ok and did not want assistance. This is a common occurrence and if I was not in the lavatory at the time; I would not deem this report necessary.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.