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72 Cards in this Set

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1 . A continued shift to the left with a falling total WBC count probably indicates

a. progress toward normal recovery
b. a decrease in immature neutrophils
c. a breakdown of the body's defense mechanism and is a poor prognosis
d. a decrease in parasitic and allergenic conditions
c. a breakdown of the body's defense mechanism and is a poor prognosis
2 . Which of the following conditions indicates that the counting chamber is properly loaded?

a. There is a thin, even film of fluid under the coverglass
b. The fluid flows into the grooves at the edges of the chamber
c. Air bubbles are seen in the field
d. The chamber is flooded
a. There is a thin, even film of fluid under the coverglass
3 . Brown.

a. Pyridium-«
b. Bile
c. Blood
d. Fats (chyle)
b. Bile
4 . The hematocrit for a normal, healthy female is within what range?

a. 30 to 40 percent
b. 37 to 47 percent
c. 42 to 50 percent
d. 44 to 52 percent
b. 37 to 47 percent
5 . Red-brown.

a. Pyridium-«
b. Bile
c. Blood
d. Fats (chyle)
c. Blood
6 . If necessary, which, if any, of the following substances may be used for cleaning the lenses on a microscope?

a. Alcohol
b. Bleach
c. Xylene
d. None of the above
c. Xylene
7 . The Rapid Plasma Reagin test for syphilis is best used with what type of specimen?

a. Serum
b. Plasma
c. Whole blood
d. Either serum or plasma
a. Serum
8 . Staphylococcus aureus.

a. Impetigo
b. Gas gangrene
c. Whooping cough
d. Strep throat
a. Impetigo
9 . Bordetella pertussis.

a. Impetigo
b. Pneumonia
c. Strep throat
d. Whooping cough
d. Whooping cough
10 . The part of the microscope on which the prepared specimen is placed for examination is called the

a. arm
b. base
c. frame
d. stage
b. base
11 . When performing a finger puncture, the first drop should be wiped away to avoid which of the following conditions?

a. Bacterial contamination
b. Clotting at the puncture site
c. Dilution of the specimen with alcohol
d. Dilution of the specimen with tissue fluids
d. Dilution of the specimen with tissue fluids
12 . To properly perform the RPR Card Test, the serum sample should be from arterial blood that has been separated from the blood cells as soon after collection as possible.

a. TRUE
b. FALSE
c. Not sure
d. Don^t know
b. FALSE
13 . To arrive at the number of RBCs per mm 3 , total the number of cells counted in the five fields and multiply by

a. 0.1
b. 10
c. 100
d. 10,000
d. 10,000
14 . The total magnification available by using the lens color coded red is

a. 1000X
b. 450X
c. 100X
d. 10X
a. 1000X
15 . The largest of the normal WBCs is the

a. monocyte
b. lymphocyte
c. eosinophil
d. basophil
a. monocyte
16 . The correct needle position for venipuncture is (a) what degree angle and (b) with the bevel in what position?

a. (a) 15, (b) up
b. (a) 30, (b) up
c. (a) 15, (b) down
d. (a) 30, (b) down
a. (a) 15, (b) up
17 . Which of the following chemical preparations is frequently used to detect fungi?

a. Hydrogen sulfoxide
b. Hydrogen peroxide
c. Potassium hydroxide
d. Potassium sulfate
c. Potassium hydroxide
18 . Yersinia pestis.

a. Plague
b. Pneumonia
c. Gas gangrene
d. Strep throat
a. Plague
19 . Streptococcus pneumoniae.

a. Impetigo
b. Plague
c. Pneumonia
d. Strep throat
c. Pneumonia
20 . The specific gravity of a liquid or solid is the weight of the substance as compared to an equal volume of

a. ethanol
b. methanol
c. distilled water
d. normal saline
c. distilled water
21 . There are seven types of casts or sediments found in urine. Of the four listed below, which may be attributed to lupus?

a. Red cell casts
b. Fatty casts
c. Granular casts
d. Epithelial casts
b. Fatty casts
22 . 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

a. a, b, c, e, d
b. c, b, e, a, d
c. a, c, b, e, d
d. c, a, b, e, d
d. c, a, b, e, d
23 . What is the term used for the volume of erythrocytes expressed as a percentage of the volume of whole blood in a sample?

a. Hematocrit
b. Hemoglobin
c. Red blood count
d. Complete blood cell count
a. Hematocrit
24 . Which of the following conditions may cause leukopenia?

