In the following emission spectrum, a single phase, three phase and a high frequency generator are compared. Which figure represents the use of the high frequency generator?  figure_6.9 lableled.jpg                                         

Which of the following voltage waveforms accurately demonstrates a high frequency circuit? figure_4.14 labeled(2).jpg

Refer to the following anode cooling curve for a single phase unit. What is the length of time necessary for this anode to cool to 50,000 HU after 12 exposures of 600 mA, 0.2 seconds, and 70 kVp? figure_5.11.jpg

Construct a Venn diagram illustrating the following sets. U = {2, 4, 6, 8, 10, 12} A = {2, 6, 10} B = {2, 4, 8} C = {2, 8, 10, 12}

A survey of 100 families showed that 35 had a dog; 28 had a cat; 10 had a dog and a cat; 42 had neither a cat nor a dog nor a parakeet; 0 had a cat and dog and a parakeet. How many had a parakeet only?

Use the Venn diagram to list the set of elements in roster form. Find A ∪ B.

Write the set in set-builder notation. The odd natural numbers less than 33

A spontaneous breathing trial is initiated on an intubated, awake, and alert patient. After 40 minutes on an FiO2 of 30%, ABG results are as follows: pH 7.39, PaCO2 44, PaO2 85, and HCO3- 24. The patient’s vital signs remained stable through the trial. Which of the following is the most appropriate recommendation?

Which of the following patients would most likely benefit from pressure support ventilation?

After assisting with bronchoalveolar lavage and lung biopsy on a mechanically ventilated patient, the respiratory therapist notes activation of a high-pressure alarm. Peak inspiratory pressure has increased from 32 cm H2O before the procedure to 45 cm H2O after the procedure. Possible causes for the increased pressure include: 1. Bronchospasm 2. Pneumothorax 3. Pulmonary hemorrhage