WHICH OF THE FOLLOWING COMPRISE A

Transcription

1 HEMATOLOGY QUESTION REVIEW

2 WHICH OF THE FOLLOWING COMPRISE A LOGICAL SEQUENCE OF VESSELS AS BLOOD EXITS THE HEART? a. capillaries; arteries; veins b. veins; capillaries; arteries c. arteries; capillaries; veins d. arteries; veins; capillaries

3 OF THE LISTED BLOOD COMPONENTS, WHICH COMPRISES THE IMMUNE FUNCTION? a. plasma b. buffy coat c. erythrocytes d. hematocrit

4 THE MAJOR FUNCTION OF THE MOST COMMON PLASMA PROTEIN, ALBUMIN, IS. a. maintenance of plasma osmotic pressure b. buffering changes in plasma ph c. fighting foreign invaders d. both a and b

5 RED BLOOD CELLS ARE EFFICIENT OXYGEN TRANSPORT CELLS. OF THE FOLLOWING CHARACTERISTICS, WHICH IS THE MAJOR CONTRIBUTOR TO THE LARGE OXYGEN- CARRYING CAPACITY OF A RED BLOOD CELL? a. red blood cells lack mitochondria b. red blood cells don t divide c. red blood cells are biconcave discs d. red blood cells contain hemoglobin

6 EACH HEMOGLOBIN, THE OXYGEN TRANSPORT PROTEIN, CAN TRANSPORT OXYGEN ATOMS. a. 4 b. 40 c. 400 d. 4000

7 OXYGEN BINDS TO THE PORTION OF HEMOGLOBIN. a. globin b. oxyhemoglobin c. iron atom d. amino acid

8 IRON LEVELS IN A PATIENT S BLOOD ARE LOWERED. THIS PATIENT WOULD EXPERIENCE WHICH OF THE FOLLOWING SYMPTOMS? a. an elevated red blood cell count b. an increase in energy level c. an increase in fatigue level d. a decreased white blood cell count

9 A HEMATOPOIETIC STEM CELL WILL GIVE RISE TO. a. erythrocytes tes b. leukocytes c. platelets d. all of the above

10 PREDICT THE OUTCOME OF AN OVERDOSE OF THE HORMONE, ERYTHROPOIETIN. a. the blood viscosity increases to levels that may induce heart attacks or strokes b. oxygen-carrying capacity remains unchanged despite elevated red blood cell counts c. red blood cell counts remain unchanged, but the number of reticulocytes t increase d. blood viscosity levels decrease while oxygen-carrying y g capacity increases

11 WHAT RESPONSE WOULD YOU EXPECT AFTER TRAVELING TO A HIGH ALTITUDE AREA FOR A PERIOD OF TWO WEEKS? a. blood levels l of oxygen would remain depressed for the duration b. a surge in iron release from the liver would occur c. the kidney would secrete elevated amounts of erythropoietin ti d. there would be no change in blood composition

12 PERNICIOUS ANEMIA IS THE INABILITY OF THE BODY TO ABSORB VITAMIN B12. PREDICT THE SYMPTOM a. the patient would have reduced blood iron levels b. the patient s red blood cells would be incapable of dividing c. the patient would have low levels of hemoglobin d. the patient would not experience an effect on red blood cells

13 WHICH OF THE FOLLOWING STATEMENTS IS TRUE REGARDING THE MECHANISM CONTROLLING MOVEMENT OF WHITE BLOOD CELLS INTO DAMAGED AREAS? a. white blood cells exit the capillary and move through the tissue spaces with cytoplasmic extensions by following a trail of chemicals produced by other white blood cells b. blood capillaries break open, flooding the damaged area with white blood cells c. the damaged cells synthesize their own white blood cells d. none of the statements are true

14 AN ELEVATED NEUTROPHIL COUNT WOULD BE INDICATIVE OF. a. a viral infection b. a common cold c. an acute bacterial infection d. a parasitic infection

15 ANTIHISTAMINES COUNTER THE ACTIONS OF WHICH WHITE BLOOD CELLS? a. neutrophil b. lymphocyte c. basophil d. eosinophil

16 LEUKEMIA IS A GENERAL DESCRIPTOR FOR WHAT TYPE OF DISORDER? a. an abnormally low white blood count b. overproduction of abnormal leukocytes c. elevated counts of normal neutrophils d. overproduction of abnormal erythrocytes

17 IS THE PROGENITOR OF PLATELETS a. Thrombopoietin i b. Thrombocyte c. Megakaryocyte d. Thrombocytoblast

18 WHY DON T PLATELETS FORM PLUGS IN UNDAMAGED VESSELS? a. platelets aren t formed until damage occurs b. only contact of platelets to exposed collagen fibers and von Willebrand factor causes them to be sticky and form plugs c. they do, but the plugs are removed by macrophages d. platelets don t form plugs, it is the megakaryocytes that form the plugs

19 ACTIVATION OF THE EXTRINSIC PATHWAY OF COAGULATION REQUIRES EXPOSURE OF THE BLOOD TO. a. collagen b. tissue factor c. prothrombin activator d. serotonin

20 WHY DOESN T A CLOT FILL THE ENTIRE VASCULATURE SYSTEM ONCE IT HAS STARTED FORMING a. rapid blood flow washes away and dilutes activated clotting factors b. thrombin is inactivated by antithrombin III if it enters the general circulation i c. both a and b d. neither a nor b

21 A PATIENT MIGHT BE PRESCRIBED AN ORAL HEPARIN MEDICATION IF a. they are at risk for embolism (clots that spontaneously form and wedge in blood vessels). b. they have thrombocytopenia. c. they are a hemophiliac. d. they have a deficiency in a clotting factor.

22 IN THEORY, WHY COULD IT BE POSSIBLE FOR A PERSON WITH TYPE A BLOOD TO HAVE A NEGATIVE REACTION WHEN RECEIVING A TRANSFUSION OF WHOLE TYPE O BLOOD (INCLUDING PLASMA)? a. some Type O cells possess B agglutinogens on their surface b. the Rh factor would cross-reactreact c. blood transfusions can only occur within the same blood group d. the type O blood may have high enough levels of anti-a antibodies that could cross-react with the recipient s cells