What is an expected effect of effective anti-anginal therapy?

Effective anti-anginal therapy aims to alleviate the symptoms of angina, which often manifests as chest pain due to inadequate blood flow to the heart muscle. One of the primary expected outcomes of this therapy is improved exercise tolerance.

When a patient undergoes effective anti-anginal treatment, their heart becomes better supplied with oxygen, and the workload on the heart is reduced. This leads to a decreased frequency and intensity of anginal episodes, which enables the patient to engage in physical activities and exercise with less discomfort or pain. Hence, improved exercise tolerance signifies that the treatment is working as intended by allowing the heart to function more efficiently, without the limitation imposed by chest pain.

Other options, such as increased chest pain or persistent palpitations, would indicate that the therapy is not working or that the condition is worsening. Higher blood pressure isn't a typical or desired outcome of anti-anginal therapy; instead, managing blood pressure is part of a comprehensive approach to treating patients with angina.