What effect does chronic exposure to ultraviolet (UV) rays have on the skin that increases the risk for skin cancer?

Choice A rationale
An increase in intraocular pressure is not a cause of diabetic retinopathy. Diabetic retinopathy is caused by damage to the blood vessels in the retina due to high blood sugar levels.
Choice B rationale
While regular eye exams are important for patients with diabetes mellitus, having an eye exam every 2 years may not be sufficient for detecting and managing diabetic retinopathy. More frequent eye exams may be recommended depending on the patient’s condition.
Choice C rationale
Clouding of the lens is not a manifestation of diabetic retinopathy. This is a symptom of cataracts, not diabetic retinopathy. Diabetic retinopathy affects the blood vessels in the retina, not the lens of the eye.
Choice D rationale
Seeing spots, also known as floaters, is a common symptom of diabetic retinopathy. This occurs when blood and other fluids leak into the vitreous, the clear, jelly-like substance that fills the inside of the eye.

Choice A rationale
Fever is not a typical symptom of osteoarthritis of the knee. Osteoarthritis is a degenerative joint disease that causes pain and stiffness, but it does not typically cause systemic symptoms like fever.
Choice B rationale
This is the correct answer. Crepitus, which is a grating or crackling sound or sensation, can be a symptom of osteoarthritis of the knee. It is caused by the rubbing of bone on bone due to the loss of protective cartilage in the joint.
Choice C rationale
Malaise, or a general feeling of discomfort or illness, is not a specific symptom of osteoarthritis of the knee. While osteoarthritis can cause discomfort and limit activity, it does not typically cause generalized malaise.
Choice D rationale
Weakness can occur in the muscles around an affected joint due to lack of use or muscle atrophy, but it is not a primary symptom of osteoarthritis of the knee