Mayo Test Catalog, (Sorted By Test Name) - Mayo Medical ...

psittacosis, a disease characterized by pneumonia, headache, altered mentation, and
hepatosplenomegaly. Psittacosis is acquired by airborne transmission from infected birds.
Chlamydophila pneumoniae (formerly known as TWAR and, more recently, as Chlamydia pneumoniae)
causes pneumonia in humans. It is unique because it is a primary pathogen of humans, is spread from
human to human, and apparently has no animal or bird host. Chlamydophila pneumoniae is responsible
for approximately 10% of pneumonia cases. Chlamydia trachomatis has been implicated in a wide
variety of infections in humans. It is a common cause of nongonococcal urethritis and cervicitis, and
many systemic complications of chlamydial infections have been described. In females, this organism is
a cause of pelvic inflammatory disease, salpingitis, and endometritis. In males, epididymitis and Reiter's
syndrome occur. Lymphogranuloma venereum is a sexually transmitted infection caused by Chlamydia
trachomatis. It presents with a transient primary genital lesion followed by suppurative regional
lymphadenopathy. Occasionally, severe proctitis or proctocolitis may develop. Chlamydia trachomatis
also causes ophthalmologic infections, such as trachoma (rare in the United States), adult inclusion
conjunctivitis and inclusion conjunctivitis in neonates. These disorders have traditionally been
diagnosed by cytologic detection or culture. However, molecular detection methods (#81096
"Chlamydia trachomatis by Nucleic Acid Amplification") may now represent a more sensitive
diagnostic approach. Fitz-Hugh and Curtis syndrome (perihepatitis) has been associated with
chlamydiae.
Useful For: As an aid in the clinical diagnosis of chlamydial infections
Interpretation: IgG Chlamydophila pneumoniae > or =1:512 IgG endpoint titers of > or =1:512 are
considered presumptive evidence of current infection. or =1:64 A single specimen endpoint
titer of > or =1:64 and or =1:512 or a 4-fold increase over that of the initial specimen,
current (acute) infection is indicated. Unchanging titers >1:64 and