Immunology Quiz | Immunology Objective Type Questions and Answers
Questions
21
An 8-year-old male has asthma symptoms about three times per month requiring the use of an albuterol inhaler, despite adequate inhaled steroid treatment. These episodes typically occur at night. The child is not allergic to his guinea pig or dust mites, and there is no smoking in the home. He has no problems with exercise and rarely needs albuterol during the day except when he has an upper respiratory tract viral infection. His FEV1 and PEFR are both >80% predicted. Based on this history, the most likely trigger for his nighttime asthma is:
Answer: Gastro-esophageal reflux disease (GERD)
22
A 45-year-old woman with a strong family history of both allergies and glaucoma presents with frequent red eyes that sometimes itch, sometimes feel dry and sometimes water. On exam, bulbar conjunctivae are injected, palpebral conjunctiva are normal in color. Nasal mucosa is moderately swollen and pale.
Which of the following is the most likely diagnosis?
Answer: Allergic conjunctivitis
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23
A 5-year-old boy lives in a smoking household and has a history of RSV bronchiolitis in infancy. He has been diagnosed with bronchitis at least once, and sometimes twice, every winter. He has sneezing and allergic salute in spring and fall. When he runs in kindergarten he often coughs but has no obvious shortness of breath. He wakes at night coughing only when he has bronchitis. He is unable to do full pulmonary functions. The historical information most suggestive of asthma in this child is:
Answer: Cough with exercise
24
The one true statement about anaphylaxis is
Answer: After adrenalin, the most important medication to administer immediately is steroids
25
A 2-year-old with wheezing, persistent cough, a history of vomiting with cough, as well as hives and angioedema and increased cough after milk products comes to your office for evaluation. He drinks soy and grandma is not feeding him any milk products. He has been treated with prn albuterol nebulizer treatments with benefit in the past. On exam he has frequent congested cough, p = 112, r =26, shiners and Dennies lines. On chest exam he has transmitted upper airway rhonchi and coarse breath sounds but no wheezes or rales. Nasal exam reveals swollen pale nasal mucosa without any visible discharge. CXR shows increased bronchovascular markings without infiltrate but with hyperexpansion. What diagnostic lab information do you want to obtain?
Answer: CBC and diff, total IgE, and skin or RAST testing to milk, casein and soy
26
The most common cause of contact dermatitis in general is:
Answer: Poison ivy, poison oak and poison sumac
27
The two most common superinfections in atopic dermatitis are due to:
Answer: Staph aureus and Herpes simplex
28
Common causes of acute urticaria include all of the following except:
Answer: Inhalant allergy
29
Hereditary angioedema (C1 inhibitor deficiency) is characterized by all of the following except:
Answer: Urticaria or hives
30
Which of the following would not suggest a FISH (Fluorescence In Situ Hybridization) test to identify DiGeorge syndrome?
Answer: Pervasive developmental delay in a 6-year-old female
31
Which of the following symptoms is least common in patients with sinusitis?
Answer: Cough
32
A 40-year-old male presents to the Emergency Room complaining of hives, wheezing and difficulty breathing following an insect sting. Pulse is 120 beats/min. BP is 100/56. After Epinephrine is administered and quick assessment of the patient is done, you determine that the patient is moving air adequately and is not in shock. The next medication to give the patient immediately is:
Answer: Methylprednisolone 100 mg IV
33
A 40-year-old male presents to the Emergency Room complaining of hives,wheezing and difficulty breathing following an insect sting. Pulse is 120 beats/min.BP is 100/56. Immediate therapy should include which one of the following:
Answer: Epinephrine 0.3 ml (1:1000 aqueous) sub Q or IM
34
Inhaled corticosteroids (Choose the one incorrect answer):
Answer: Acutely increase peak flow rate, a measure of large airway function
35
Which of the following is the most common underlying cause of asthma?
Answer: Inhalant allergies
36
Conditions which may worsen asthma include (Identify the one incorrect choice):
Answer: Diabetes Mellitus
37
Which of the following tests would be most useful in helping to diagnose asthma:
Answer: B and C
38
All of the following regarding aspirin intolerance are true except:
Answer: Patients with asthma are at no greater risk for aspirin intolerance than the general population
39
All of the following except one can be useful in managing atopic dermatitis:
Answer: Immunotherapy (allergy injections)
40
Congenital complement deficiencies are best screened by which of the following laboratory tests:
Answer: Total CH50
