The 18-year-old will be assisting medical staff at the Mwananyamala Regional Hospital in Dar es Saalam on the east coast of the Third World country.
''I can't even pronounce the name of the hospital. Let's hope I don't have to answer the phones there.''
The hospital is a large government-run 24/7 outpatient and in-patient facility with 240 beds, and 62 doctors treating an average of 1500 patients a day.
Hannah said she would be following the doctors around the hospital, observing their work and carrying out simple tasks such as helping with blood samples.
She hopes to study bio-medical science in Auckland next year in the hope of becoming a doctor.
However, she wanted to make sure she was making the right career choice first.
She said the adventure was not only an opportunity to help a struggling country, it was also a journey of self discovery.
''Because the road to becoming a doctor is really long and difficult, I wanted to make sure that medicine is something that I really want to do before I get started.
''There's no point in getting halfway through training and finding it's not for me.''
Hannah finished her NCEA Level 3 examinations this week, and will depart for Tanzania on December 11, where she will spend about a month.
Although she would be away from home for Christmas and her birthday on January 8, Hannah was not worried.
''I'm hoping to make some friends there, so hopefully I won't feel too alone.''
She said she would be living with a Tanzanian family, which would give her a base in her foreign surrounds.
Hannah has already begun packing, and in the meantime, as the clock counts down to her departure, she is working on her pronunciation of Mwananyamala Regional Hospital.
