After opening an unresponsive patient's airway, you determine that his respirations are rapid, irregular, and shallow. You should:
A) intubate him at once.
B) apply a nonrebreathing mask.
C) suction his mouth for 15 seconds.
D) begin positive-pressure ventilations.
Answer: D) begin positive-pressure ventilations.
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Which of the following is a reason to make dilutions?
A) The concentration of a given analyte is higher than the upper limit of the method to be used. B) The concentration of analyte falls below the normal expected range. C) The sample does not contain the desired analyte to be measured. D) The type of analyte is unable to be read using the desired method or equipment.
The presence of vacuoles in the cytoplasm of neutrophils is most associated with
A) activation of complement. B) Chédiak-Higashi disease. C) bacterial infection. D) DiGeorge syndrome.
Positioning the arches too far back in the focal trough, toward the tube head, will result in
A) the anterior teeth appearing blurred and diminished in width. B) the anterior teeth appearing blurred and magnified. C) an image that appears as an exaggerated smile. D) wide radiopacities superimposed over the anterior teeth.
The Volunteer Firefighters and EMS Personnel Job Protection Act protects the jobs of volunteers responding to a presidentially declared national disaster for how long?
a. 14 days b. 1 month c. 6 months d. 3 months