How many electrical circuits are used in a dental x-ray machine?
a. One
b. Two
c. Three
d. Four
b. There are two electrical circuits used in a dental x-ray machine. A filament circuit provides low voltage to the cathode filament to provide the source of electrons. A high-voltage circuit provides the high voltage needed to accelerate the electrons from the negative cathode to the positive anode.
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A patient who is extremely claustrophobic and anxious may be given a(n) ________ MRI
a. closed b. private c. open d. rapid
What type of drugs are used on cystic fibrosis patients to thin out the sticky, viscous mucus?
A) Antihistamines B) Mucolytics C) Bronchodilators D) Mast cell inhibitors
Explain why a HEPA mask or an equivalent is used in an airborne-precautions room instead of a regular surgical mask.
What will be an ideal response?
Indications for incentive spirometry include:
a. post-abdominal surgery. b. respiratory muscle weakness. c. optimization of bronchodilator therapy. d. inability to effectively deep breathe.