One doctor's experience in a mid-flight emergency opens questions about medical kits02:57

A couple of hours into her Delta Air Lines flight to Portugal earlier this month, Dr. Andrea Merrill heard the call to help a fellow passenger with a medical emergency. She approached the scene and was handed a red bag.

"They told me it was the medical kit, and I opened it up to see what's in there because I've never been in [an in-flight] medical emergency before," Merrill said.

What was in the kit surprised her. The blood pressure cuff, for example, was not an automatic one like those in hospitals. It was a manual one, which needed to be put together, and listening for a pulse with a less-than-optimal stethoscope.

"It's hard enough in a regular doctor's office to hear much with those stethoscopes, so you can imagine if you're 30,000 feet in the air on an airplane, it's super loud," Merrill said. "It was really impossible to hear anything and it just took some time to assemble this blood pressure cuff and then try to listen."

Merrill, who works as a surgical oncologist at Boston Medical Center, later found out that her experience wasn't an isolated one. It was one of many that other medical professionals have gone through, and highlighted long-standing calls to expand the required items in the emergency kits.

As she waited on the customs line to enter Lisbon, she turned to Twitter to give feedback to the airline about her experience. Her tweet blew up with replies.

Airlines pack the emergency medical kits following regulations from the Federal Aviation Administration (FAA). They can add more items than required, but sometimes, they fall short of what some medical professionals argue is needed.

Besides facing challenges with using a manual blood pressure cuff, Merrill was surprised to learn that there wasn't a glucometer to measure blood sugar, which she said would have been helpful in the situation.

And while there was epinephrine to treat allergic reactions – as required by the FAA – there was no Epi-Pen to make administration easier.

Other medical professionals replied to Merrill's tweet recounting similar experiences treating emergencies on air. They suggested that all kits should include naloxone, commonly known by the brand-name Narcan, to fight drug overdoses, or pulse oximeters to measure oxygen.

The reaction to Merrill's tweet didn't surprise Dr. Paulo Alves, the global medical director for aviation health at MedAire.

His company provides guidance from the ground during in-flight medical emergencies, and he's treated a few emergencies himself, so he's familiar with the contents of the kits.

"The last time the kit was modified was in 2004," Alves said. "It's a long time ago, right? And of course, it is understandable that the regulation doesn't evolve in the same pace as medicine; as the medical knowledge."

A few years ago, a committee within the Aerospace Medical Association sent recommendations to the FAA to update the kits – which included adding certain drugs like naloxone, as well as an EpiPen.

In a statement, the FAA said it was "reviewing the medical kit requirements," and in the meantime has issued guidance to airlines on additional items they can include in their kits. Congress also has the power to legislate changes to the kits.

Alves said that even before those changes come, travelers can trust there's a system in place to assist in-flight medical emergencies, which are relatively rare.

There is also support available for the medical professionals who volunteer to treat those emergencies, whether they are a nurse, doctor, veterinarian or dentist.