Table 2.

Suspicious Index in Lyme Carditis Score¹¹

Constitutional symptomsa	2
Outdoor activity/endemic area	1
Sex male	1
Tick bite	3
Age <50 years	1
Rash: erythema migrans	4

Used to evaluate the likelihood that a patient’s high-degree atrioventricular block is caused by Lyme carditis. The total summed score indicates low (0 to 2), intermediate (3 to 6), or high (7 to 12) suspicion of Lyme carditis.

^aFever, malaise, arthralgia, dyspnea.