The nurse caring for a client who is suspected of having cardiovascular disease has a stress test ordered. The client has a co-morbidity of multiple sclerosis, so the nurse knows the stress test will be drug-induced. What drug will be used to dilate the coronary arteries?
A) Thallium
B) Ativan
C) Diazapam
D) Dobutrex

Question

Quizplus · Accepted Answer

Dobutrex is a drug that is commonly used for pharmacologic stress testing to simulate exercise on the heart. It works by increasing heart rate, cardiac output, and oxygen demand, which helps to identify any areas of the heart that may have decreased blood flow. It also dilates the coronary arteries, which allows for better visualization of the heart on imaging tests. Thallium is a radioactive tracer that is used during the stress test to help visualize blood flow to the heart muscle, but it does not dilate coronary arteries. Ativan and Diazepam are benzodiazepines that are used for anxiety and sedation, respectively, and are not used in stress testing.

The Nurse Caring for a Client Who Is Suspected of Having