Chapter 2 Medical Questions

1. When the coagulation of fresh whole blood is preB. Plasma vented through th euse of an anticoagulant, the straw colored fluid that can be seperated from the cellular elements is A. serum B. plasma C. whole blood D. platelets 2. Which characteristic is inaccurate with respect to the B. is used for most routine anticoagulant K, EDTA? coagulation studies A. removes ionized calcium from fresh whole blood by the process of chelation B. is used for most routine coagulation studies C. is the most commonly used anticoagulant in hematology D. Is conventionally placed in lavender topped evacuated tubes 3. Heparin inhibits the clotting of fresh whole blood by neutralizing the effect of A. platelets B. ionized calcium C. fibrinogen D. thrombin D. thrombin 4. Questions 4-7 ______ EDTA A. Red ______Heparin B. Lavender ______NA citrate C. Blue ______None D. Green Lavender- EDTA Green-Heparin Blue -Na Citrate Red- none 1/4 5. A peripheral blood smear can be prepared from D. both A and B A. EDTA- anticoagulated blood within 1 hour of collection. B. free-flowing capillary blood C. citrated whole blood D. both A and B 6. Identify the characteristic(s) of a good peripheral D. All of the above blood smear A. it progresses from thick at the point of origin to thin. B. It has a blunt feathered termination C. The outer margins do not touch the edges of the slide. D. All of the above 7. Poor blood smears can be caused by D. All of the above A. a delay in the preparing the smear once the drop of blood has been placed on the slide. B. a drop of blood that is too small or too large C. holding the pusher slide at the wrong angle and poor drying conditions. D. All of the above 8. If a blood smear is too long, the problem can be re- B. increasing the angle of solved by the pusher slide A. decreasing the angle of the pusher slide B. increasing the angle of the pusher slide C. using a larger drop of blood. D. pushing the slide slower in smearing out the blood. 9. The examination of bone marrow is useful in D. Both B and C A. diagnosing a bleeding disorder B. diagnosing some disorders associated with erythro2/4 cytes and leukocytes C. diagnosing acute leukemias D. both B and C 10. Appropriate bone marrow aspiration sites in an adult D. Both A and B are the A. anterior and posterior iliac crest B. sternum and posterior iliac crest C. tibia and sternum D both A and B 11. 26-28 Match the following type of staining effect with blu-purple- basic stain the color it imparts to blood cells. orange red-acidic stain pink-lilac-neutrophilic ___basic stain A. orange-red color ___acidic stain B. pink-lilac color ___neutrophilic C. blue-purple color 12. 29-32 Identify the following as Romanowsky-type or non-Romanowsky type stains. ___wright A. Romanowsky ___May-ginwald B. Non-Romanowsky ___Giemsa ___Methylene Blue Romanowsky-wright Romanowsky-May-ginwald Romanowsky-Giemsa Non Romanowsky- Methylene Blue 13. If a blood smear stains too red on microscopic exami- C. the buffer was too acidic nation of a wright stained preparation, possible causes and the exposure time too include that short. A. the staining time was too long B. the stain was too basic C. the buffer was too acidic and the exposure time was too short. D. the buffer was too basic and the exposure time was too long. 3/4