CHAPTER 17 FEVER OF UNKNOWN ORIGIN

Question 1

it is the any febrile illness without initially obvious etiology

Answer 1

fever of unknown origin

Question 2

reserve only for prolonged febrile illness without an established etiologies despite the intensive evaluation and diagnostic testing

Answer 2

fever of unknown origin

Question 3

criteria that should be meet to say that it is fever of unknown origin

Answer 3

fever is >38.3 at least two occasions
illness duration of >3 weeks
no known immunocompromised state
diagnosis that remains uncertain

Question 4

what do you call a fever that is repeated episodes of fever intersped with fever free intervals of at least 2 weeks and apparent remission of the underlying disease

Answer 4

recurrent fever

Question 5

possible causes of FUO

Answer 5

infections
noninfectious inflammatory disease
neoplasm
miscellaneous causes

Question 6

most common cause of fever of unknown origin in infectious disease

Answer 6

endocarditis
diverticulitis
vertebral osteomyelitis
extrapulmonary tuberculosis

Question 7

most common cause of fever of unknown origin in neoplasms

Answer 7

malignant lymphomas

Question 8

what is drug induced fever?

Answer 8

when drugs can cause fever with accompanying drug reaction of eosinophilia and systemic symptoms

Question 9

common drugs that can cause drug induced fever

Answer 9

allopurinol
carbamazepine 
lamotrigine
phenytoin
sulfasalazine

Question 10

what is exercise induced hyperthermia

Answer 10

characterized by elevated body temperature that is associated with moderate to strenuous exercise lasting from half an hour without increasing the CRP levels or ESR