lq2006
Forum Elite
Topics: 43
Posts: 382
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35>.A traveler to a foreign country develops acute lymphatic filariasis
four months after his return to the United States. His symptoms include
scrotal inflammation, itching, and localized scrotal swelling and
tenderness of the inguinal lymph nodes. Which of the following immune
mechanisms does the body employ against the live filarial worms ?
A. Antibody-dependent cell-mediated cytotoxicity
B. Anti-receptor antibodies
C. Arthus reaction
D. Complement-mediated reactions
E. Deposition of circulating antigen-antibody complexes
46>.A 40-year-old woman with systemic sclerosis presents to her physician
with malaise. Physical examination is remarkable for jaundice, and serum
chemistry studies demonstrate moderately elevated serum alkaline
phosphatase, while aspartate aminotransferase (AST) and alanine
aminotransferase (ALT) are only minimally elevated. Presence of
which of the following autoantibodies would be most helpful in
elucidating the likely etiology of the woman's liver disease?
A. Anti-double-stranded DNA
B. Anti-mitochondrial antibodies
C. Anti-phospholipid antibodies
D. Anti-self IgG
E. Anti-smooth muscle antibodies
33>.Loss of which of the following classes of molecules on the surface
of a tumor cell target would result in loss of susceptibility to killing
by host immune cells?
A. CD3
B. CD4
C. CD8
D. MHC class I
E. MHC class II
25>.A 24-year-old man presents with fever, rash, a mild headache, and
a sore throat. He denies HIV risk factors, although he is sexually active.
On examination, his temperature is 100.8癋 and his pulse is 90/min. There
is a diffuse, erythematous, maculopapular rash over most of his body.
Generalized adenopathy is appreciated, and photophobia is noted when
funduscopic examination is attempted. If this man is not treated, which
of the following changes in his serologic status will most likely occur?
A. The FTA-ABS titer would fall
B. The FTA-ABS titer would rise
C. The VDRL titer would fall
D. The VDRL titer would rise
E. Both FTA-ABS and VDRL would fall
F. Both FTA-ABS and VDRL would rise
12>.A 2-day-old baby girl suddenly develops abdominal distention,
progressive pallid cyanosis, and irregular respirations. The newborn
also has "refused" to breast-feed for the past 18 hours. If the mother
was treated for a serious infection with antibiotics for 14 days up to
and including the day of delivery, which of the following medications
did the mother most likely receive?
A. Aztreonam
B. Chloramphenicol
C. Clindamycin
D. Metronidazole
E. Sulfamethoxazole/trimethoprim
3>Which of the following class II antigens would be most likely to play
a contributing role in hay fever?
A. DR2
B. DR3
C. DR4
D. DR5
E. DR7
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| new_n_lost
Forum Hero
Topics: 724
Posts: 6,388
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R these NBME Qs can u plz these.
___________________
"never argue with a fool, they'll bring you down to their level and beat you with experience" FORUM RULES-- Those who believe in telekinesis, raise my hand. I get enough exercise just by pushing my luck --P4U World.." The pure and simple truth is rarely pure and never simple."
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| new_n_lost
Forum Hero
Topics: 724
Posts: 6,388
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35 A. Antibody-dependent cell-mediated cytotoxicity
46 A. Anti-double-stranded DNA
33 D. MHC class I
25 F. Both FTA-ABS and VDRL would rise
12 D. Metronidazole
3 C. DR4
___________________
"never argue with a fool, they'll bring you down to their level and beat you with experience" FORUM RULES-- Those who believe in telekinesis, raise my hand. I get enough exercise just by pushing my luck --P4U World.." The pure and simple truth is rarely pure and never simple."
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| me007
Forum Guru
Topics: 72
Posts: 799
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46 - b likely
prim biliary cirrhosis associated with variety of autoimmune syndromes (sjogren, scleroderma, raynad's, ets)
12 - ?
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| me007
Forum Guru
Topics: 72
Posts: 799
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12 looks like gray baby syndrome,
metronidasole is not contraindicated in pregnancy,
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| epica
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to nnl'
Pl check hay fever, in kaplan it's DR-2
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| usmle4me
Forum Elite
Topics: 6
Posts: 282
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35. A
46.
33.D
25.F
12.B
3.A
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