It is nearly impossible to tell if a dog has fever without taking his temperature first. One of the best outer signs that your dog may not be feeling well nor has fever is lethargy, meaning that he is just lying around not wanting to play, drink or eat.

If your dog’s temperature is over 104 degrees, you will need to get him to the vet. If it is below 104 degrees, keep him cool and hydrated.

If you are taking the temperature with a mercury thermometer, you will need to leave it in approximately three to four minutes before reading it.

To read the thermometer, gently slide it out of the rectum and wipe the inserted end off with either a baby wipe or a dry tissue.

Have someone assist you in keeping your dog still. If he is not feeling well, he may be more prone to biting.

If you are taking his temperature with a mercury thermometer, you will have to shake the mercury down. If you are using an electronic thermometer, it should be ready to go.

After reading the thermometer, wipe it down with an alcohol pad or a germicide wipe to ensure that it is clean.

Slowly and gently lift your dog’s tail to insert the lubricated end of the thermometer right inside of his rectum.

writen by: Heidi Gonzales on eHow

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