Daily Quad Quiz 7

The triceps are innervated by what nerve?

Which of the following types of burns would be the least painful?

• superficial

• superficial partial-thickness

• deep partial-thickness

• full-thickness

Answer explanation

A full-thickness burn would be the least painful due to the destruction of the sensory nerves. Hypertrophic scarring and wound contractures are likely to develop without preventative measures at this level.

Which of the following zones of injury corresponds with the most severe area of injury at a burn site that sustained irreversible cell damage?

• • 
    zone of erythema 

• • 
    zone of stasis

• 
  zone of coagulation

• zone of hyperemia

Answer explanation

There are three zones of injury at the site of a burn. The centermost area is classified as the zone of coagulation. This area corresponds with the most severe injury with irreversible cell damage. The zone of stasis is circumferentially outside of the zone of coagulation and corresponds to the area of the burn that sustained reversible damage. The outermost area of a burn is termed the zone of hyperemia and is characterized by inflammation.

Which of the following signs or symptoms would most likely lead a health care provider to perform an ankle-brachial index measurement on a patient?

• dizziness

• heart palpitations

• • 
    angina

• claudication

Answer explanation

The ankle-brachial index is an objective measurement that can be used to determine the presence of peripheral arterial disease. Claudication is a symptom commonly reported by patients with peripheral arterial disease due to diminished perfusion to the lower extremities.

What limitation of movement would be most anticipated in a patient with a frozen shoulder? 

• 
  lateral rotation, abduction, medial rotation

• lateral rotation, adduction, medial rotation

• • 
    lateral rotation, flexion, medial rotation  

• • 
    lateral rotation, extension, medial rotation

Answer explanation

Adhesive capsulitis (i.e., frozen shoulder) results in a loss of range of motion in a capsular pattern. The condition is caused by adhesive fibrosis and scarring between the capsule, rotator cuff, subacromial bursa, and deltoid.