a. Strep throat
b. Psittacosis
c. Anaphylactic shock
d. Each of the above
d. Each of the above
25 . The main reason for using the cover glass included with the hemacytometer instead of an ordinary cover glass is because the hemacytometer cover glass

a. is clearer
b. has an even surface
c. is thicker
d. is less likely to break
b. has an even surface
26 . Select from those listed below the term used to describe an abnormally high WBC count.

a. Leukocytosis
b. Erythrocytosis
c. Leukopenia
d. Pancytopenia
a. Leukocytosis
27 . Which of the following structures provides some bacteria with a means of movement?

a. Capsule
b. Spore
c. Spirillum
d. Flagellum
d. Flagellum
28 . A report on urine transparency is valid regardless of standing time.

a. TRUE
b. FALSE
c. Not sure
d. Don^t know
b. FALSE
29 . If a smear used in a differential count is to be saved for reexamination, remove the immersion oil by placing a piece of lens tissue over the slide and moistening the tissue with

a. alcohol
b. water
c. xylene
d. acetone
c. xylene
30 . To arrive at the number of white cells per mm of blood, total the number of cells counted in the four fields and multiply by

a. 0.5
b. 5
c. 50
d. 5000
c. 50
31 . Clostridium perfringens.

a. Impetigo
b. Pneumonia
c. Gas gangrene
d. Whooping cough
c. Gas gangrene
32 . In the GramGÇÖs stain procedure, which of the following chemicals acts as the mordant?

a. Crystal violet
b. Safranin
c. Iodine
d. Acetone
c. Iodine
33 . On a properly prepared slide for a differential count, the smear will

a. extend from one side of the slide to the other
b. be evenly distributed on the entire slide
c. show no wavy or blank spots
d. show smooth even edges
b. be evenly distributed on the entire slide
34 . The addition of one drop of 5 percent acetic acid to urine sediment will disintegrate

a. white blood cells
b. mucous threads
c. casts
d. red blood cells
d. red blood cells
35 . A shift from leukocytosis toward leukopenia in a patient with a systemic bacterial infection is a good sign.

a. TRUE
b. FALSE
c. Not sure
d. Don^t know
b. FALSE
36 . Increased eosinophils.

a. Recovery
b. Parasitic Infection
c. Breakdown of the body^s defense
d. Active Tuberculosis
b. Parasitic Infection
37 . Light travels from the objective to the ocular lens through what component of the microscope?

a. Body tube
b. Iris diaphragm
c. High-powered lens
d. Revolving nosepiece
b. Iris diaphragm
38 . A CBC includes which of the following?

a. Total RBC count
b. Hematocrit
c. Differential WBC count
d. All of the above
d. All of the above
39 . The hemacytometer is designed primarily for what purpose?

a. To differentiate between red blood cells and white blood cells
b. To count white blood cells
c. To count red blood cells
d. Both b and c
d. Both b and c
40 . Which of the following factors affect hemoglobin values?

a. Age
b. Sex
c. Altitude
d. All the above
d. All the above
41 . Milky.

a. Pyridium-«
b. Bile
c. Blood
d. Fats (chyle)
d. Fats (chyle)
42 . What is the function of leukocytes?

a. To carry oxygen through the blood
b. To control various disease conditions
c. To aid in clotting the blood
d. Each of the above
b. To control various disease conditions
43 . The best urine specimen is that taken during which of the following times?

a. First morning
b. Random
c. Fasting
d. 24 hour
a. First morning
44 . What purpose does toluene serve when used in conjunction with a urine specimen?

a. It increases the albumin
b. It dissolves unwanted cells
c. It protects the specimen from decomposition
d. It dissolves the albumin
c. It protects the specimen from decomposition
45 . Which of the following actions is considered appropriate if a patientGÇÖs RPR is reactive?

a. Give patient penicillin
b. Send patient to lab for further testing
c. Counsel patient against engaging in unsafe sex
d. Report results of RPR to patientGÇÖs commanding officer
b. Send patient to lab for further testing
46 . What is the total capacity of the capillary pipette provided in a Unopette-« for RBC count?

a. 0.5-¦l
b. 1.0-¦l
c. 10.0-¦l
d. 100.0-¦l
c. 10.0-¦l
47 . All of the following are classifications of bacteria EXCEPT

a. Temperature and moisture content
b. Growth requirements and morphologic characteristics
c. Toxins produced and disease-producing ability
d. GramGÇÖs stain reaction morphology and colonial
a. Temperature and moisture content
48 . Decreased WBC count with increased mature cells.

