76. Which of the following statements best summarizes the passage?

1. Tuberculosis must always be considered as a cause of FUO.
2. FUO will continue to be a challenge to clinical physicians.
3. The categories of causes of FUO remain unchanged.
4. The types of diseases have changed over the last 50 years.

77. Which of the following best describes FUO? ____

1. Documented fever for more than three weeks and no established diagnosis.
2. Familiar disease with uncommon presentation.
3. Systematic lupus erythematosus easily diagnosed by serologic tests.
4. A disease that was not well described several decades ago.

78. It is true according to the passage that ____.

1. standard tests can rarely establish a specific diagnosis of FUO
2. systemic lupus erythematosus remain a common cause of FUO
3. the cause of FUO is a known disease with an uncommon presentation
4. the primary care physicians are often the first to establish the diagnosis of FUO

79. The author mentions all of the following EXCEPT ____.

1. Peterdorf and Beeson established the three major categories of causes of FUO
2. various patient groups may present different causes of FUO
3. tuberculosis is a less common cause of FUO now than it was 50 years ago
4. FUO is more common in patients who have culture-negative endocarditis

80. It can be concluded that with rapid contemporary transportation means, ____.

1. it will be harder for physicians to differentiate a diagnosis for FUO
2. travelers will be kept away from more unusual diseases
3. primary care physicians will be able to establish a diagnosis sooner
4. patients with FUO will be diagnosed sooner than 50 years ago

(Reference keys.)