Internal-Medicine

Questions: 6–14 231
(A) it usually requires corticosteroids
(B) symptoms last several months
(C) it may recur after apparent recovery
(D) it may be transferred by leukocyte
infusions
(E) most patients are children
12. A 22-year-old woman has recurrent fungal infections
and is suspected of having immunodeficiency
secondary to impaired T-cell function.
Which of the following is the most cost-effective
screening test of cellular immunity?
(A)
(B)
(C)
(D)
(E)
quantification of serum immunoglobulin
A (IgA)
lymphocyte enumeration on a cell sorter
lymphocyte responses to mitogens
nitroblue tetrazolium assay
intradermal skin test with Candida albicans
13. A 19-year-old female university student unwittingly
eats shrimp in the dormitory dining
room. Over the next 20 minutes, acute skin
lesions consisting of erythematous, elevated
wheals appear. Which of the following is most
characteristic of these lesions? (See Fig. 11–2.)
(A)
(B)
(C)
(D)
(E)
are most common on the palms and soles
are rarely itchy
do not blanch on pressure
are caused by a localized vasculitis
are caused by an ongoing, immediate,
hypersensitivity reaction
14. A 27-year-old man develops small (several millimeters)
pruritic wheals when he goes jogging
and when he takes very hot showers. Which of
the following is most appropriate in the management
of this condition?
(A) discontinuation of all vigorous exercises
(B) counseling regarding recognition and
treatment of anaphylactic reactions
(C) treatment with anticholinergic medications
(D) treatment with hydroxyzine
(E) cool baths rather than hot showers
Figure 11–2.