To maximize the axial resolution of an ultrasound image, an anesthesiologist would use which of the following? A. Long pulses of low frequency B. Long pulses of high frequency C. Short pulses of low frequency D Short pulses of high frequency
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- Many patients, particularly children, fear injections. As a nurse, which of the following should you observe to C. Select the proper injection site, disrgearding anatomical landmarks. minimize discomfort? Select all that apply. A. Use a sharp-beveled needle in the smallest suitable length and gauge. B. Hold the syringe steady while the needle remains in tissues. ationale: D. Insert the needle quickly and smoothly to minimize tissue pulling. Subcutaneous tissue is sensitive to irritating solutions and large volumes of medication. What is the range of acceptable volumes of water-soluble medcations subcutaneously given to adults? A. 0.3 to 0.5 mL B. 0.5 to 1 mL C. 0.5 to 1.5 mL D. 1.5 to 2.0 mL ationale: Tou are to give a SC injection to a pediatric patient who's slim and underweight. How should you introduce the medication to ensure thatn it reaches the required site? A. Grasp the skin, 2 inches, 90°, intramuscularly. B. Grasp the skin, 2 inches, 90°, subcutaneously. C. Grasp the skin, 1…Case 7: Thoroughly describe axial, lateral, and/or transverse resolution in ultrasound and discuss how they are determined (pulse width, pulse length, amplitude of the wave, etc). - You don't have to discuss all three, but whichever you choose to write about please include how it is determined.Ultrasound imaging depends on the creation and detection of ultrasound pulses by a transducer placed in contact with the patient’s body. Explain the process leading from the emission of an ultrasound pulse by the transducer to the acquisition of echo data which can lead to the production of an image. Suggested word count 300.
- Which of the following is not a reason that functional MRI is preferred over PET imaging? Select one: а. The detail is far superior in functional MRI b.all of these are reasons to use fMRI over РЕT c. The FMRI procedure provides both anatomical and functional information. d. The individual does not need to be injected with a radioactive substance in functional MRI. e. Because fMRI is a newer procedure, it has replaced the need for other techniques like PET and EEG. f.none of theseDiscuss the applications,benefitsand limitations of ultra-sonography techniques. You will need to consider issues such as cost, safety and image quality.A nurse is assessing a patient’s eyes for accommodation.What actions would the nurse perform during this test? Selectall that apply.a. Bring a penlight from the side of the patient’s face andbriefly shine the light on the pupil.b. Hold a forefinger, a pencil, or other straight object about 10to 15 cm (4′′ to 6′′) from the bridge of the patient’s nose.c. Hold a finger about 6′′ to 8′′ from the bridge of thepatient’s nose.d. Darken the room.e. Ask the patient to look straight ahead.f. Ask the patient to first look at a close object, then at adistant object, then back to the close object.
- Discuss, in detail, two medical applications of ultrasound, describing how each utilizes ultrasonic signals.What tips can you use to identify the correct codes in the Anesthesia section when CRNAs administer the anesthesia? Explain in your own words.All of the following have been used as alternatives to traditional mammograms except Select one: a. MRI o b. Ultrasound O c. 3D x-ray imaging o d. microwaves e. Proton imaging
- Explain how beta and gamma radiation can be used to produce diagnostic images. You will need to focus on the use of beta and gamma radiation in a medical setting. Here you will need to demonstrate understanding of how beta and gamma radiation is used in a radiology setting to produce diagnostic images. It is important to refer to named examples of imaging modalities here. please write on paper. 200n words.A nurse is assessing a patient’s eyes for extraocular move-ments. Which action correctly describes a step the nurse would take when performing this test?a. Ask the patient to sit about 3 feet away facing the nurse.b. Keep a penlight about 1 foot from the patient’s face andmove it slowly through the cardinal positions.c. Move a penlight in a circular motion in front of thepatient’s eyes.d. Ask the patient to cover one eye with a hand or indexcard.In computed tomography, the feed of the table is 2mm and the thickness of the slice is 5mm. Determine the pitch value for the acquisition? Based on the chosen setting, how long will take to image an anatomical range of 12cm?The rotation time of computed tomography is 1.3s, ie 1 rotation per 1.3 s