Nurse Iris Zink donated her kidney to longtime patient and friend Ginny Holcomb
                                
                                
                                    (Newser) -
                                    Everyone hopes for a caring and compassionate nurse when they're ailing, but one Michigan woman's caretaker went "above and beyond the call of duty," per  Becker's Hospital Review . For more than 15 years, nurse practitioner Iris Zink has treated Ginny Holcomb at Lansing Rheumatology, and...