Q: Which of the following equations best represents the relationship between body weight and joint force in the knee during walking?

$$F_{joint} = 3 \times W_{body}$$

Question 1

Which of the following best describes the primary difference between osteoarthritis and rheumatoid arthritis at the joint level?

Accepted Answer

Osteoarthritis involves the erosion of cartilage and bone-on-bone contact, while rheumatoid arthritis involves inflammation of the synovial membrane and joint swelling.

Question 2

A 55-year-old woman presents with joint pain in both hands and wrists, morning stiffness lasting over an hour, and visible swelling. Which type of arthritis is most likely?

Accepted Answer

Rheumatoid arthritis

Question 3

Which of the following is a risk factor that increases the likelihood of developing osteoarthritis?

Accepted Answer

Obesity

Question 4

What is the main reason why osteoarthritis pain typically worsens with activity?

Accepted Answer

Movement causes the eroded cartilage to expose bone ends, leading to friction and pain.

Question 5

Which of the following treatments is specifically designed to block the immune system's attack in rheumatoid arthritis?

Accepted Answer

Biological treatments (injections)

Question 6

A patient with osteoarthritis is advised to lose weight and use assistive devices. What is the primary benefit of these recommendations?

Accepted Answer

They reduce mechanical stress on weight-bearing joints, slowing cartilage erosion.

Question 7

Which of the following best explains why rheumatoid arthritis can cause systemic symptoms such as fatigue and fever?

Accepted Answer

It is an autoimmune disorder that triggers widespread inflammation.

Question 8

Which of the following statements about the progression of osteoarthritis is correct?

Accepted Answer

Symptoms gradually worsen over years, often with periods of stability.

Question 9

A patient with arthritis reports that their joint pain improves with activity and worsens with rest. Which type of arthritis does this pattern most likely indicate?

Accepted Answer

Rheumatoid arthritis

Question 10

Which of the following is a common impact of arthritis on daily life?

Accepted Answer

Difficulty with mobility, self-care, and recreational activities

Question 11

Which of the following best describes the role of synovial fluid in a healthy joint?

Accepted Answer

It provides nutrients to the cartilage and reduces friction between bones.

Question 12

Which of the following is NOT a recommended supportive treatment for arthritis?

Accepted Answer

High-impact exercise

Question 13

Which of the following equations best represents the relationship between body weight and joint force in the knee during walking?

Accepted Answer

$$F_{joint} = 3 	imes W_{body}$$

Question 14

Which of the following is a plausible reason why women are at higher risk for osteoarthritis?

Accepted Answer

The presence of estrogen may influence joint health and cartilage metabolism.

Question 15

Which of the following best explains why joint replacement surgery may be recommended for severe arthritis?

Accepted Answer

It replaces the damaged joint surfaces, reducing pain and restoring function.

Question 16

A patient with a history of joint injury is at increased risk for which type of arthritis?

Accepted Answer

Osteoarthritis

Question 17

Which of the following best describes the effect of bone spurs in osteoarthritis?

Accepted Answer

They create additional friction points, worsening pain and restricting movement.

Question 18

Which of the following medications is used to block nerve signals and reduce pain in arthritis?

Accepted Answer

Capsaicin creams

Question 19

Which of the following is a common misconception about osteoarthritis?

Accepted Answer

It only affects elderly people.

Question 20

Which of the following best explains why loss of dexterity occurs in arthritis?

Accepted Answer

Inflammation and pain limit fine motor movements and joint flexibility.

Arthritis: Types, Mechanisms, Risk Factors, and Treatments

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