• When should you order a Lyme titer? 

    Kulie, Teresa; Vogt, Kevin; Sevetson, Erika (Family Physicians Inquiries Network, 2005-12)
    Lyme titers should be ordered for patients with signs or symptoms of disseminated Lyme disease, but who do not have the pathognomonic erythema migrans rash (strength of recommendation [SOR]: C, based on expert opinion). ...