Roentgen named his discovery the roentgen ray
Indicate whether the statement is true or false
FALSE
Explanation: When Roentgen reported his finding at a scientific meeting, he spoke of it as an x-ray because the symbol x represented the unknown. After his findings were reported and published, fellow scientists honored him by calling the invisible ray the roentgen ray.
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An atrial arrhythmia that occurs when the pacemaker role switches from the SA node to the atria and back again is called:
A) Atrial Flutter. B) Wandering Pacemaker. C) Atrial Tachycardia. D) Atrial Fibrillation.
During a single-breath capnogram, what does the occurrence of a plateau indicate?
a. Exhalation of mainly dead space gas b. Inspiration of fresh respiratory gas c. Exhalation of mixed alveolar and dead space gas d. Exhalation of mainly alveolar gas
A hemodynamically unstable patient being ventilated in the volume-controlled continuous man-datory ventilation (VC-CMV) mode is triggering inspiration at a rate of 25 breaths/min and has the following arterial blood gas results:
pH 7.50, partial pressure of carbon dioxide (PaCO2) 30 mm Hg, partial pressure of oxygen (PaO2) 98 mm Hg, arterial oxygen saturation (SaO2) 100%, bicarbonate (HCO3?) 24 mEq/L. The respira-tory therapist should perform which of the following? a. Extubate and administer noninvasive posi-tive pressure ventilation (NIV). b. Change the mode to pressure-controlled continuous mandatory ventilation (PC-CMV). c. Change the mode to volume-controlled intermittent mandatory ventilation (VC-IMV). d. Sedate and paralyze the patient.
Which modifier represents multiple procedures?
a. -47 b. -22 c. -80 d. -51