Which of the following statements about a nasal cannula is true?
a. The oxygen flow rate can be adjusted anywhere from 1 LPM to 10 LPM, depending on how much oxygen the patient needs.
b. When the nasal cannula is set to the highest appropriate oxygen flow rate, it delivers 24–44 percent oxygen.
c. A nasal cannula is preferred over a nonrebreather mask because the cannula administers the oxygen through the nose instead of through the mouth.
d. It is best to see how a patient tolerates a nasal cannula before attempting to place a nonrebreather mask on the patient.
Answer: b
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The purpose of the volar plate of the metacarpophalangeal (MCP) joint of the finger is to:
a. Restrict MCP joint mobility. b. Act as a point of insertion for the interossei muscles and extensor digitorum. c. Prevent pinching of the long flexor tendons during finger flexion. d. Add surface area to the head of the metacarpal.
It is acceptable to flash instruments if you are in a hurry and don't want to delay a case
Indicate whether the statement is true or false.