A nurse is conducting a mobility assessment on a patient.

The patient can stand up from a seated position using a cane for support.

Which of the following activity levels should the nurse assign to the patient?

Choice A rationale
This statement is incorrect. As people age, the flexibility of the lens of the eye actually decreases, not increases. This can lead to conditions such as presbyopia, which is difficulty focusing on close objects.
Choice B rationale
As people age, their depth perception can decrease. This can make it more difficult to judge distances and can increase the risk of falls.
Choice C rationale
This statement is incorrect. As people age, the tone of the eye muscles can decrease, not increase. This can lead to conditions such as presbyopia.
Choice D rationale
This statement is incorrect. As people age, the natural lens of the eye can actually thicken, not reduce. This can lead to conditions such as cataracts.

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.