NBME 13 2024 UPDATED QUESTIONS AND VERIFIED ANSWERS
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Course
NBME 13
Institution
NBME 13
NBME 13 2024 UPDATED QUESTIONS AND VERIFIED ANSWERS
Previously healthy 6 y/o girl presents with abdominal pain + nausea + vomiting 4 hours after attending a friends birthday party; What is the cause of these findings? - ANSWER Enterotoxin ingestion
A 39-year-old woman with end-stage renal ...
NBME 13 2024 UPDATED
QUESTIONS AND VERIFIED
ANSWERS
Previously healthy 6 y/o girl presents with abdominal pain +
nausea + vomiting 4 hours after attending a friends birthday party;
What is the cause of these findings? - ANSWER ✔ Enterotoxin
ingestion
A 39-year-old woman with end-stage renal disease caused by
systemic lupus erythernatosus undergoes kidney transplantation
from a living, unrelated donor. Despite aggressive
immunosuppressive therapy, the transplant is rejected after 6
months. Analysis of a biopsy specimen of the transplant shows
numerous infiltrating CD8+ T lymphocytes. Which of the following
is the most likely cause of rejection of the transplant in this
patient? - ANSWER ✔ Direct cytotoxicity
A male newborn is delivered at 38 weeks' gestation following an
uncomplicated pregnancy. Twelve-hours later, he begins sucking
frantically and crying inconsolably. He overreacts to stimuli
around him and has a marked startle response. The symptoms
slowly resolve over the next 2 to 3 weeks. The most likely
explanation for these symptoms is maternal use of which of the
following substances during pregnancy? - ANSWER ✔ Herion
A 22-year-old woman comes to the physician for a follow-up
examination. One year ago, she was diagnosed with a pulmonary
embolism. Two years ago, she delivered a female stillborn at 23
,weeks' gestation. Physical examination today shows no
abnormalities. Laboratory studies show a platelet count of
250,000/mm3, a prothrombin time within the reference range, and
an increased partial thromboplastin time. The findings in this
patient are most consistent with which of the following conditions?
- ANSWER ✔ Antiphospholipid syndrome
A 36-year-old man comes to the physician for a routine
examination. He has a 5-year history of recurrent episodes of
genital herpes treated with acyclovir. He says, "I`ve been taking
the medication, but I still occasionally get lesions. When will I be
cured?" The physician informs him that herpes simplex is a
lifelong infection, with no cure at the present time. Which of the
following best explains the longevity of the herpes simplex virus? -
ANSWER ✔ Establishment of a latent infection in sensory nerve
cells
What strucuture attaches to the cervical region and extends
posteriorly - ANSWER ✔ Uterosacral ligament
A 54 y/o woman comes to the physician because of a 5-day
history of severe mid-back pain Physical examination shows point
tenderness over the T6 vertebra. Serum studies show a calcium
concentration of 13.4 mg/dl; urinalysis shows Bence Jones
proteins. Which of the following is the most likely cause of this
patient's hyper-calcemia? - ANSWER ✔ Local interleukin-1 and
tumor necrosis factor
Chronic mal-absoprtion + retinal degeneration + ataxia + motor
dysfunction + low cholesterol - ANSWER ✔ Abetalipoproteinemia;
Apo B-100 def
, Which of the following structures can be cut to decrease stomach
acid output and decrease likelihood of ulcers forming in jejunum -
ANSWER ✔ Vagal trunks
Sequence analysis of mitochondrial DNA shows a mutation in
50% of the mothers mitochondria DNA and in 100% of each other
children's mitochondrial DNA. A pedigree is shown. Which of the
following genetic principles best explains the findings in this
family? - ANSWER ✔ Heteroplasmy
A 52 year old man with a family history of renal failure comest to
the physician because of abdominal pain over the last 6 months.
He has been treated in the past for renal calculi and hypertension.
Physical examination shows bilateral palpable masses in the
upper abdomen. Urinalysis shows crenated erythrocytes and mild
proteinuria. A CT scan of the abdomen identifies the cause of the
patient's problem. Which of the following is the most likely
diagnosis? - ANSWER ✔ Polycystic Kidney Disease
A mouse melanoma, B-16. is highly metastatic. A clone of the B-
16 melanoma cells is injected intravenously into the tail vein of
mice, and 3 weeks later tumor nodules are found in the lungs,
liver, and ovaries. When an antibody to a liver cell surface antigen
is injected 1 hour prior to injection of the B-16 melanoma cells,
formation of tumor nodules in the liver is prevented, but tumor
nodules develop in the ovaries and lungs. In vitro studies do not
show any cytotoxic effect of the antibody on B-16 or hepatic cells.
Which of the following processes is most likely to be affected by
the antibody? - ANSWER ✔ Homing
A study is conducted to assess the effectiveness of vitamin C in
preventing common colds in children, Patients are randomly
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