Contact Information

Angel of Mercy Animal Critical Care
8734 Grissom Road
San Antonio, TX 78251
Phone: 210-684-2105
Fax: 210-256-0088

Business Hours:
All Night, Seven Days
Open Monday–Thursday, 6 p.m.–8 a.m.
Open 24 Hours on the Weekends
Friday 6 p.m.–Monday 8 a.m.
Open 24 Hours on Holidays

First Aid

What type of emergency are you dealing with?

Is pet having difficulty breathing? Pale gums? Or bluish tinge to gums or tongue?
Keep animal as calm and comfortable as possible.  Place small pet in a carrier or hold gently with minimal restraint.  Avoid neck leads (place leash around shoulders and over one front leg). Avoid pet walking, carry if possible or have emergency staff assist with a gurney; Keep the environment cool (A/C on high in car).  Transport to the nearest emergency clinic.

difficulty breathing, bleeding, seizing

Is pet bleeding? 
Use a clean cloth or towel to apply direct pressure; if bleeding from a leg, try to keep the leg elevated during transport.  If pet is bleeding from a recent spay incision, wrap a towel or ACE bandage around the abdomen before transporting pet.  Transport to the nearest emergency clinic.

Is pet seizing?
Most seizures will stop in 2-5 minutes and are usually not life threatening.  Owners should remain calm and speak quietly and reassuringly to the pet during the seizure.  Never try to hold a pet while it is seizing, for it may snap or bite.  Do not put your hand in the pet’s mouth during a seizure.  Animals can be disoriented and even aggressive after a seizure and should be handled carefully and minimally.  Small puppies and kittens may seizure due to hypoglycemia; try placing a small amount of Karo Syrup or sugar water on the gums.  Prolonged seizures (greater than 5 minutes) are more serious and require emergency treatment.  The body temperature may rise during prolonged seizures, apply cool wet towels then transport to the nearest emergency clinic.

Pet has been hit by a car 
Pet may be in shock, cover with a blanket and carefully place in a box or carrier if pet is small, large dogs may be placed on a board or use a blanket as a hammock for transport to the nearest emergency clinic.

Pet has a burn
Rinse with cool water or apply a cool water compress.  Transport to the nearest emergency clinic.

Pet has a leg injury or a possible fracture
Handle the injured leg as little as possible and carry the pet or transport pet in a box or carrier.  If the pet is carried, hold the pet so the injured leg is away from your body. Do not allow large dogs to jump in or out of the car without assistance, have the emergency staff assist with a gurney.

Pet has heatstroke 
Cool pet briefly by wetting the hair thoroughly, then immediately transport to the nearest emergency clinic.  Maintain a cool environment (A/C on high in car).

Pet has an eye injury
If caused by an irritant (soap from a bath) flush eye with cool water or a saline eye wash.  Cover the eye with a moist cloth if possible.  Do not apply any topical medication until a complete exam has been completed.  Transport to the nearest emergency clinic.

Pet has external wounds
Most wounds are inflicted by other animals, but may also be caused by various sharp objects.  The wounds will need to be clipped of hair and cleaned of any foreign debris that may have entered the wound.  Treatment may require sedation or surgical anesthesia, depending on the severity and extent of the injuries.  The sooner the wounds are cleaned and flushed, the less likely the chance of infection or abscess.  Transport to the nearest emergency clinic.

Allergic reactions 
Most are commonly caused by insect stings or bites, but can also be caused by vaccinations or even certain foods or medications.  Dogs are more commonly affected than cats.  The most common reactions are facial swelling and hives, with severe itching and redness of the skin.  More severe, anaphylactic reactions may also include vomiting, collapse, pale gums and labored breathing.  The pet may also defecate and urinate. These should be treated immediately at an emergency clinic.  Transport to the nearest emergency clinic.

Straining to urinate
Most commonly noted in cats, especially male cats and is a life threatening condition that requires immediate treatment.  Urinary obstruction in dogs is commonly caused by bladder stones.  Cats often have urinary tract infections and mucous-crystalline plugs of sediment that block the urethra.  These problems require emergency treatment and can lead to kidney failure and death.  Transport to the nearest emergency clinic.

Poison or toxin 
Many items around the house are toxic to pets, including cleaning products, prescribed medications, garbage, plants and household insecticides.  If the toxin is known, bring the package to the clinic.  Call the clinic prior to the visit and have the active ingredient, time of exposure, weight of the animal and whether the pet has already vomited type of information available on request.  It may be necessary to induce vomiting prior to transporting to the nearest emergency clinic.

Print Version Print Version       Send to a friend Send to a friend       Send to Phone

Send to Phone

Your text message was sent.

To opt out at anytime, send the word STOP to YP411 from your mobile phone.

To get a help message, send the word HELP to YP411 from your mobile phone.

Please try again
You must enter a vaild 10 digit U.S. phone number.

Send this business listing as a text message to a mobile phone.

Angel of Mercy Animal Critical Care
8734 Grissom Road, San Antonio, TX 78251

- -

Terms: The recipient of this text message may incur charges depending on their wireless carrier. Not all carriers are currently supported



1) Do you offer any discounts?
Yes, we offer Military Discounts with an ID.

2) How much are exams for my animal?
Our basic exam fee is $60.

3) Do you offer payment plans / options?
We accept all major credit cards, cash, checks and CareCredit. Payment is due at time of services, with proper ID. 

4) What is CareCredit?
CareCredit is a specialized credit card that may be used for medical services – included are veterinary services, and medical and dental services. You can apply by phone at 800-365-8295 or online at
5) What types of pets are treated at Angel of Mercy Animal Critical Care?
We primarily treat dogs and cats. However, we do have relief veterinarians who may treat exotic pets (example: rodents, ferrets, birds, reptiles, etc.). Please call before bringing in your exotic pet to ensure that the veterinarian on staff will see him / her.
6) What should do if you pick up a stray animal?
You may call Animal Care Services at 311 or 210-737-1442. Picking up a stray animal entails accepting financial responsibility, as well as ownership of the animal. Unfortunately, our facility limitations do not allow us to accept stray animals.
7) Does Angel of Mercy Animal Critical Care offer vaccines and other routine veterinary care?
Being an emergency veterinary hospital, we do not offer vaccines and routine veterinary care. Please contact a regular daytime veterinary hospital for these types of services.

Helpful Links

National Animal Poison Control

Pet Poison Helpline

San Antonio Humane Society

Spay-Neuter Assistance Program, Inc.

Animal Care Services
210-207-4738  or 311

Spay Sa

Animal Defense League

Wildlife Rescue