Vitamin B derivatives are primarily involved in reactions controlling DNA synthesis.
So answer is a) B
As an x-ray tube ages, the inside can become coated with tungsten, which can cause arcing in the tube.
When there is a short circuit inside the tube, usually from the cathode to the tube envelope, tube arcing happens. A brief loss of x-ray output and a localised artefact are the consequences. On transaxial computed tomography (CT) scans, it appears as a near-parallel, equidistant streak pattern, and on coronal and sagittal CT images, as a "horizontal" hypodense band.
The most frequent cause of x-ray tube failure is an inability to effectively disperse the heat produced during routine operation. It is common knowledge that at the anode target, heat accounts for 99% or more of the kinetic energy given to the electron beam.
Therefore, an x-ray tube ages, the inside can become coated with tungsten, which can cause arcing in the tube.
Learn more about xray tube here;
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Answer:
The correct answer is : Ask the client about allergies and previous reactions.
Explanation:
In preprocedure care for a client who is scheduled to have a computed tomography of the chest with contrast who is suspected of having case of pulmonary embolism involves explanation of the procedure and questioned about his/her allergies and any previous reaction to contrast media or shellfish one.
Client is advised to avoid any type of food or beverage other than sips of water for upto 6 hour before the topography. Topography doesn't require surgical point so shaving not important.
Thus, the correct answer is : Ask the client about allergies and previous
Answer:
D) He often questions the jobs he is given by the registered nurse. He should trust the registered nurse and do what they say because they are his superior.
Explanation:
Its not A because it would be good to stay calm. You don't want to panic because it could alarm the family.
Its not B because it is a good thing that he goes through all the proper steps.
Its not C because it is good that he thinks through all the options.
Answer:
A
Explanation:
Through my experience in healthcare, this has proved to be the most useful option out of the four.
Hope this helps!
