Guaiac-based tests for occult blood in stool suffer from a number of drawbacks, leading to a reduction in their sensitivity as well as production of false-positive results. These drawbacks include: Detection of heme present in the stool, which can originate from bleeding anywhere in the gastrointestinal tract. Inability to distinguish human heme from heme present in many foods, such as dietary meats. Indiscriminate detection of peroxidase activity, which is present in a wide range of fruits and vegetables.
As in most tourist islands, there are two Anguilla's... 1) The Tourist Anguilla. Most visitors to Anguilla want to be on the beach, have room service and/or at least the service and feeling of a hotel or the privcay of a villla. The tourist Anguilla generally ranges from $250/night to $30,000/night (not a typo!).
The best way to get around Anguilla is in a taxi, as the island is too spread out to explore on foot. You'll find the drivers make excellent tour guides, and driving yourself around town could be problematic, given the unpaved roads and virtually nonexistent street signs. valid travel document, preferably a passport, is required to visit Anguilla. You'll also need to present proof of return flights or continuing travel when you arrive, and you should expect up to $20 as a departure tax when leaving.