### Educational Resource: Understanding Ultrasonics**Science Final Exam Preparation**#### Question 3 of 190: Science**Passage for Analysis:**The science of producing and transmitting sound waves in materials has become widespread with many practical applications. Ultrasonics was first developed during World War II as a method of detecting enemy submarines. Today, ultrasonics has many applications. When the waves used are of a low amplitude, ultrasonics can be used to map the ocean's depths, detect flaws in materials, locate cancers in the human body, and scan fetuses for deformities.Higher-amplitude waves are used in cleaning, manufacturing materials, and determining fatigue tests for metals. The destruction of bacteria and the use of tightly focused ultrasound as a surgical knife are biological applications of high-amplitude waves.**Multiple Choice Question:**According to the passage, what is a low amplitude ultrasonic scanning of the human body able to do?- A. Remove bacteria painlessly- B. Give a clear picture of interior body details- C. Remove cancerous materials without radiation- D. Aid the body's immune system- E. Serve as an antiviral agent in infectious cases**Correct Answer: B. Give a clear picture of interior body details**---This passage provides insights into the various applications of ultrasonics, emphasizing the distinction between low and high amplitude waves and their respective uses in different fields. Understanding these principles is crucial for recognizing the utility of ultrasonics in both technological and medical advancements.

Ultrasound was first developed in World war 2 and has a wide spectrum of usage in the current day…

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Phlebotomy Essentials

6th Edition

ISBN:9781451194524

Author:Ruth McCall, Cathee M. Tankersley MT(ASCP)

Publisher:Ruth McCall, Cathee M. Tankersley MT(ASCP)

Chapter1: Phlebotomy: Past And Present And The Healthcare Setting

Section: Chapter Questions

Problem 1SRQ

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The field of view is the maximum area visible through the lenses of a microscope, and it is represented by a diameter. To determine the diameter of your field of view, you can place a transparent metric ruler under the low power (10X) objective of a microscope. You would focus the microscope on the scale of the ruler and measure the diameter of the field of vision in millimeters. Refer to the image taken of this preparation below. What is the approximate field of view as seen by this 10X objective. Note: This microscope has a 10X eyepiece, giving a total magnification of 100X. 0000 1mm 2mm 3mm 4mm 1mm
In light microscopy, when magnification is increased, the lens focuses closer to the sample. This makes the user more likely to ram the sample into the lens. Why is it common for the lens to focus closer to the sample at higher magnifications? What can be done to mitigate this risk?
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How does the numerical aperture of an objective lens affect resolution? Question options: Numerical aperture is the optical plane visible for each objective lens Numerical aperture decreases the amount of excess light on a specimen increasing the resolution and clarity Numerical aperture is the loss of light due to changes in density between the specimen and the objective lens Numerical aperture is a measure of the amount of light an objective lens can accept producing higher resolution and allowing smaller structures to be visualized with greater clarity
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Ciprodex® otic suspension contains a combination of an antibiotic and steroid for an ear infection. If there are twenty drops for every milliliter, how long would a 7.5 mL bottle last if the directions on the Rx read “iii gtts in both ears BID”? Round DOWN to the nearest day. Assume NO missing doses, overfill, etc.
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