Members' NAVLE study guide

Feline Asthma: Diagnosis and Treatment

1,680 words 8 min read Reviewed November 13, 2026

Feline asthma (allergic bronchitis) is a chronic, eosinophilic lower airway disease with reversible airflow obstruction. It resembles human asthma, and the cough is often mistaken by owners for a hairball. The practical NAVLE questions are how to confirm it, which mimics to exclude, and how to treat a crisis and the chronic disease.

Key facts

Asthma at a glance
  • Species and system: cat, lower respiratory tract.
  • Cause: IgE-linked immune response to inhaled allergens or irritants with eosinophilic inflammation, airway hyperresponsiveness and remodeling.
  • Signalment: young cats, Siamese and Himalayan breeds most affected (MSD); sudden asthma in older cats is uncommon.
  • Classic presentation: episodic cough or wheeze, expiratory effort with an abdominal push; acute respiratory crisis in severe cases.
  • Treatment: corticosteroids (oral or inhaled) for the disease, bronchodilators only as adjunct or rescue, plus allergen and irritant control.

What's inside

14 sections in the full guide
  1. Key facts
  2. How the NAVLE tests this
  3. Cause and pathophysiology
  4. Clinical signs
  5. Diagnosis
  6. Don't confuse these
  7. Treatment and management
  8. Prognosis
  9. Inhaled therapy in practice
  10. Monitoring and re-evaluation
  11. Why cough points away from the heart
  12. Quick review
  13. Test yourself
  14. References
The full guide also has 4 tables, 3 self-test questions and 9 references, available to NAVLE members.

Read the full study guide

The full guide is part of every NAVLE plan, with diagnosis and treatment tables, figures, a quick review and self-test questions. Start a free trial to try the question bank, or log in if you are already a member.

Read the free overview article A shorter, free article on Asthma on the NavleExam blog.