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FREE USMLE AND STUDY GAMES ABOUT INFECTIOUS
DISEASES EXAM QUESTIONS
Actual Qs and Ans Expert-Verified Explanation
This Exam contains:
-Guarantee passing score -119 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation
Question 1: What is the role of the bacterial cell wall?
Answer:
Protects the organism from osmotic stress Question 2: Monoclonal antibody against C5 is often used in:
Answer:
Paroxysmal Nocturnal Hemoglobinuria Question 3: Which antiretroviral is associated with HLA-B*57:01 allele?
Answer:
Abacavir
Question 4: What is the MC outcome of untreated Hepatitis C virus infection?
Answer:
Lifelong persistent infections
Question 5: What is a adverse effect of using medications against MAC?
Answer:
Increase risk for encapsulated bacterial infections
Question 6: What are common practices that lead to Toxic Shock syndrome?
Answer:
Prolonged use of tampons or wound packing Question 7: What immune response is elicited with Inactivated (killed or component) vaccines?
Answer:
Humoral response Question 8: What is the most common cause of skin and soft-tissue abscess formation?
Answer:
Staphylococcus aureus infection
Question 9: What is a complication of Paroxysmal Nocturnal Hemoglobinuria?
Answer:
Formation of membrane attack complexes on erythrocytes
Question 10: What is Phthirus pubis?
Answer:
Human pubic louse
Question 11: What does Reassortment (genetic drift) involve?
Answer:
Exchange of entire genomic segments, for more dramatic process that the point mutation in genomic shifts
Question 12: What type of vaccine is used for Hepatitis B virus infection?
Answer:
Recombinant HBsAg to generate anti-HBs antibodies
Question 13: What are some situations that lead to a False-Negative TST?
Answer:
Immunocompromised patient, improper injection technique, and recent infection
Question 14: What is the triad seen with HUS?
Answer:
- Acute renal failure
- Thrombocytopenia
- Microangiopathic Hemolytic anemia
Question 15: What is the pathogenesis of Toxic Shock syndrome?
Answer:
Staphylococcus aureus replicates and releases pyrogenic toxic superantigens into the blood, attach to MHC-II complex of APCs, leading to activation of T cells Question 16: What is the common triad of symptomatic disseminated gonococcal disease?
Answer:
- Polyarthralgia,
- Tenosynovitis,
- Dermatitis or purulent arthritis
Question 17: At what age are newborns receive active immunization against Tetanus?
Answer:
Age of 2 months Question 18: Which antiviral therapy medications do not require intracellular phosphorylation?
Answer:
Nonnucleoside reverse transcriptase inhibitors (NNRTI) Question 19: Histologically how do atypical lymphocytes differ from normal lymphocytes?
Answer:
Reactive lymphocytes are large, scalloped, and have abundant cytoplasm
Question 20: What are the initial manifestations of Chikungunya fever?
Answer:
Self-limited fever, severe polyarthralgia, and a rash.
Question 21: Nevirapine. NRTI or NNTI
Answer:
Nonnucleoside reverse transcriptase inhibitors (NNRTI)
Question 22: What part of the world is HSV-2 endemic from?
Answer:
Western Africa
Question 23: Which Ig is elevated in a mother with a ToRCHES infection?
Answer:
Maternal IgG titers are elevated
Question 24: What is Reactive lymphocytosis?
Answer:
It is when the lymphocyte count is elevated but the elevation is NOT due to a neoplastic process
Question 25: What is the best mode of prevention of gonococcal infection?
Answer:
Consistent use of condoms
Question 26: What is the reason for anergy in Tuberculosis?
Answer:
Impaired cell- mediated immune response
Question 27: What are Acute Phase Reactants?
Answer:
Proteins whose serum concentrations change by > 25% during periods of inflammation
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