HEMATOLOGY PRE-TEST

32問 • 1年前

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For adult capillary puncture: a. Index finger b. Ring finger c. Index or ring finger d. Middle or ring finger

d. Middle or ring finger

The tourniquet should be applied above the venipuncture sl!e? a. 1to 2inches b. 3 to 4 inches c. 6 to 8 inches d. 10 to 12 inches

b. 3 to 4 inches

Proper application of the tourniquet: a. Like a ribbon b. Loop toward the shoulder c. Ends pointed towards the shoulder d. Ends pointed away from the shoulder

c. Ends pointed towards the shoulder

Blood pressure cuffs can be used as tourniquets. They are used primarily for veins that are difficult to locate. The cuff should be inflated to a pressure of: a. 40 mm Hg b. 80 mm Hg c. 100 mm Hg d. 120 mm Hg

a. 40 mm Hg

AccuVein is a handheld medical device that helps medical staff visualize veins before phlebotomy. The device emits light and is held 7 INCHES OVER THE POTENTIAL PHLEBOTOMY SITE. a. Visible light b. Ultraviolet light ¢. Infrared light d. UV and infrared light

¢. Infrared light

Select the needle most commonly used in standard venipuncture in an adult: a. One inch, 18 gauge b. One inch, 21 gauge c. One-half inch, 23 gauge d. One-half inch, 25 gauge

b. One inch, 21 gauge

Higher temperatures can cause: a. Decrease in blood draw volume b. Increase in blood draw volume c. Both of these d. None of these

a. Decrease in blood draw volume

High altitude: a. Decrease in blood draw volume b. Increase in blood draw volume c. Both of these d. None of these

a. Decrease in blood draw volume

Resting phase: a. Anaphase b. Interphase ¢. Metaphase d. Telophase

b. Interphase

The cell selected for chromosome analysis is usually in the stage of cellular division. a. Prophase b. Metaphase c. Anaphase d. Telophase

b. Metaphase

A patient has a hemoglobin of 12.3 g/dL. What is the expected range for the patient’s hematocrit? a. 41.0% b. 36.9% c.24.6% d.NOTA

b. 36.9%

Human hematopoietic stem cells express: a. CD3 b.CD10 c. CD34 d. CD56

c. CD34

Erythropoietin s primarily produced by the: a. Kidney b. Bone marrow c. Yolk sac d. Red cells

a. Kidney

The average diameter of a normal erythrocyteis _____ um. a. 5.2 b.6.4 c.7.2 d.8.4

c.7.2

The average adult has g of total iron. a. 0.2 t 0 1.4 b.1.5 t0 3.4 c.3.5 tO 5.0 d.5.1 TO 10.0

c.3.5 tO 5.0

Severe increase in abnormal erythrocytes in each microscopic field; an equivalent descriptive term is MANY: a. 1+ b. 2+ c. 3+ d. 4+

c. 3+

RBC with membrane folded over: a. Aplastic anemia b. Iron deficiency anemia ¢. Hemoglobin C, hemoglobin SC disease d. Sickle cell anemia, thalassemia

¢. Hemoglobin C, hemoglobin SC disease

Increased ESR: a. Hyperalbuminemia b. Hyperfibrinogenemia ¢. Microcytosis d. Polycythemia

b. Hyperfibrinogenemia

The RDW and MCV are both quantitative descriptors of erythrocyte size. If both are increased, the most probable erythrocytic abnormality would be: a. Iron deficiency anemia b. Acquired aplastic anemia ¢. Megaloblastic anemia d. Hemoglobinopathy

¢. Megaloblastic anemia

Lazy leukocyte syndrome involves which cell type? a. Erythrocytic series b. Monocyte-macrophage series c. Neutrophilic series d. Platelet series

c. Neutrophilic series

Cells have distinctive nuclear lobulation and have been termed “flower cells” a. Acute myelogenous leukemia b. Adult T cell leukemia/lymphoma c. Hairy cell leukemia d. Hodgkin's lymphoma

b. Adult T cell leukemia/lymphoma

What reagents are used in the PT test? a. Thromboplastin and sodium chloride b. Thromboplastin and potassium chloride ¢. Thromboplastin and calcium d. Actin and calcium chloride

¢. Thromboplastin and calcium

The function of thromboplastin in the prothrombin test is to provide ____ to the assay. a. Kaolin b. Fibrinogen c. Phospholipoprotein d. Thrombin

c. Phospholipoprotein

If a child ingested rat poison, which of the following test should be performed to test the effect of the poison on a. APTT b. PT c. Fibrinogen assay d. Thrombin time

b. PT

Reference values for PTT in adults: a. 12 to 14 seconds b. 13 to 15 seconds c. 25 to 35 seconds d. 1 to 2 minutes

c. 25 to 35 seconds

Typical PTT therapeutic range: a. 10 to 15 seconds b. 20 to 40 seconds c. 60 to 100 seconds d. 100 to 150 seconds

c. 60 to 100 seconds

A fresh blood sample was sent to the laboratory at 8:00 a.m. for a PT test. At 4:00 p.m., the doctor requested an APTT test to be done on the same sample. What should the technologist do? a. Rerun APTT on the 8:00 a.m. sample and report result b. Request a new sample for APTT c. Run APTT in duplicate and report the average d. Mix the patient plasma with normal plasma and run the APTT

b. Request a new sample for APTT

A plasma sample submitted to the lab for PT testing has been stored for 25 hours at 4°C. The PT result is shortened. What is the most probable cause? a. Factor VIl deficiency b.Activation of factor VIl due to exposure to cold temperature c. Lupus inhibitor d. Factor X inhibitor

b.Activation of factor VIl due to exposure to cold temperature

Hemophilia A: a. Normal PT, prolonged APTT, normal TCT b. Prolonged PT, normal APTT, normal TCT c. Prolonged PT, prolonged APTT, normal TCT d. Prolonged PT, prolonged APTT, prolonged TCT

a. Normal PT, prolonged APTT, normal TCT

Factor X deficiency: a. Normal PT, prolonged APTT, normal TCT b. Normal PT, prolonged APTT, prolonged TCT c. Prolonged PT, prolonged APTT, normal TCT d. Prolonged PT, prolonged APTT, prolonged TCT

c. Prolonged PT, prolonged APTT, normal TCT

Factor | deficiency: a. Normal PT, prolonged APTT, normal TCT b. Normal PT, prolonged APTT, prolonged TCT ¢. Prolonged PT, prolonged APTT, normal TCT d. Prolonged PT, prolonged APTT, prolonged TCT

d. Prolonged PT, prolonged APTT, prolonged TCT

What is C in VCS technology? a. Coagulation b. Correction ¢. Conductivity d. Chronic

¢. Conductivity

other names parasitology

Yves Laure Pimentel · 70問 · 2年前

other names parasitology