TL;DR: A "terminal retch" is a gagging sound after a cough, typically caused by respiratory issues like Kennel Cough, and usually requires a vet visit within 24-48 hours. Seek emergency care immediately if your dog has blue gums or extreme difficulty breathing.
What is a terminal retch and what causes my dog to gag after coughing?
- A terminal retch is a violent cough ending in a gag sound, often mistaken for an attempt to vomit.
- It is actually a mechanism to clear mucus or irritation from the upper respiratory tract.
- Common causes include Kennel Cough (Infectious Tracheobronchitis), tracheal collapse, or environmental irritants.
When is a dog's coughing and gagging considered an emergency?
- Urgency Level: Medium (Most cases require a veterinary exam within 24 to 48 hours).
- Emergency Signs: Seek immediate care if your dog's gums appear blue or purple.
- Emergency Signs: Seek immediate care if your dog is struggling to breathe or is unable to settle.
How does a video of my dog coughing help the veterinarian with triage?
- A video captures the cough's specific sound and the dog's posture, which may not occur at the clinic due to stress or excitement.
- It helps the veterinarian differentiate between cardiac-related coughs and respiratory infections.
- Visual evidence ensures your dog receives the correct diagnostic tests and treatment plan more efficiently.
Clinical Context (Merck Veterinary Manual)
Paroxysms of harsh, dry coughing, which may be followed by retching and gagging, are prominent clinical signs. The cough is easily induced by gentle palpation of the larynx or trachea. Tracheobronchitis should be suspected when the characteristic cough develops after exposure to other susceptible dogs. Severity usually diminishes during the first 5 days, but the disease persists for 10-20 days. Thoracic radiographs are essential to determine the severity of disease and to exclude other causes of cough. Cough suppressants containing codeine derivatives, such as hydrocodone (0.25 mg/kg, PO, bid-qid) or butorphanol (0.05-0.1 mg/kg, PO or SC, bid-qid), should be used only as needed to control persistent nonproductive coughing. Antibiotics are usually not needed except in severe chronic cases; cephalosporins, quinolones, chloramphenicol, and tetracycline are preferred.
Chapter: Infectious Disease, Respiratory
Source: The Merck Veterinary Manual, 11th Edition (Page 1492)