A laboratory technique specific for diagnosing Lyme disease is:
A . Polymerase chain reaction
B . Heterophil antibody test
C . Decreased serum calcium level
D . Increased serum potassium level
Answer: A
Explanation:
(A) Polymerase chain reaction is the laboratory technique specific for Lyme disease.
(B) Heterophil antibody test is used to diagnose mononucleosis.
(C) Lyme disease does not decrease the serum calcium level.
(D) Lyme disease does not increase the serum potassium level.