USMLE EXAMINATION SET 2026 SOLVED
QUESTIONS GRADED A+
● four drug regimen used to treat TB. Answer: isoniazid, ethambutol,
rifampin, pyrazinamide
● used to treat Trichomonas or Gardnerella. Answer: metronidazole
● used to treat Plasmodium vivax or ovale. Answer: chloroquine +
primaquine
● used to treat Pediculosis capitis or pubus. Answer: permethrin,
pyrethrin
● organisms most commonly responsible for otitis media. Answer: Strep
pneumoniae
Haemophilus influenzae
Moraxella catarrhalis
● organism most commonly responsible for otitis externa. Answer:
Pseudomonas aeruginosa
● fungus that causes San Joaquin Valley fever. Answer: Coccidioides
,● fungus found in rural Latin America. Answer: Paracoccidioides
● fungus associated with plant thorns and cutaneous injury. Answer:
Sporothrix
● fungus found in states east of the Mississippi River. Answer:
Blastomycosis
● fungus found in bird and bat droppings. Answer: Histoplasmosis
● mold form contains barrel-shaped arthroconidia. Answer:
Coccidioides
● encapsulated bacteria (8). Answer: E. coli, Strep pneumoniae, N.
meningitidis, Klebsiella pneumoniae, Haemophilus influenae,
Pseudomonas aeruginosa, Salmonella, group B Strep
● steeple sign on X-ray. Answer: croup, parainfluenza virus
● thumb sign on x-ray. Answer: epiglottitis, Haemophilus influenza
● treatment of chronic hepatitis B and C. Answer: IFN-alpha, ribavirin
,● most abundant bacteria in the colon of most individuals. Answer:
Bacteroides fragilis
● likely organisms in a patient with chronic granulomatous disease.
Answer: S. aureus, E. coli, K. pneumoniae, Aspergillus, Candida (all are
catalase +)
● organisms that cause infections in the mouth of AIDS patients.
Answer: HSV, C. albicans, EBV, CMV
● three structural genes that code for HIV proteins. Answer: gag (p24)
pol (reverse transcriptase, integrase)
env (gp120, gp41)
● dark purple nodules on the skin in an HIV patient. Answer: HHV-8,
Kaposi sarcoma
● large cells with owl's eye inclusions. Answer: CMV
● treatment for CMV. Answer: ganciclovir
● most common opportunistic infection in HIV patients. Answer:
Pneumocystis jirovecii
, ● drug used to prevent Pneumocystis pneumonia. Answer: TMP-SMX
● causes hemolytic-uremic syndrome. Answer: EHEC: 0157:H7
● medications used to treat C. diff colitis. Answer: metronidazole and
oral vancomycin
● food poisoning as a result of mayonnaise sitting out too long. Answer:
S. aureus
● diarrhea caused by Gram (-) nonmotile organism that does not ferment
lactose. Answer: Shigella
● Rice-water stools. Answer: Vibrio cholera
● Diarrhea caused by an S-shaped organism. Answer: Campylobacter
jejuni
● Diarrhea transmitted from pet feces. Answer: Yersinia enterocolitica
● Food poisoning resulting from reheated rice. Answer: Bacillus cereus
QUESTIONS GRADED A+
● four drug regimen used to treat TB. Answer: isoniazid, ethambutol,
rifampin, pyrazinamide
● used to treat Trichomonas or Gardnerella. Answer: metronidazole
● used to treat Plasmodium vivax or ovale. Answer: chloroquine +
primaquine
● used to treat Pediculosis capitis or pubus. Answer: permethrin,
pyrethrin
● organisms most commonly responsible for otitis media. Answer: Strep
pneumoniae
Haemophilus influenzae
Moraxella catarrhalis
● organism most commonly responsible for otitis externa. Answer:
Pseudomonas aeruginosa
● fungus that causes San Joaquin Valley fever. Answer: Coccidioides
,● fungus found in rural Latin America. Answer: Paracoccidioides
● fungus associated with plant thorns and cutaneous injury. Answer:
Sporothrix
● fungus found in states east of the Mississippi River. Answer:
Blastomycosis
● fungus found in bird and bat droppings. Answer: Histoplasmosis
● mold form contains barrel-shaped arthroconidia. Answer:
Coccidioides
● encapsulated bacteria (8). Answer: E. coli, Strep pneumoniae, N.
meningitidis, Klebsiella pneumoniae, Haemophilus influenae,
Pseudomonas aeruginosa, Salmonella, group B Strep
● steeple sign on X-ray. Answer: croup, parainfluenza virus
● thumb sign on x-ray. Answer: epiglottitis, Haemophilus influenza
● treatment of chronic hepatitis B and C. Answer: IFN-alpha, ribavirin
,● most abundant bacteria in the colon of most individuals. Answer:
Bacteroides fragilis
● likely organisms in a patient with chronic granulomatous disease.
Answer: S. aureus, E. coli, K. pneumoniae, Aspergillus, Candida (all are
catalase +)
● organisms that cause infections in the mouth of AIDS patients.
Answer: HSV, C. albicans, EBV, CMV
● three structural genes that code for HIV proteins. Answer: gag (p24)
pol (reverse transcriptase, integrase)
env (gp120, gp41)
● dark purple nodules on the skin in an HIV patient. Answer: HHV-8,
Kaposi sarcoma
● large cells with owl's eye inclusions. Answer: CMV
● treatment for CMV. Answer: ganciclovir
● most common opportunistic infection in HIV patients. Answer:
Pneumocystis jirovecii
, ● drug used to prevent Pneumocystis pneumonia. Answer: TMP-SMX
● causes hemolytic-uremic syndrome. Answer: EHEC: 0157:H7
● medications used to treat C. diff colitis. Answer: metronidazole and
oral vancomycin
● food poisoning as a result of mayonnaise sitting out too long. Answer:
S. aureus
● diarrhea caused by Gram (-) nonmotile organism that does not ferment
lactose. Answer: Shigella
● Rice-water stools. Answer: Vibrio cholera
● Diarrhea caused by an S-shaped organism. Answer: Campylobacter
jejuni
● Diarrhea transmitted from pet feces. Answer: Yersinia enterocolitica
● Food poisoning resulting from reheated rice. Answer: Bacillus cereus
