It will be weighed and checked for signs of dehydration or starvation. It will also be tested for internal parasites and other diseases. No vaccines are required for snakes but they should still be examined and tested for parasites annually. Varies but those sold in pet stores are typically easy to handle and non-aggressive. The size depends on the size of your snake, but don't forget to leave room for growth if your snake isn't an adult.
Snakes are cold-blooded animals.
Therefore, they must always be kept warm. They prefer temperature between 85 and 100 F degrees. They must also have a refuge from the heat to keep from getting too hot since they cannot perspire. The terrarium will need an open area at one end with a heat lamp for basking and hiding places on the other. Light bulbs can be used for heat but you must have a thermometer to monitor the temperature.