Croup & Laryngeal Stridor MCQ Quiz | OPD Case Management

Welcome to this focused quiz on Croup and Laryngeal Stridor, designed for MBBS students navigating OPD Case Management. This assessment will test your understanding of the etiology, clinical presentation, differential diagnosis, and management principles for these common pediatric airway conditions. You’ll encounter scenarios covering everything from the classic ‘barking cough’ of viral croup to distinguishing it from critical emergencies like epiglottitis. The quiz includes 25 multiple-choice questions to sharpen your diagnostic and therapeutic skills. After submitting your answers, you’ll receive your score and a detailed review of the correct responses. For your future reference and study, you can also download a PDF version of all questions and their correct answers. Good luck!

1. What is the most common viral pathogen responsible for causing croup (laryngotracheobronchitis)?

2. The classic clinical triad for croup consists of:

3. The primary site of inflammation and narrowing in viral croup is the:

4. A “steeple sign” on an anteroposterior (AP) soft tissue neck X-ray is a characteristic finding in:

5. What is the first-line pharmacotherapy for a child presenting to the OPD with mild to moderate croup?

6. Nebulized epinephrine is indicated in the management of croup when the child presents with:

7. A 2-year-old presents with a high fever, drooling, dysphagia, and is sitting in a “tripod” position. This clinical picture is highly suggestive of:

8. The pathognomonic radiological sign for acute epiglottitis on a lateral neck X-ray is the:

9. Laryngomalacia, the most common cause of congenital stridor, is characterized by stridor that:

10. A biphasic stridor (present during both inspiration and expiration) suggests an obstruction at which level of the airway?

11. A sudden onset of choking, coughing, and stridor in a previously well 18-month-old toddler is most concerning for:

12. Which of the following is NOT a component of the Westley Croup Score used for assessing severity?

13. The mechanism of action of nebulized epinephrine in severe croup is primarily:

14. Spasmodic croup is distinguished from viral croup by its:

15. What is the standard management for a thriving infant with typical, mild laryngomalacia?

16. A purely expiratory stridor (wheeze) is most indicative of an obstruction in the:

17. Which of the following clinical signs in a child with stridor warrants immediate referral to a hospital emergency department?

18. The organism most commonly implicated in acute epiglottitis, especially in unimmunized children, is:

19. A 3-year-old child is given oral dexamethasone for croup in the OPD. The parents should be advised that the medication’s peak effect will be seen in approximately:

20. Bilateral vocal cord paralysis in a neonate typically presents with a weak cry and:

21. A child with a “muffled” or “hot potato” voice, sore throat, and unilateral neck swelling is more likely to have:

22. What is the recommended single dose of oral dexamethasone for a child with mild-to-moderate croup?

23. Bacterial tracheitis should be suspected in a child with croup-like symptoms who:

24. In contrast to croup, the age group most commonly affected by acute epiglottitis is:

25. A key piece of advice for parents of a child discharged from the OPD after treatment for mild croup is: