Situations That Suggest Referral to a Specialist Is Appropriate Include

Multiple Choice

Situations that suggest referral to a specialist is appropriate include:

A) When chronic stable angina becomes unpredictable in its characteristics and precipitating factors
B) When a post-myocardial infarction patient develops new-onset angina
C) When standard therapy is not successful in improving exercise tolerance or reducing the incidence of angina
D) All of the above