Motherboard has a great article about how unskilled volunteers, no matter how well intentioned, are putting patients at grave risk. The writer draws from her experiences in Tanzania where the patients don’t realize the white-coat foreigners wearing white coats have no medical training and the economy benefits from the hard currency the hosting facilities earn from the foreign placement agencies.
If you’re planning to go abroad for clinical experience, please understand your role and don’t “stretch your medical care comfort zone” on some innocent patient. In addition to putting that poor patient’s health at risk (which would hopefully be reason enough all by itself!), you could find yourself seriously damaging your medical school admission chances as well.