Newswise — As a clinical nurse specialist with the Incompatible Kidney Transplant Program at The Johns Hopkins Hospital, Janet Hiller, MSN, RN, often hears about patients who are getting sicker while waiting to find donors. Wanting to help, Hiller decided to run her name through the tissue typing database in late 2009. “It only takes one new donor to stimulate a lot of matches,” she says. Out of a pool of 100 recipients, she was a match for one, a young woman in her 20s, whose name was surprisingly familiar to her.

Earlier that year, the same young woman was scheduled to be part of a national kidney exchange at Hopkins. A program like this often begins with an altruistic donor who offers his kidney to Patient 1. A friend or relative of Patient 1 donates a kidney to Patient 2, whose friend or relative donates to Patient 3, and so on. But one donor had to drop out of the exchange for medical reasons. That left the young woman without a donor. Two months later, in early 2010, Hiller donated her kidney.

“It’s easier than a lot of people think it is,” says Hiller, who has never met the recipient. Hopkins employees who become living donors get an additional four weeks of leave to recover from surgery. As for long-term complications, “It has been four years since [my donation], and I feel absolutely no different. There aren’t even any scars.”

Since 1954, when the first such donation took place, there have been more than 50,000 living kidney donors, according to the National Kidney Registry. Most donors at Hopkins give a kidney directly to a loved one or participate in a paired exchange. But there are also a few Good Samaritan donors like Hiller who donate a kidney to anyone in need.

[Transplant Team's Guiding Hands]

For Susan Humphreys, PhD, RN, kidney donation was the second item on her bucket list. (The first was to complete her doctoral dissertation.) The Johns Hopkins Hospital nurse manager became interested in donating when she started taking yoga lessons and reading Eastern philosophy three years ago. Realizing that she was a healthy 64-year-old woman who had never had surgery, “I wanted to do something with my good health,” she says.

Humphreys donated her kidney in early 2014. A week later, her recipient, a woman in her 20s, wanted to meet her at the hospital. There, Humphreys found out that the woman had been on dialysis after losing the kidney her mother gave her when she was a child. “It’s very special to get to know your recipient and to incorporate them into your close relationships,” Humphreys says. They continue to keep in touch through Facebook.

No matter how committed they are, Good Samaritan donors naturally have doubts at some point during the process, especially if loved ones aren’t completely supportive of the decision. Hiller’s youngest daughter, 15 at the time, was concerned about complications.

“Her dad said, ‘There is a 1 in 10,000 chance that mom could die,’ ” Hiller says. “All she could hear is, ‘Mom could die.’ She didn’t hear [the odds].” Because of her reaction, “I thought seriously about [the idea of donating] in relation to her and the family. If my family wasn’t OK with it, then I wouldn’t do it.” After they talked more about the surgery, Hiller’s daughter eventually agreed she should go through with it.

Humphreys—who also has a daughter who was initially upset about her decision—was anxious about the surgery herself. Having once worked in the kidney program, “I know that things can go wrong, and I know no one is immune to [that],” she says. Humphreys also worried whether her kidney would work with the recipient, considered a “high-risk” patient because of her history.

Humphreys actually talked to Hiller about these concerns. “She was reinforcing to me that at some point you decide [to donate] regardless of the risks,” Humphreys says.

And on surgery day, Humphreys had a “wonderful experience.”

“[Donating] gave me joy and that very deep feeling of being interconnected with people in the world,” she says. “If I had two kidneys [to spare], I’d do it again.”

Read moreThis article appears in Johns Hopkins Nursing magazine.