Final answer:
Vasoconstrictors should be used with caution for clients with coronary artery disease, as they can increase the workload on the heart and exacerbate ischemic conditions.
Step-by-step explanation:
The true statement regarding the use of vasoconstrictors for clients who have previous coronary artery disease is that they should be avoided or used cautiously. Vasoconstrictors can increase the workload on the heart and potentially worsen ischemic conditions by narrowing the blood vessels and increasing blood pressure. In patients with coronary artery disease, their heart is already at risk, and further strain could lead to adverse events such as angina or heart attacks.
Careful consideration and cardiac monitoring are essential when administering vasoconstrictors to this population. Medications like ß-blockers are often used to treat cardiovascular conditions because they can improve cardiac function by blocking receptors associated with vasoconstriction and reducing the heart rate, hence, dilating the blood vessels.