a. Recovery
b. Parasitic Infection
c. Breakdown of the body^s defense
d. Active Tuberculosis
b. Parasitic Infection
49 . Properly prepared differential slides require a longer rinse time than stain time.

a. TRUE
b. FALSE
c. Not sure
d. Don^t know
b. FALSE
50 . A differential blood count is the percentage of distribution in the blood of which of the following types of cells?

a. Lymphocytes
b. Monocytes
c. Leukocytes
d. Erythrocytes
a. Lymphocytes
51 . What type of leukocyte comprises the largest percentage of cells in the circulating blood?

a. Lymphocyte
b. Neutrophil
c. Erythocyte
d. Thrombocyte
b. Neutrophil
52 . A tourniquet applied to the arm during venipuncture should provide enough tension to compress the artery, but not the vein.

a. TRUE
b. FALSE
c. Not sure
d. Don^t know
b. FALSE
53 . What objective should be used for a detailed study of stained bacterial smears?

a. Low power
b. High dry
c. Oil immersion
d. Either b or c above
c. Oil immersion
54 . What objective should be used for counting RBCs?

a. Low power
b. High power
c. Oil immersion
d. High dry
a. Low power
55 . For a 24-hour urine specimen collection, which of the following statements is INCORRECT?

a. Discard the first specimen
b. Add a preservative after the first specimen has been obtained
c. Discard the last specimen
d. Refrigerate the specimen during the collection period
c. Discard the last specimen
56 . 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?

a. Multiple finger punctures
b. Left arm
c. Right arm
d. Hand or foot
c. Right arm
57 . Which of the following, if any, is considered the most appropriate source for blood specimens obtained for clinical examination?

a. By venipuncture
b. By finger puncture
c. From an artery
d. None of the above
a. By venipuncture
58 . Dark orange.

a. Pyridium-«
b. Bile
c. Blood
d. Fats (chyle)
a. Pyridium-«
59 . Autotrophic bacteria require an environment that supplies them with nourishment.

a. TRUE
b. FALSE
c. Not sure
d. Don^t know
b. FALSE
60 . When counting cells, to arrive at a correct count, the cells touching the lines on the_______ and ________are counted in addition to all cells totally within each square.

a. Left, top
b. Left, bottom
c. Right, top
d. Right, bottom
a. Left, top
61 . Which of the following colors would be considered abnormal in a urine specimen?

a. Colorless
b. Amber
c. Straw
d. Red
d. Red
62 . 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?

a. Just before needle insertion
b. Just after needle insertion, but before vacutainer
c. Once all specimens have been collected
d. After needle removal
c. Once all specimens have been collected
63 . What type of bacterial toxin completely lyses erythrocytes?

a. Exotoxin
b. Endotoxin
c. Beta hemolysin
d. Alpha hemolysin
c. Beta hemolysin
64 . Decreased WBC count with increased juvenile cells.

a. Recovery
b. Parasitic Infection
c. Breakdown of the body^s defense
d. Active Tuberculosis
b. Parasitic Infection
65 . When viewing a smear for a differential count, you identify the cells with the large, scattered dark blue granules that are darker than their nuclei as

a. lymphocytes
b. monocytes
c. basophils
d. neutrophils
c. basophils
66 . All of the following statements are true about antigens EXCEPT that an antigen

a. is inherently unstable structurally
b. must be foreign to the body
c. possesses a high molecular weight
d. has a high specificity to stimulate tissues to produce antibodies
a. is inherently unstable structurally
67 . In the microscopic examination of urine sediment, scan the slide using the low per objective and examine it in detail using which of the following objectives?

a. Low power
b. High dry
c. High power
d. Oil immersion
c. High power
68 . All of the following are components of the microscopeGÇÖs illumination system EXCEPT

a. internal light source
b. condenser
c. external light source
d. iris diaphragm
c. external light source
69 . The difference between anaerobes and aerobes is that anaerobes need oxygen to reproduce.

a. TRUE
b. FALSE
c. Not sure
d. Don^t know
b. FALSE
70 . A subnormal RBC count may indicate that the patient has which of the following listed conditions?

a. Leukopenia
b. Anemia
c. Dehydration
d. Uremia
b. Anemia
71 . Increased monocytes.

a. Recovery
b. Parasitic Infection
c. Breakdown of the body^s defense
d. Active Tuberculosis
d. Active Tuberculosis
72 . Both the number of squares and the counting procedure for WBCs is the same

a. TRUE
b. FALSE
c. Not sure
d. Don^t know
a. TRUE