Food Allergies and the Upper Aerodigestive Tract — MCQs

Which immunoglobulin is known to be heat-labile?

A cook prepares sandwiches for 10 people going for a picnic. Eight out of them develop severe gastroenteritis within 4-6 hours of consuming the sandwiches. It is likely that on investigation, the cook is found to be the carrier of -

Patient following peanut consumption presented with laryngeal edema, stridor, hoarseness of voice and swelling of tongue. Most likely diagnosis is:

Match the following: A) Glossopharyngeal nerve B) Spinal accessory nerve C) Facial nerve D) Mandibular nerve 1) Shrugging of shoulder 2) Touch sensation from the posterior one-third of the tongue 3) Chewing 4) Taste from the anterior two-thirds of the tongue

Which of the following is false regarding transfusion-associated anaphylactic reactions?

A 60-year-old man presents with foul breath and regurgitates food eaten 3 days ago. What is the most likely diagnosis?

A 45-year-old patient with a known allergy to penicillin presents with an enterococcal endocarditis. The physician needs to prescribe an antibiotic but wants to ensure it is safe for a penicillin allergy. The patient has had previous allergic reactions to penicillin including rash & swelling. Which of the following drugs can be used safely in a patient allergic to penicillin?

Drug of choice for Enterococcus infection in a patient allergic to penicillin?

Which of the following are early mediators of allergic rhinitis?

A 29-year-old non-smoker man presents with sneezing, post-nasal drip, eye watering, and itching of his posterior pharynx. These symptoms tend to be worse in the spring and summer and have been bothering him for about 1 month. His past medical history is remarkable only for mild asthma induced by being outdoors. He takes no regular medications but does take diphenhydramine on occasion. What is the most appropriate diagnostic test at this time?