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Revista da Associação Médica Brasileira

Print version ISSN 0104-4230On-line version ISSN 1806-9282

Rev. Assoc. Med. Bras. vol.65 no.9 São Paulo Sept. 2019  Epub Oct 10, 2019 


“Sexually transmitted infections – laboratory diagnosis”

Maurício Hachul1

Marcus Vinícius Verardo de Medeiros1 

Ricardo Simões1

Wanderley Marques Bernardo2

1. Sociedade Brasileira de Urologia, São Paulo, SP, Brasil

2. Coordenador do Programa Diretrizes da Associação Médica Brasileira, São Paulo, SP, Brasil

Question: What are the laboratory diagnostic methods for urethritis? (Page 747)

Answer: Infectious urethritis is caused by sexually transmissible pathogens. There should be clinical suspicion in cases of sexually active individuals with complaints of dysuria, urethral pruritus and/or urethral discharge. The diagnosis can be confirmed by the presence of one of the following findings: urethral secretions; bacterioscopy by Gram staining of purulent secretions obtained through urethral smear showing ≥two polymorphonuclear leukocytes on an immersion slide; testing for leukocyte esterase and/or presence of ≥10 leukocytes per field in the urinary sediment of the first urine (Page 750).


1. Hachul M, Medeiros MVV, Simões R, Bernardo WM.Sexually transmitted infections – laboratory diagnosis. Rev Assoc Med Bras 2019; 65(6):745-754 [ Links ]

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