Coinfection or comorbidity | Test(s) to perform | Timing and follow-up |
CMV | Anti-CMV IgG for patients other than MSM and injection drug users (who may be assumed to be seropositive). | At initial diagnosis. |
Gonorrhea, chlamydia* | NAAT testing (preferred) or culture with sites based on exposure history (eg, urine, urethral, vaginal, cervical, rectal, oropharyngeal). | At initial diagnosis and then at least every 6 months or more frequently if indicated. If positive, the patient should be treated and retested in 3 months because of high reinfection rates. |
Syphilis | RPR or VDRL. Confirm reactive tests with treponemal-specific antibody tests. | At initial diagnosis and then at least yearly; in areas highly endemic for syphilis or with high-risk populations (ie, MSM), more frequently. |
Latent Toxoplasma gondii | Anti-Toxoplasma IgG. | At initial diagnosis; also may be indicated in patients with initial negative serology if CD4 count drops below 100 cells/microL. |
Latent Mycobacterium tuberculosis | Tuberculin skin test or IGRA. IGRA is preferred if history of BCG vaccination or in patients with a low likelihood of returning to have their test read. | At initial diagnosis and then annually. Those with positive test results should be treated for latent M. tuberculosis after active tuberculosis has been excluded. |
Varicella virus | Anti-varicella IgG if no known history of chickenpox or shingles. | At initial diagnosis. If negative, then immunize if CD4 ≥200 cells/microL. |
Viral hepatitis | HBsAg, HBsAb, anti-HBc, HCV antibody, HAV total or IgG antibody. | At initial diagnosis and annually. If HbsAg+, order HBV RNA level. If HCV Ab+, order HCV RNA level and HCV genotype. If HBsAb is negative, immunize for HBV. If HAV IgG is negative, immunize for HAV. |
Cervical cancer, anal cancer | Cervical Pap test; anal Pap test if indicated¶. Abnormal results require follow-up with colposcopy and high-resolution anoscopy, respectively. | At initial diagnosisΔ, then 6 months later. If result negative, then annually. |
Trichomoniasis | HIV+ women should be screened with NAAT (preferred), microscopy, rapid antigen testing, or culture. | At initial diagnosis and then annually; more frequently if patient infected with other STIs. If positive, patient should be treated and retested in 3 months because of high reinfection rates. |
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