If you are having trouble affording emergency veterinary care, there are many resources available to provide assistance.

IMOM
Dedicated to better the lives of sick, injured and abused companion animals and to insure that no companion animal has to be euthanized simply because their caretaker is financially challenged. Allows owners to fundraise for their pets’ care via their website. Also has limited funds for emergencies, blind dogs, diabetic pets, and those with chronic renal failure. 
http://www.imom.org

The Pet Fund
Provides financial assistance to owners of domestic animals who need urgent veterinary care. Companion animal owners must often make the difficult decision to put an animal down or neglect urgent medical needs because of the costs involved. The purpose of the Pet Fund is to work towards a future where decisions about companion animal medical care need never be made on the basis of cost. The Pet Fund also provides information to owners about preventative care, pet insurance programs, and financial services that will ensure that pet owners are able to develop financial resources on their own and thus avoid future emergencies through care and planning.
Tel: (916) 443-6007
http://www.thepetfund.com

Help-A-Pet
Provides financial assistance for the medical care of pets whose owners are unable to afford the expense. Focus on serving the elderly, the disabled, and the working poor.
Tel: (630) 986-9504
Fax: (630) 986-9141
http://www.help-a-pet.org

Feline Veterinary Emergency Assistance Program
Provides assistance to cat/kitten guardians who are unable to afford veterinary services to save their companions when life-threatening illness/injury strikes. Focus on seniors, people w/ disabilities, people who have lost their job, Good Samaritans who rescue a cat or kitten.
FVEAP
1641 Elizabeth Lane
Yuba City, CA 95993
Fax: 888-301-4264
http://www.fveap.org

LABMED
Will provide monetary assistance toward emergency medical expenses for Labrador Retrievers or Lab-mixes who are abandoned or in a rescue situation and for whom no other funding is available or is insufficient.
http://www.labmed.org

Labrador Life Line
Aids purebred Labrador Retrievers in need of new homes, urgent medical care, or other assistance in order to live a full and productive life.  Provides assistance to dogs:

  1. currently in or will be placed in rescue situations;
  2. dogs currently at shelters with whom LLL has a current Memorandum of Understanding;
  3. dogs who are with families, but for valid reasons, the family cannot provide the required help for the dog's condition
    http://www.labradorlifeline.org

Goldstock Fund
The Fund's mission is to provide funds to rescue organizations or individuals to pay for transportation, boarding, evaluations and medical costs of golden retrievers and golden hearted dogs taken into rescue. The Goldstock General Fund also supports other breeds of dogs in rescue situations, and also provides educational information and materials to rescues and the public.
http://www.goldstockfund.org

National Council for Aging Care's guide on Pets for Seniors    Getting a pet can improve aging in place. Seniors should adopt a pet for the following reasons: (1) Calmness - a pet may relieve stress and anxiety (2) Companionship (3) Daily Exercise (4) Purpose (5) Security (6) Staying Social
http://www.aginginplace.org/seniors-and-pets 

Orthodogs' Silver Lining
OSL was created to help orthopedic cases including owned companion dogs, service dogs, and animals in the care of “no kill” shelter/rescue groups.
http://www.oslf.org

Starfleet Canine Aid Foundation
SCAF was created to provide financial aid to owners or rescue organizations that could not otherwise afford medical treatment for the curable disease or recoverable accident of a canine companion.
http://www.canineaid.org

Additional Resources:


Veterinary Financial Aid & Resources for Cats