Week 1 Canvas Hematology Questions

Standard precautions involve

A) Behavior that prevents contact with terminally ill patients.

B) Behavior that prevents contact with virally infected patients

C) Behavior that prevents direct contact with bodily fluids or contaminated surfaces

D) Behavior that prevents contact with pediatric patients

C) Behavior that prevents direct contact with bodily fluids or contaminated surfaces

Which one of the following is considered personal protective equipment?

A) Head nets

B) Laboratory coats

C) Operating room attire

D) White shoes

B) Laboratory coats

What types of samples are used primarily in the clinical laboratory?

A) Blood and bodily fluids

B) Bone

C) Skin

D) Solid organs

A) Blood and bodily fluids

Which part(s) on the microscope is (are) used for focusing?

A) Coarse and fine adjustments

B) Oculars

C) Diaphragm

D) Stage

A) Coarse and fine adjustments

Which one of the following is a postanalytic factor?

A) Tube checked for clots

B) Calling results when a critical value is obtained

C) checking Id of patient before drawing

D) Sample mixing

B) Calling results when a critical value is obtained

The proper definition for a standard is

A) Solutions with a known amount of the analyte.

B) A target range

C) Materials used to calibrate a method

D) A normal distribution curve

A) Solutions with a known amount of the analyte.

Which of the following is the definition of a reference interval?

A) Validation techniques on flagged samples

B) A solution of a known amount of analyte

C) Materials analyzed concurrently with unknown samples

D) Values established for a particular analyte, given a method, instrument, or patient population

D) Values established for a particular analyte, given a method, instrument, or patient population

Which of the following is NOT considered a postanalytic variable?

A) Delta checks

B) Specimen check for clots

C) Proper anticoagulant used

D) Critical results called

C) Proper anticoagulant used

Error analysis, standard protocols, and turnaround time all are part of the

A) Reference standards

B) Quality control program.

C) Quality assurance system

D) Delta check protocol.

C) Quality assurance system

Biologic hazards include all but one of the following:

A) hair

B) urine

C) blood

D) body fluids

A) hair

The lower the ________, the more precise the data

A) CV

B) Reliability

C) SD

D) Accuracy

A) CV

_________ variables lead to inaccurate analyte readings

A) Post analytic

B) Preanalytic

B) Preanalytic

__________ variables lead to poor patient care

A)Preanalytic

B)Postanalytic

B)Postanalytic

What are the organs of hematopoiesis in fetal life?

Spleen and liver

How does the bone marrow respond to anemic stress

Production is expanded and red blood cells are released to the circulation prematurely

Which chemical substances are responsible for differentiation and replication of the pluripotent stem cell?

Cytokines

A hormone released from the kidney that is unique for erythroid regeneration is

Erythropoietin

Which organs are involved in the extramedullary hematopoiesis?

Liver and spleen

What is the most stable parameter of the CBC?

MCV

Which of the following values is a critical value?

A. WBC of 5,000

B. Hgb of 12

C. Hct of 36

D. Platelet count of 10,000

D. Platelet count of 10,000

The M:E ratio describes:

The amount of myeloid elements in relation to erythroid elements in the marrow

What test is most effective means of assessing red blood cell generation in response to anemia

Reticulocyte count