Which hemostatic agent should be used with caution due to its potential to elevate blood pressure and cause tachycardia?

Racemic epinephrine is the hemostatic agent that should be used with caution due to its potential effects on the cardiovascular system, such as elevating blood pressure and causing tachycardia. This agent is usually employed in emergency situations where there is significant bleeding or when a localized vasoconstrictive effect is required, such as in certain dental procedures.

Racemic epinephrine contains both alpha and beta-adrenergic agonist properties, which can lead to an increase in heart rate and blood pressure upon administration. This makes it essential for dental professionals to monitor the patient's cardiovascular status and be aware of any pre-existing conditions such as hypertension or arrhythmias before using this agent.

In contrast, other agents listed may have different uses or mechanisms and do not share the same level of cardiovascular risk associated with racemic epinephrine. Adrenaline, a related compound, also has similar effects but is more broadly used in various medical emergencies. Vasopressin primarily acts on the vascular system and can cause vasoconstriction without significantly affecting heart rate. Felypressin, used as a vasoconstrictor in dental procedures, does not typically cause hypertension or tachycardia as it is a synthetic vasopress