Diagnosis of Parainfluenza virus type 4
Parainfluenza virus type 4 Diagnosis: Book Excerpts
Diagnostic Tests for Parainfluenza virus type 4: Online Medical Books
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Influenza:
Diagnosis
(Professional Guide to Diseases (Eighth Edition))
At the beginning of an influenza epidemic, early cases are usually mistaken for other respiratory disorders.
CONFIRMING DIAGNOSIS Because signs and symptoms of influenza aren’t pathognomonic, isolation of M. influenzae through nose and throat cultures and increased serum antibody titers help confirm this diagnosis. Also, rapid diagnostic methods for detecting influenza are now available and help confirm this diagnosis.
After these measures confirm an influenza epidemic, diagnosis requires only observation of clinical signs and symptoms. Uncomplicated cases show a decreased white blood cell count with an increase in lymphocytes.
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Source: Professional Guide to Diseases (Eighth Edition), 2005
Parainfluenza:
Diagnosis
(Professional Guide to Diseases (Eighth Edition))
Parainfluenza infections are usually clinically indistinguishable from similar viral infections. A swab of nasal secretions is useful for rapid viral testing. Isolation of the virus and serum antibody titers differentiate parainfluenza from other respiratory illness but is rarely done.
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Source: Professional Guide to Diseases (Eighth Edition), 2005
Haemophilus influenzae infection:
Diagnosis
(Professional Guide to Diseases (Eighth Edition))
CONFIRMING DIAGNOSIS Isolation of the organism, usually with a blood culture, confirms the diagnosis of H. influenzae infection.
Other laboratory findings include:
❑polymorphonuclear leukocytosis (15,000 to 30,000/µl)
❑leukopenia (2,000 to 3,000/µl) in young children with severe infection
❑H. influenzae bacteremia, found in many patients with meningitis.
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Source: Professional Guide to Diseases (Eighth Edition), 2005
Influenza:
Diagnosis
(Handbook of Diseases)
At the beginning of an influenza epidemic, early cases are usually mistaken for other respiratory disorders. Because signs and symptoms aren’t pathognomonic, isolation of M. influenzae through the inoculation of chicken embryos (with nasal secretions from infected patients) is essential at the first sign of an epidemic. Nose and throat cultures and increased serum antibody titers help confirm this diagnosis.
After these measures confirm an influenza epidemic, diagnosis requires only observation of clinical signs and symptoms. Uncomplicated cases show a decreased white blood cell count with an increased lymphocyte count.
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Source: Handbook of Diseases, 2003
Haemophilus influenzae infection:
Diagnosis
(Handbook of Diseases)
Isolation of the organism, usually with a culture, confirms H. influenzae infection. Other laboratory findings include:
❑ polymorphonuclear leukocytosis (15,000 to 30,000/µl)
❑ leukopenia (2,000 to 3,000/µl) in young children with severe infection
❑ H. influenzae bacteremia, found frequently in patients with meningitis.
» READ BOOK EXCERPT ONLINE »
Source: Handbook of Diseases, 2003
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