HEMATOLOGY

31問 • 2年前

問題一覧

The bevel should be faced ____ when performing venipuncture - Sideways - Upward - Downward - In any direction, as long as there is backflow

Upward

What is the preferred angle in preparing blood smear - 15-30 - 20-30 - 30-45 - 35-50

30-45

Upon examining the blood film, the medtech noticed that there are more cells per field at the feathered edge compared to the monolayer area. This indicates: - A.The smear is perfectly made - B.The smear is unacceptable - C.A snow plow effect has occured - D.Both B and C

D.Both B and C

Primary source of EPO in the fetus - Liver - Spleen - Kidney - Lungs

Liver

Short draw in an evacuated tube causes the hematocrit reading to be - Erratic - Decreased - Increased - Inconsistent

Decreased

Primary substrate of thrombin - Prothrombin - Fibrinogen - Factor V - Factor XII

Fibrinogen

Child or adult with friable veins ] - 20 gauge - 21 gauge - 22 gauge - 23 gauge

23 gauge

Chloromas are associated with - FAB M1 - FAB M2 - FAB M3 - FAB M4

FAB M1

WHO classification - 20% - 30%

20%

Causative agent of Infectious Mononucleosis - Monocytes - Histiocytes - T lymphocytes - B lymphocytes

B lymphocytes

Smudge cells are found in: - ALL - AML - CLL - APL

CLL

FAB requires a minimum of ____ blasts for diagnosis of AML. - 10% - 20% - 30% - 40%

30%

The following cytokines are used for stem cell mobilization except - G-CSF - GM-CSF - IFN-alpha - IL 3

IFN-alpha

Not a finding for Megaloblastic Anemia - Increase Reticulocyte count - Pancytopenia - LD 1 > LD 2 - Increased B1

Increase Reticulocyte count

Alpha granules of the platelet si located at - Sol Gel Zone - Organelle Zone - Mitochondria - Peripheral Zone

Organelle Zone

Quantitative test for Factor XIII deficiency - Uses 5M Urea - Based on ammonia measurement - Detects IgG4 class immunoglobulins - Utilizes bovine thrombin

Based on ammonia measurement

Which of the following produces abnormal PT results - Royal Dse - Hemophila B - DIC - Marfan's Syndrome

DIC

Compare the volume of plasma to serum obtained from a given volume of whole blood - Plasma greater volume than serum - Plasma lesser volume than serum - Same volume - Variable

Plasma greater volume than serum

EDTA is used in concentrations of ___ mg/1 mL of whole blood. - 0.5 mg/1 mL of whole blood - 2.0 mg/1 mL of whole blood - 1.5 mg/1 mL of whole blood - 2.5 mg/1 mL of whole blood

1.5 mg/1 mL of whole blood

A 7.0 mL EDTA tube is received in the laboratory containing only 2.0 mL of blood. If the laboratory is using manual techniques, which of the following tests will most likely be erroneous? - RBC count - WBC count - Hematocrit - Hemoglobin

Hematocrit

EDTA-induced pseudothrombocytopenia can be identified on blood smear by: - Bluish discoloration to the macroscopic appearance of the slide - Finding no platelets at all on the smear - Finding platelets pushed to the feathered end - Finding platelets adhering to WBCs

Finding platelets adhering to WBCs

The automated platelet count on an EDTA specimen is 58 x 10 9th/L. The platelet estimate on the blood smear appears normal, but it was noted that the platelets were surrounding the neutrophils. The next step should be to - Recollect a specimen for a platelet count using a different anticoagulant - Rerun the original specimen since the platelet count and blood smear estimate do not match - Warm the EDTA tube and repeat the automated platelet count - Report the automated platelet count since it is more accurate than a platelet estimate

Recollect a specimen for a platelet count using a different anticoagulant

Which results would be expected for the PT and APTT in a patient with polycythemia? - Both prolonged - Both shortened - Both normal - Normal PT, prolonged APTT

Both prolonged

It is caused by leakage of a SMALL AMOUNT OF BLOOD in the tissue around the puncture site: - Ecchymosis (bruise) - Hematoma - Hemoconcentration - Anemia

Ecchymosis (bruise)

Leakage of a LARGE AMOUNT OF BLOOD around the puncture site causes the area to rapidly swell: - Ecchymosis (bruise) - Hematoma - Hemoconcentration - Anemia

Hematoma

Lipemia can cause turbidity in the cyanmethemoglobin method, falsely high hemoglobin result. It can be corrected by: - Reagent-sample solution can be centrifuged and the supernatant - Adding 0.01 mL of the patient's plasma to 5 mL of the - Making a 1:2 dilution with distilled water (1 part diluted sample plus 1 - Cannot be corrected

Adding 0.01 mL of the patient's plasma to 5 mL of the

Most common complication encountered in obtaining a blood specimen - Ecchymosis (bruise) - Hematoma - Hemoconcentration - Anemia

Ecchymosis (bruise)

In ENTERIC ISOLATION, the technologist is required to wear - Mask - Gown and gloves - Gown, mask and gloves - Gown, mask, gloves and shoe coverings

Gown and gloves

Reverse isolation may be used for: - A patient with the measles - A patient with tuberculosis - A patient with severe burns - An adult patient with the flu

A patient with severe burns

In disseminated intravascular coagulation (DIC) and immune thrombocytopenic purpura (ITP): - There is decreased production of platelets - There is increased destruction of platelets - There is a defect of platelet membrane - There is defect of platelet release reaction

There is increased destruction of platelets

If an average of 10 platelets are seen per oil immersion field, what is the estimated platelet count? - 200 x 10 9th/L - 150 x 10 9th/L - 200 x 10 9th/L - 300 x 10 9th/L

200 x 10 9th/L

other names parasitology

Yves Laure Pimentel · 70問 · 2年前

other names parasitology