Deck 11: Ergonomics

Question 1

Name the two symptoms of de Quervain's syndrome.

Answer 1

Symptoms include aching and weakness of the thumb along the base, and pain migrating into the forearm.

Question 2

Digital motion is an acceptable hand movement during treatment instrument activation.

Answer 2

False

Question 3

What is the foremost risk factor for carpal tunnel syndrome (CTS)?

A) Holding instruments too tightly
B) Repetition
C) Use of vibrating instruments
D) Cold room temperatures

Answer 3

Repetition

Question 4

Which nerve is affected when Guyon's canal syndrome is evident?

A) Ulnar nerve
B) Radial nerve
C) Median nerve
D) Nerves from the brachial plexus

Question 5

Which nerve is affected when carpal tunnel syndrome is evident?

A) Ulnar nerve
B) Radial nerve
C) Median nerve
D) Nerves from the brachial plexus

Question 8

Sharp instruments are essential to the elimination of fatigue and stress on the clinician's hand, wrist, arm, and shoulders, which cause repetitive stress injuries (RSIs). Dull instruments that deviate from their original design cause the clinician to apply additional force, resulting in increased lateral pressure, excess stroke repetitions, and a tightened grasp.

A) Both statements are true.
B) Both statements are false.
C) The first statement is true, and the second statement is false.
D) The first statement is false, and the second statement is true.

Question 9

What causes the shoulder injury trapezius myalgia?

Question 10

The fulcrum finger must remain locked during instrument activation.

Question 11

Which is a common symptom of thoracic outlet compression?

A) Numbness and tingling in the fingertips
B) Neck and shoulder muscle spasms
C) Warm extremities
D) Prominent or enhanced radial pulse

Question 12

One environmental factor to consider to reduce the occurrence of repetitive stress injuries is the temperature of the workplace; this is because a cold room temperature is related to less-relaxed, less-flexible muscles and tendons.

A) Both the statement and the reason are correct, and they are related.
B) Both the statement and the reason are correct, but they are not related.
C) The statement is correct, but the reason is not.
D) The statement is not correct, but the reason is correct.
E) Neither the statement nor the reason is correct

Question 13

List three chairside preventive measures to minimize the occurrence of carpal tunnel syndrome.

Question 14

List three chairside preventive measures to reduce the incidence of lumbar joint dysfunction.