Narrative:

Once airborne; the C flight attendant came to the back galley and informed me someone had put something in the a [flight attendant]'s water. I decided to go up front and check on her. When I arrived; she was on the phone with the pilots. When she got off the phone; she showed me her water bottle and it was a milky cloudy substance that had a strange odor I had never smelled before. I advised her that when we land she needed to complete [a report] and call [company operations center]. She said she felt fine and didn't think it was necessary.later in the flight; the C flight attendant went forward so they could let the pilots out to use the lavatory. A few minutes later; I was paged over the PA to come forward. I quickly went to the front to find 2 passengers and the C [flight attendant] in the front galley. I saw that the a [flight attendant] was laying on the jumpseat. I sat her up and asked if she had any allergies and if she was taking any medicine. She said [drug] and then her eyes rolled back and she fell back again. The C [flight attendant] paged for medical assistance and a physician came forward with his medical license card in hand. I verified and allowed him access to [the C flight attendant]. He used the emk to check vitals and was going to initiate an iv for fluids to help bring her blood pressure down. However; the a [flight attendant] came around and was able to talk with the physician. The pilots attempted to establish a patch with [airborne medical] but were unsuccessful. The physician recommended that the a [flight attendant] remain seated and try to relax for the rest of the flight. We relocated the a [flight attendant] to seat 1C and she remained there until we arrived at the gate in ZZZ.the physician remained in close proximity of the a [flight attendant] should her condition deteriorate in the remainder of our decent. I asked that the C flight attendant begin to close down the forward and aft galley while I went and collected medical notes and gathered relevant information from the a [flight attendant] as well. The C [flight attendant] and I agreed and advised the pilots that I would remain forward and occupy the 1L inbound jumpseat for landing and the C [flight attendant] would occupy the aft jumpseat for landing. The pilots advised that EMS would meet the flight upon arrival.

Related reports:

Google
 

Original NASA ASRS Text

Title: Flight Attendant reported that another Flight Attendant became ill after consuming a cloudy drinking water.

Narrative: Once airborne; the C Flight Attendant came to the back galley and informed me someone had put something in the A [Flight Attendant]'s water. I decided to go up front and check on her. When I arrived; she was on the phone with the pilots. When she got off the phone; she showed me her water bottle and it was a milky cloudy substance that had a strange odor I had never smelled before. I advised her that when we land she needed to complete [a report] and call [company operations center]. She said she felt fine and didn't think it was necessary.Later in the flight; the C Flight Attendant went forward so they could let the pilots out to use the lavatory. A few minutes later; I was paged over the PA to come forward. I quickly went to the front to find 2 passengers and the C [Flight Attendant] in the front galley. I saw that the A [Flight Attendant] was laying on the jumpseat. I sat her up and asked if she had any allergies and if she was taking any medicine. She said [drug] and then her eyes rolled back and she fell back again. The C [Flight Attendant] paged for medical assistance and a physician came forward with his medical license card in hand. I verified and allowed him access to [the C flight attendant]. He used the EMK to check vitals and was going to initiate an IV for fluids to help bring her blood pressure down. However; the A [Flight Attendant] came around and was able to talk with the physician. The pilots attempted to establish a patch with [Airborne Medical] but were unsuccessful. The physician recommended that the A [Flight Attendant] remain seated and try to relax for the rest of the flight. We relocated the A [Flight Attendant] to seat 1C and she remained there until we arrived at the gate in ZZZ.The physician remained in close proximity of the A [Flight Attendant] should her condition deteriorate in the remainder of our decent. I asked that the C Flight Attendant begin to close down the forward and aft galley while I went and collected medical notes and gathered relevant information from the A [Flight Attendant] as well. The C [Flight Attendant] and I agreed and advised the pilots that I would remain forward and occupy the 1L inbound jumpseat for landing and the C [Flight Attendant] would occupy the aft jumpseat for landing. The pilots advised that EMS would meet the flight upon arrival.

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.