Arteries have one-way valves that prevent the backflow of blood.

The major difference between stable and unstable angina is that unstable angina:

A) indicates the patient's condition is improving. B) responds more readily to treatment. C) is generally not relieved by rest. D) causes cardiac muscle cell death.

A worker may NOT receive benefits for a generally covered injury if any of the following are true EXCEPT the:

injury occurred while the worker was intoxicated. worker signed an acknowledgement of workplace hazards. worker failed to follow safety procedures. worker is also receiving Social Security disability benefits.