Chapter 60. Musculoskeletal Disorders
The counterirritant that produces an effect through a cooling sensation is:
Option A: Correct. The Group B counterirritants, camphor and menthol, exert their effect through a cooling sensation.
Option B: Incorrect. Capsaicin is a Group D counterirritant that exerts its effect by irritating without redness.
Option C: Incorrect. Methyl salicylate is a Group A counterirritant, also known as a rubefacient, which exerts its effect by producing redness.
Option D: Incorrect. Methyl nicotinate is a Group C counterirritant that exerts its effect by causing vasodilation.
A patient presents with an ankle injury from a game of tennis. Mild swelling is apparent, and the patient prefers an oral analgesic over a topical product. The patient has no known allergies or medical problems. Which of the following is the best choice for systemic analgesia for this patient?
Option A: Incorrect. Aspirin is not more effective than acetaminophen and is not recommended because its adverse effects may be more common and more severe.
Option B: Incorrect. While acetaminophen is the drug of choice for mild-to-moderate regional musculoskeletal pain without inflammation, this patient is experiencing inflammation.
Option C: Correct. Naproxen is an NSAID, which is a preferred choice for musculoskeletal disorders with inflammation.
Option D: Incorrect. Tramadol is an opioid analgesic. Opioid analgesics should be reserved for moderate-to-severe pain.
Which one of the following instructions should be included in an education plan for a patient using a counterirritant that contains menthol?
A. A burning sensation upon application will subside with regular use.
B. You must use this regularly for 1 to 2 weeks before the onset of effect.
C. After application, wrap the affected area tightly with a bandage.
D. Do not use with a heating pad.
Option A: Incorrect. Menthol produces a cooling sensation. The cooling sensation may be followed by a sensation of warmth, but this effect does not change with continued use.