Hey Phooey,
Don't be alarmed by the worms...
just go to a vet and buy good brand of wormer, Drontal is probably the best. Make sure you know the weight of your dog first. Better to slightly over do it than to under do it.
i would not bother taking a sample to the vet. they will most likely reach for the drontal anyway! if the worms are there AFTER the drontal, then you may need to take a sample in. don't gross yourself out unnecessarily!
Worming really should be done every 3 months for outdoor dogs. If you use a heartworm tablet, they will do most worms, but not tapeworms, so it is still necessary to worm them every few months to get rid of those. do remmeber that the worming medications are only in the system for a day or so - there is no protective effect, they only kill the worms that are there at that time.
If your dog is not on heartworm medications, it would be wise to have a blood test done at a vet, then start the heartworm prevention asap, as heartworm can be lethal. Though the risk is very low on modern medicines, it can also be a bad move to start the medications without a heartworm blood test, as potentially the medications can kill adult and all microscopic heartworms that are present, causing a systemic shock. It is best to talk to your vet about this.
And yes, worm the family too. anyone who handles animals should be wormed regularly too.
have fun with the dogs fettucine, vermicelli or whatever it looks like
DDF