The FIRST time a patient is exposed to an allergen is referred to as the:
A. challenge dose.
B. half-life dose.
C. sensitizing dose.
D. none of the above.
C
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24 mL of active ingredient is added to 500 mL of an alcohol-based solution. What is the final concentration (v/v)?
A) 0.458% B) 0.48% C) 4.58% D) 4.8%
An intubated patient with chronic obstructive pulmonary disease (COPD) is breathing on pres-sure support ventilation (PSV) 13 cm H2O with positive end-expiratory pressure (PEEP) 5 cm H2O and a flow cycle setting of 25%
The pressure-time scalar shown in the figure is evaluated by the respiratory therapist. What action should the respiratory therapist take at this time? a. The patient and ventilator are synchro-nized and no change should be made. b. The inspiratory flow rate should be in-creased to match the patient's needs. c. The flow cycle setting should be increased to allow more time for exhalation. d. The pressure support setting should be in-creased to match the peak pressure.
Professional courtesy is provision of free or discounted services to
a. other providers or relatives. b. the homeless. c. military personnel.. d. children.
Match the following choices with the correct statement as each relates to exposure systems.
a. calipers b. Arthur Fuchs c. APR d. variable kVp system e. fixed kVp system f. AEC g. Ed C. Jerman h. phantom i. fixed kVp systems j. 120 kVp k. 15% rule l. 2 kVp rule 1. father of radiologic technology 2. also known as phototiming 3. used to measure part thickness 4. inconsistent radiographic image contrast 5. made of tissue-equivalent material