a nurse is ordering equipment for a medical-surgical unit.
Which of the following equipment should the nurse identify as being ergonomic? (Select all that apply)

Choice A rationale
This statement is not accurate. Relapsing-remitting multiple sclerosis (RRMS) is characterized by periods of new symptoms or relapses that develop over days or weeks and usually improve partially or completely. These episodes are followed by periods of remission, where the disease does not progress. Therefore, RRMS does not cause a steady and gradual decline in function.
Choice B rationale
This is the correct answer. Stress and extreme fatigue can trigger a relapse in RRMS1. Therefore, it is important for patients to avoid these triggers to manage their symptoms effectively.
Choice C rationale
This statement is incorrect. RRMS is the most common disease course at the time of diagnosis. It is not the least common type of multiple sclerosis.
Choice D rationale
This statement is not accurate. Medications for RRMS, known as disease-modifying treatments (DMT), are designed to reduce the frequency and severity of relapses. They are not intended to be taken only during times of relapse, but rather on an ongoing basis to manage the disease.

Choice A rationale
Skeletal muscles do not enable the heart to contract with each heartbeat. The heart has its own specialized muscle tissue known as cardiac muscle, which allows it to contract and pump blood throughout the body.
Choice B rationale
Skeletal muscles do not enable the bladder to contract during voiding. The detrusor muscle, a smooth muscle found in the wall of the bladder, contracts during urination to expel urine from the body.
Choice C rationale
Skeletal muscles do not enable the bronchioles to dilate in the lungs. The dilation and constriction of the bronchioles are controlled by the autonomic nervous system and the smooth muscles in the walls of the bronchioles.
Choice D rationale
Skeletal muscles do enable a hand to contract and form a fist. Skeletal muscles are responsible for all voluntary movements, including making a fist. When you want to make a fist, your brain sends a signal to the skeletal muscles in your hand and forearm, telling them to contract. This pulls on the tendons connected to your fingers, causing them to move and form a fist.