What is the purpose of the demand-valve resuscitator?
A. It senses whether a person is breathing on their own and sends a warning signal to start CPR when breathing has ceased.
B. It regulates the pressure of the oxygen being released from the tank.
C. It forces oxygen into the lungs of a person who is not breathing.
D. It synchronizes with the flowmeter and adjusts the ratio of oxygen to carbon dioxide depending on the needs of the patient.
Answer: C
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Solve (+3) + (-6) =
A. +9 B. +3 C. -9 D. -3
Patients may tell you in advance that they faint every time their blood is drawn. When so advised, what should you ask the patient to do?
What will be an ideal response?
Which of the following is not an indication for the use of a vasoconstrictor?
A) Reducing the risk of toxicity of local anesthetic drugs B) Prolonging the duration of local anesthetic drugs C) Providing hemostasis D) Providing vasodilatation following treatment
A penetrometer is also referred to as a
a. densitometer. b. step wedge. c. sensitometer. d. gradient wedge.