Causes of hypoventilation (discussed under Ventilatory Failure) include. 1  Conditions that impair CNS respiratory drive. 2  Conditions that impair neuromuscular transmission and other conditions that cause muscular weakness. 3  Obstructive, restrictive, and parenchymal pulmonary disorders.
Geographically, Phu Quoc island is located in the Gulf of Thailand, covering a total area of approximately 580 kmÂ², close to the main asian cites of Singapore, Bangkok, Hong Kong and Kuala Lumpur.
Hotels. While more expensive than the rest of Vietnam, Phu Quoc is still incredibly good value. For US$10 a night you can get a bungalow with hammocks and your own personal sunrise over the beach. The sky is the limit at the other end of the spectrum, if you choose to stay at one of the multi-star resorts.