A patient is in the emergency room with a fever. Blood pressure is 90/55 mm Hg. The ER physician is concerned about septic shock and orders the infusion of fluid. What exams would be most helpful in assessing the infection status to the patient?
A. nasal swabbing
B. chest radiograph
C. CBC
D. oral temperature
Answer: C. CBC
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When using a Bourdon gauge against high outflow resistance, what will the flowmeter reading show?
a. Exceed actual flow b. Be less than actual flow c. Equal actual flow d. Equal 50 psig
A mechanically ventilated patient becomes severely hypoxemic every time the therapist disconnects her from the ventilator for purpose of performing suctioning. What can the therapist do to avoid this situation?
A. Attach a closed-circuit suction catheter system to the patient's breathing circuit. B. Hyperoxygenate the patient with an Fio2 of 1.0 before the suctioning procedure. C. Limit the suction procedure to less than 10 seconds. D. Reduce the vacuum pressure used during the suctioning procedure.
Which of the following best describes how x-rays are actually produced in the dental x-ray tube?
a. Radioactive particulate matter undergoes controlled disintegration. b. Electrical current passes through an oil mixture, creating minute explosions. c. Low milliamperage current is transformed to high kilovoltage current. d. High-speed electrons collide with target material electrons.
Which of the following is not an advantage of using a computerized bookkeeping system?
A. Built-in tax tables calculate tax liabilities. B. The computer performs repetitive tasks. C. The computer performs mathematical calculations. D. The bookkeeping system is available even if the power goes out. E. The computer produces reports automatically.