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Block 11 - Week 12 -bacterial Upper Respiratory Tract Infection

This quiz focuses on bacterial upper respiratory tract infections, assessing knowledge on pathogenesis, clinical presentation, and management strategies. It covers conditions like otitis media, rheumatic fever, and diphtheria,...

Questions: 7 | Attempts: 548 | Last updated: Feb 20, 2023

Sample Question 1
A 2-year-old boy with fever and earache has a red bulging tympanic membrane on the left. Audiometry shows partial hearing loss on the left. What is the cause of hearing loss in this patient?

Pressure on the tympanic membrane due to fluid in the middle ear

Perforation of the tympanic membrane due to fluid in the middle ear

Bacterial inflammatory damage to auditory ossicles

Obstruction of the left Eustachian tube due to a viral upper respiratory infection

Viral inflammation of the 8th nerve

Sample Question 2
A 16-year-old boy was seen in the clinic for fever and painful swelling of his finger joints, wrists, and knees during the past week. He had a sore throat 3 weeks earlier that wasn’t treated. His doctor heard a heart murmur and ordered an anti-streptolysin O (ASO) antibody titer, which was elevated. What caused this illness?

ASO antibodies cross-reacted with his joints and heart valve

Group A streptococci disseminated from his throat to his joints and heart valve

M protein disseminated from his throat to his joints and heart valve

Anti-M protein antibodies cross- reacted with his joints and heart valve

M protein bound to complement factor H to inhibit phagocytosis

Sample Question 3
What do otitis media and acute sinusitis have in common in respect to pathogenesis and therapy?

Both result from obstruction of air passageways leading to fluid collections in air spaces

Both are mostly caused by bacteria including genera of Streptococcus, Haemophilus, and Moraxella.

Both are mostly caused by viruses including rhinoviruses, influenza viruses, and coronaviruses.

Both are effectively treated with antibiotics like amoxicillin

Both are effectively treated with decongestants like ephedrine and antihistamines like benedryl.

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