An older adult patient has been prescribed telithromycin for community-acquired pneumonia. The nurse ...

An older adult patient has been prescribed telithromycin for community-acquired pneumonia. The nurse has contacted the patient's primary care provider because the patient is on replacement corticosteroid therapy. Why is concomitant use of telithromycin and corticosteroids contraindicated?
A)The woman may be unable to adequately metabolize her corticosteroid.
B)The effect of the corticosteroid may be greatly increased.
C)The woman may have an increased risk of thromboembolism.
D)The corticosteroid may negate the efficacy of the telithromycin.