What's Ailing the Bird Enthusiast? A 72-year-old man arives at a hospital emergency room with signs and symptoms of serious puimonary infection. He com- plains of a deep cough, blood- tinged sputum, night sweats. and weight loss. His Ilver and spleen feel enlarged upon phys ical examination. A chest X ray suggests tuberculosis, but there are no acid-fast bacili (AFBS) in his sputum, which would be present with TB. The doctor suspects commurity-acquired pneumonia and prescribes seven days of intravenous antibiotics. After a week, the patient's many bird feeders on his balcony, which overlooks the Ohio River and attracts numerous birds. He spends an hour a day cleaning up bird droppings. The ICU doctors decide to test for other possible diseases. Skin tests for coccidioidomycosis and blastomycosis are incondusive. They do a bronchoalveolar lavage in which fluid is washed through part of the patient's lung via a flexible tube inserted through the mouth, The fluid is collected and analyzed with an enzyme immu- noassay. It detects fungal antigens, and his physicians diagnose pumonary histoplasmosis. 1. What is the most likely infecting agent? How do you sup- pose this individual acquired the disease? 2. In people who work with birds, is this disease unusual, and are those who do have it normally symptomatic? 3. Given that some tests were inconclusive, what other tests or lab work would aid in amiving at a specific diagnosis? 4. What treatment would most likely be prescribed? symptoms are only getting worse. The man has recently traveled to Africa and Asia. in addition, he is an avid bird entnusiast who likes to feed pigeons. He also keeps

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CLINICAL CASE STUDY
What's Ailing the Bird Enthusiast?
A 72-year-old man arrives at a
hospital emergency room with
signs and symptoms of seriqus
pulmonary infection, He com-
plains of a deep cough, blood-
tinged sputum, night sweats,
and weight loss. His Ilver and
spleen feel enlarged upon phys-
ical examination. A chest X ray
suggests tuberculosis, but there
are no acid-fast bacili (AFBS)
in his sputum, which would be
present with TB. The doctor
suspects community-acquired
many bird feeders on his balcony, which overlooks the Ohio River
and attracts numerous birds. He spends an hour a day cleaning up
bird droppings.
The ICU doctors decide to test for other possible diseases. Skin
tests for coccidioidomycosis and blastomycosis are incondlusive.
They do a bronchoalveolar lavage in which fluid is washed through
part of the patient's lung via a flexible tube inserted through the
mouth, The fluld is collected and analyzed with an enzyme immu-
noassay. It detects fungal antigens, and his physicians diagnose
pulmonary histoplasmosis.
1. What is the most likely infecting agent? How do you sup-
pose this individual acquired the disease?
2. In people who work with birds, is this disease unusual, and
are those who do have it normally symptomatic?
3. Given that some tests were inconclusive, what other tests
pneumonia and prescribes
seven days of intravenous antibiotics. After a week, the patiert's
symptoms are only getting worse.
The man has recentiy traveled to Africa and Asia, In addition, he
is an avid bird enthusiast who likes to feed pigeons. He also keeps
or lab work would aid in ariving at a specific diagnosis?
4. What treatment would most likely be prescribed?
Transcribed Image Text:CLINICAL CASE STUDY What's Ailing the Bird Enthusiast? A 72-year-old man arrives at a hospital emergency room with signs and symptoms of seriqus pulmonary infection, He com- plains of a deep cough, blood- tinged sputum, night sweats, and weight loss. His Ilver and spleen feel enlarged upon phys- ical examination. A chest X ray suggests tuberculosis, but there are no acid-fast bacili (AFBS) in his sputum, which would be present with TB. The doctor suspects community-acquired many bird feeders on his balcony, which overlooks the Ohio River and attracts numerous birds. He spends an hour a day cleaning up bird droppings. The ICU doctors decide to test for other possible diseases. Skin tests for coccidioidomycosis and blastomycosis are incondlusive. They do a bronchoalveolar lavage in which fluid is washed through part of the patient's lung via a flexible tube inserted through the mouth, The fluld is collected and analyzed with an enzyme immu- noassay. It detects fungal antigens, and his physicians diagnose pulmonary histoplasmosis. 1. What is the most likely infecting agent? How do you sup- pose this individual acquired the disease? 2. In people who work with birds, is this disease unusual, and are those who do have it normally symptomatic? 3. Given that some tests were inconclusive, what other tests pneumonia and prescribes seven days of intravenous antibiotics. After a week, the patiert's symptoms are only getting worse. The man has recentiy traveled to Africa and Asia, In addition, he is an avid bird enthusiast who likes to feed pigeons. He also keeps or lab work would aid in ariving at a specific diagnosis? 4. What treatment would most likely be prescribed?
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