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.
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Patient and family education is the primary nursing intervention throughout the preoperative phase. Utilize every chance while the patient is being evaluated and getting ready for surgery to provide them information that will help them feel more comfortable and less anxious.
Describe anesthesia.
Anesthesia is a controlled, momentary loss of consciousness or emotion that is brought on for therapeutic purposes. A person who is anesthetized is one who is affected by anesthetic drugs.
Anesthesia has made it possible to do procedures that would otherwise be technically impossible or would leave a patient in excruciating or intolerable agony.
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Answer:
If i were you i would take medical classes if your school provides them. and you can even help yourself by learning online. taking quizzes over thing you may have read. things like that will really help you. :)
Explanation:
Answer: dependency is more likely in cultures where access to alcohol is carefully controlled.
Explanation:
Studies have shown that in cultures where access to alcohol is carefully controlled and viewed as a sign of adulthood, dependency is more likely than in cultures where alcohol is used in religious and ceremonial activities.
This has been put down to people tending to abuse alcohol when they get access to it as opposed to cultures where it is readily available.
Answer: d. Progestrone
Explanation:
A progestrone is a hormone which inhibits the contraction of the uterine muscles and also develops and maintains the lining of the uterus so as to support the development of the fetus till the period of delivery or child birth.