What is the definition of an oxidizer?
a. A material that may enhance or support the combustion of other materials, generally by yielding oxygen
b. A material that may prevent the combustion of other materials, generally by absorbing oxygen
c. A material that may inhibit the combustion of other materials, generally by preventing the chain reaction
d. A material that may enhance or support the combustion of other materials, generally by being exothermic
A
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Which one of the following is the primary difference between an anaphylactic reaction and an anaphylactoid reaction?
A) An anaphylactoid reaction may occur without prior sensitization to the antigen; anaphylaxis requires prior sensitization. B) Anaphylactoid reactions are less severe than anaphylactic reactions. C) Epinephrine is contraindicated in anaphylactoid reactions, but not in anaphylactic reactions. D) Anaphylactoid reactions are commonly caused by environmental substances; anaphylactic reactions are most commonly caused by foods.
Inspiratory crackles in patients without excess secretions are most commonly associated with which of the following?
a. Reduced chest-wall sound transmission b. Airways popping open during inspiration c. Complete obstruction of the upper airway d. Mucosal edema or inflammation
When transferring bulky instruments such as rubber dam forceps or surgical forceps, the best transfer method is the
single-handed transfer. modified pen grasp. two-handed transfer. hidden syringe transfer.
________ is kneading or applying pressure by hands to a part of the patient's body to promote muscle relaxation, improve blood circulation, and reduce tension
a. Biofeedback b. Aromatherapy c. Acupuncture d. Massage