44 ASSIGNMENT 6 Textbook Assignment: “Clinical Laboratory,” chapter 7, pages 7-1 to 7-36. 6-1. Which of the following, if any, is considered the most appropriate source for blood specimens obtained for clinical examination? 1. By venipuncture 2. By finger puncture 3. From an artery 4. None of the above 6-2. Using the steps below, determine the correct sequence for obtaining blood by finger puncture. a. Clean finger b. Lance finger c. Milk finger d. Collect specimen e. Wipe away first drop 1. a, b, c, e, d 2. c, b, e, a, d 3. a, c, b, e, d 4. c, a, b, e, d 6-3. When performing a finger puncture, the first drop should be wiped away to avoid which of the following conditions? 1. Bacterial contamination 2. Clotting at the puncture site 3. Dilution of the specimen with alcohol 4. Dilution of the specimen with tissue fluids 6-4. How would a 5 ml blood specimen be obtained from a patient with an intravenous antibiotic being given through the left arm and blood being received through the right arm? 1. Multiple finger punctures 2. Left arm 3. Right arm 4. Hand or foot 6-5. A tourniquet applied to the arm during venipuncture should provide enough tension to compress the artery, but not the vein. 1. True 2. False 6-6. The correct needle position for venipuncture is (a) what degree angle and (b) with the bevel in what position? 1. (a) 15, (b) up 2. (a) 30, (b) up 3. (a) 15, (b) down 4. (a) 30, (b) down 6-7. A tourniquet is normally applied before and to aid in the process of venipuncture. At what point in the venipuncture procedure should you remove the tourniquet? 1. Just before needle insertion 2. Just after needle insertion, but before 3. Once all specimens have been collected 4. After needle removal 6-8. The part of the microscope on which the prepared specimen is placed for examination is called the 1. arm 2. base 3. frame 4. stage