Dr Adri Oosthuizen obtained her MBCHB in 1981 from the University of the Free State and did her intern year at the Universitas/Pelenomi complex in Bloemfontein.

At the end of 1982 she married Lt Casper Minnaar after which they moved to Saldanha and Langebaan where he completed his BCom degree. During this time Dr Adri worked as a civilian doctor for the SADF on the Airforce base at Langebaan Road. During this period, she ran a military hospital/sickbay with Dr Chris Elsworth. During 1984 she became the first female doctor to obtain an Aviation Medicine qualification from the SADF after which she started doing aviation medicine examinations on the Airforce Base for pilots. She also ran a casualty department for the water-ground operations done by the Recce Unit at the nearby Donkergat.

At the end of 1985 she returned to Bloemfontein where she started working at Tempe Military Hospital. Here she was mainly involved in the Gynaecological and Obstetric Departments. After 2 years she moved to the Department of Gynaecology at the Universitas Hospital where she worked in the Infertility Department for 14 years. During this period, she obtained her MFamMed from the Unversity of the Free State.

At the end of 2000 the family – Casper, Adri, Kobus and Jurgens – moved to Klerksdorp where she initially ran a Healthy Female Clinic form the rooms of Dr Piek and Nienaber. In 2002 she joined Dr Samuel Fourie at the Oncology Unit to help out with after-hour duties and to relieve him from long working hours by working at the Unit after her session at Piek and Nienaber and every second weekend. Due to this extra work load she stopped the Female Health Clinic work and restricted it only to Infertility.

Dr Fourie offered her a more permanent posting as a Research colleague. She acted as Sub-Investigator for several international studies and ran the Research Unit with Dr Samuel Fourie. Due to larger workload, studies were stopped, and Dr Adri is now mainly responsible for hospital patients and after hour work at the Unit.

She does part-time lectures for the clinical pharmacological students from the NWU.

Dr Adri has been president of the Klerksdorp SAMA branch and is still actively involved in SAMA.

The family enjoy camping, hiking, and are also active in the gym. They are keen travellers and enjoy travelling around Africa.