Quiz on Hematology Anticoagulants and Blood Cell Identification

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Which coagulation factor is activated by COLD temperature?

Factor VIII

Factor IV

Factor VII

Factor XI (correct)

Which drug will NOT cause an INCREASE in ESR (Erythrocyte Sedimentation Rate)?

Cortisone

Theophylline

Penicillamine (correct)

Procainamide

What is the average LIFESPAN of platelets?

10-14 days (correct)

20-25 days

5-7 days

15-20 days

Which hemoglobin type is present in the MESOBLASTIC PHASE?

Hb F Signup and view all the answers

What is used to reduce the RISK of capillary tube injuries according to the National Institute for Occupational Safety and Health?

Mylar-wrapped tubes Signup and view all the answers

Which of the following describes REPRODUCIBILITY?

Precision Signup and view all the answers

What guidelines must be followed in treating blood and considering all specimens infectious for bloodborne pathogens?

Standard precautions Signup and view all the answers

In a normal functioning bone marrow, what is the RPI index?

3 Signup and view all the answers

In cyanmethemoglobin measurement, which wavelength is directly proportional to hemoglobin concentration?

540 Signup and view all the answers

What characterizes thrombosthemia?

Gp IIb-IIIa Signup and view all the answers

What formula is used to calculate manual WBC count?

Average total leukocytes counted x dilution factor Signup and view all the answers

Which of the following fragments is NOT produced by the digestion of either fibrin or fibrinogen by plasmin?

Fragment Y Signup and view all the answers

Which of the following clotting factors is NOT exclusively synthesized in the liver?

Factor V Signup and view all the answers

In cases of liver failure, which clotting factors would be most affected?

Factors II, VII, IX, and X Signup and view all the answers

What is the process known as 'CULLING' in relation to RBCs?

Removal of surface membrane from circulating RBCs by splenic macrophages Signup and view all the answers

Which coagulation factor is abnormal in deficiency if both PT and APTT are prolonged?

Factor XII Signup and view all the answers

Where are most coagulation factors synthesized?

Liver Signup and view all the answers

What is the storage site of von Willebrand factor (vWF)?

Both A and B Signup and view all the answers

In platelet storage pool defects, which aspect of platelets is affected?

Platelet Granules Signup and view all the answers

If platelet clumps are observed in peripheral blood smear (PBS), what action can be taken?

Perform Platelet Function Assay Signup and view all the answers

In the case of a 5-year-old boy with hepatic and renal failure, which factor deficiency is indicated by an elevated APTT and PT?

Factor 2, 7, 9, 10 Signup and view all the answers

Which cell found in the nuclear remnant of lymphocytes during blood film preparation resembles a thumbprint?

Smudge Cells Signup and view all the answers

What factor is NOT associated with variations in the total white blood cell (WBC) count?

Factor XIII Signup and view all the answers

Which factor is critical for normal platelet adhesion?

Glycoprotein Ib Signup and view all the answers

What is the anticoagulant that contains 0.109 M Na citrate?

3.2% Na citrate Signup and view all the answers

Which of the following is known as the Owl's Eye Appearance?

REED STERNBERG CELL Signup and view all the answers

What is another name for a Band cell?

a and b Signup and view all the answers

What is the reading wavelength for Siemens Advia 2120?

546nm Signup and view all the answers

What is the type of smear used for malarial parasite identification?

Both thin and thick smears Signup and view all the answers

Which factor affects platelet adhesion?

Aspirin intake Signup and view all the answers