What must be checked regularly for patients on cardiovascular medications?

The correct choice emphasizes the importance of monitoring both blood pressure and pulse in patients who are taking cardiovascular medications. These two vital signs are critical indicators of a patient's cardiovascular health and the effectiveness of the medications being administered.

Blood pressure readings provide insight into the force exerted by circulating blood on the walls of blood vessels. This is essential for assessing the management of conditions like hypertension or heart failure, where medications are typically prescribed to lower blood pressure or improve heart function. Regular monitoring helps in identifying any significant changes that may require adjustments in medication.

Pulse rate is equally important because it reflects the heart's rhythm and overall performance. Changes in pulse rate can indicate various issues, such as the potential for bradycardia (a slower than normal heart rate) or tachycardia (a faster than normal heart rate), which may necessitate immediate medical attention or a change in treatment plan.

Together, monitoring blood pressure and pulse helps ensure that patients are safely managing their cardiovascular conditions and that their medications are having the desired effect without causing adverse reactions.