Dr. Frans J. Cronjé Practice
MBChB (UP), BSc(Hons), MSc (Aerospace), DOM
Designated Senior Aviation Medical Examiner
Diving Medical Examiner - Class II (Air)
Occupational Medical Practioner
Near Tygervalley, Ridgeworth (Bellville)
PLEASE NOTE: Dr Frans & Sr Lucie Cronje have accepted a training and clinical position in Aerospace and Hyperbaric Medicine at the American Mission Hospital in the Kingdom of Bahrain.
The South African practice will not be active in their absence.
The Booking tab will not be active.
Note there is now also a LIGHT BLUE BUTTON with a list of all Senior DAME's in CT area and a
DARK BLUE BUTTON with all the Diving Medical Practitioners in South Africa on a Map with their details as you Zoom in.
Kindly make appointments with them.
All your records are available to them through the SACAA EMPIC system or SAUHMA Database, so your visit to them should be simple and without any difficulty. I appreciate your support of our practice. Some of you have been with us for many years, and we will miss you. With great appreciation. Dr Frans & Sr Lucie Cronje
Oxygen Toxicity
Oxygen is a reactive and metabolically essential gas. When breathed in diluted, sub-atmospheric partial pressures (20.95 % of 1 atmosphere), it supports aerobic metabolism and its toxicity is buffered by the body's defenses. However, as a partial pressure of 0.5 atmospheres of oxygen is exceeded, it starts to produce pulmonary toxicity, and above 1.4 to 1.6 atmospheres, it may precipitate oxygen toxicity seizures within a short but unpredictable period of time.
This presentation reviews the nature and manifestation of oxygen toxicity from a practical standpoint.