TRUE or FALSE only! 1. Reading and studying the manuals of a particular instrument used in a laboratory will help you get an accurate result. 2. It is necessary to fix samples placed on depression slides. 3. A micropipette is used when transferring 2.5 microliters of liquid sample from a flask to a test tube.

TRUE or FALSE only! 1. Reading and studying the manuals of a particular instrument used in a laboratory will help you get an accurate result. 2. It is necessary to fix samples placed on depression slides. 3. A micropipette is used when transferring 2.5 microliters of liquid sample from a flask to a test tube.

Complete Textbook Of Phlebotomy

5th Edition

ISBN:9781337464314

Author:Hoeltke

Publisher:Hoeltke

Chapter10: Sample Preparation And Handling

Section: Chapter Questions

Problem 5RQ

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True or False 1. When focused on a specimen, the working distance when using the 4X lens is less than if you were using the 10X lens. 2. When focusing on the specimen using the 10X lens start with the fine adjustment knob. 3. Everything you see in the microscopic view is upside down and backward.
Explain the following areas about (X-ray machines) 1. What are the ingredients the device? 2. Working principle 3. What are the common malfunctions (X-ray equipment) I am a medical equipment engineer should know
2. Flexibility of the lining Liner material type: polyvinyl chloride (PVC) Examination of the specimen after the flexibility test: no damage at a rod with a diameter of 20 mm
TRUE or FALSE only! 1. Problem: Calibrating ocular micrometer using the stage micrometer under the low power objective. Given: OD=27 SD=8 Each space on the stage micrometer=0.0001 inch Based on the given values, the ODV is equal to 0.753 2. Problem: Calibrating ocular micrometer using the stage micrometer under the low power objective. Given: OD=27 SD=8 Each space on the stage micrometer=0.0001 inch Based on the given values, the SDV is equal to 3.54 3. Inoculation chambers can be used in transferring bacterial culture while laminar flow cabinet can be used as permanent storage for biological samples.
when testing unpasteurized milk you get a colony count of 118 colonies on plate A and 110 colonies on plate B after you plated .1 mL of a sample your .1 mL sample came from tube #6 you have prepared a serial dilution with six test tubes all tubes are a 1 to 10 dilution calculate the average CFU/ml of the original sample show work
1. a 1 mL stock sample is added to 9 mL Of diluent to make solution A, and then 2 mL of solution A is added to 18 mL of diluent to make solution B. what is the final dilution with respect to the stock? 2. in most probably number (MPN) testing what media is used for confirming test and what does a positive result looks like? 3. In Most probably number (MPN) testing what can be inferred from a positive result on the presumtive test?
TRUE or FALSE only! 1. Microscopes are necessary for biological investigations because it allows us to study the detailed structures of an organism. 2. Microscopes must be handled with care and should be carried with both hands, one under the base and one at the objectives. 3. If you are tasked to mount a specimen of a head louse and view its overall morphology the best lens to use is the oil immersion objective lenses. 4. Objective lenses initially magnify the object’s image, form the real image and concentrate and send light rays to the condenser.
Case 2: Answer each question in a clear and organized paragraph. Each paragraph should include a clear and precise answer (1–3 sentences) that directly addresses the question. (For No. 96-98) A phlebotomist, named Toru, is sent to the Emergency Room to collect an EDTA specimen for a stat type and crossmatch (pink or lavender tube) on an accident victim. He properly identifies the patient and is in the process of filling the lavender-top tube when an ER nurse tells him that the patient's physician wants to add a stat set of electrolytes for Chemistry Department to the test order. Jake acknowledges her request. He finishes filling the lavender top and grabs a green top. After completing the draw, he takes the specimens straight to the laboratory to be processed immediately. 96. One of the specimens that Jake drew is compromised. Which one is it? Your answer 97. Why is the specimen compromised and how may test results be affected? points) Your answer 98. How could Toru have avoided the…
1. The Cocaine test device only provides a preliminary qualitative analytical result. The preferred confirmatory method for quantitating the concentration of Cocaine in the specimen is Gas Chromatography/ mass Spectrometry. After performing the screening test for Cocaine, 3 specimens were interpreted as POSITIVE and 10 specimens were interpreted as NEGATIVE. How many specimens will be sent for Confirmatory testing? Why? 2. This symbol was seen on the box containing the test devices for Cocaine. What does it mean? 3. Another symbol was seen on the box containing the test devices for Cocaine. What does it mean?
is a device used in the laboratory to transfer small 1 point quantities of liquids O Micropipette All are correct Tips O Dropper Clear selection 1 point
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1. Arrange the following steps in preparing a slide in proper order by writing a-e on the blank. Hold the coverslip by its sides and lay its bottom edge on the slide close to the specimen. Holding the coverslip at a 45° angle helps. Place a drop of water on the slide. Add the specimen to the drop of water (at times, you may want to have the specimen already on the slide before adding the water). Slowly lower the coverslip so that it spreads the water out. If you get air bubbles (looking like little black doughnuts), gently press on the coverslip to move them to the edge. Place slide on a flat surface. If there are dry areas under the coverslip, add a little more water at the edge of the coverslip. To0 much water can be dabbed off with a piece of paper towel. II. Arrange the following steps in using a microscope in proper order by writing a-f on the blank. Once you have focused, adjust the fine adjustment knob to see the specimen clearly Use stage clips to secure slide Use coarse focus…