Laboratory Glasswares Quiz

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Questions and Answers

What is the advantage of the conical shape of the graduated centrifuge tube?

It prevents the red cells from settling out at the bottom.

It allows better measurement of the packed cell volume. (correct)

It makes it easier to aspirate serum from blood.

It facilitates the delivery of drops of serum during testing.

Which glassware is most suitable for measuring less than 1 mL of serum and reagents?

Automatic pipette

Graduated centrifuge tube

Serologic pipette (correct)

Plain test tubes

What is the main purpose of a pasteur pipette?

To remove the supernatant from packed cells (correct)

To measure designated volumes of liquids

To prepare red cell suspension

To deliver drops of serum during testing

Which glassware is used to measure serum extracted from blood?

Pasteur pipette Signup and view all the answers

What is the function of an automatic pipette?

To measure serum and reagents in microliter volumes Signup and view all the answers

Which glassware is generally used as containers of specimens and mixtures of samples and reagents during testing?

Plain test tubes Signup and view all the answers

What is the primary purpose of the evacuated tube system with color coded rubber stoppers?

To allow for multiple blood draws in one collection Signup and view all the answers

In venous blood collection for Blood Banking tests, which capacity of syringe is commonly used?

3 mL Signup and view all the answers

What is the function of an evacuated tube with a Lavender top?

It contains an anticoagulant to prevent blood from clotting Signup and view all the answers

What is the purpose of using a plain glass slide in venous blood collection?

To observe agglutination reaction under the microscope Signup and view all the answers

What is the primary function of a clinical centrifuge in the Blood Bank laboratory?

To separate red blood cells from plasma Signup and view all the answers

What is the specific purpose of a water bath in the context of blood banking tests?

To provide optimal temperature for antigen-antibody reaction Signup and view all the answers

Which piece of equipment is specifically used to visualize antigen-antibody reactions for more accurate interpretation of results?

Compound microscope Signup and view all the answers

What is the difference between a household refrigerator and a blood bank refrigerator in the context of Blood Banking tests?

Capacity for storing blood and red cell components Signup and view all the answers

In the context of Blood Banking tests, what is the primary function of a clinical sterilizer?

To dry and sterilize glassware with high-temperature of dry heat Signup and view all the answers

What is the main purpose of using a compound microscope in Blood Banking tests?

To visualize antigen-antibody reactions for more accurate interpretation of results Signup and view all the answers

Which equipment is specifically used to extract the serum from clotted blood in the Blood Bank laboratory?

(Clinical) Centrifuge Signup and view all the answers

What is the primary specimen collected in blood banking?

Whole blood Signup and view all the answers

What is the role of red cell suspension in blood banking testing procedures?

To identify blood group antigens of the patient Signup and view all the answers

What is the most common cause of disaster in blood transfusion according to the text?

Clerical error Signup and view all the answers

When should a freshly drawn sample be required before transfusion of type-specific products?

When there are any questions concerning proper identification of a specimen or patient Signup and view all the answers

What is the function of indicator cells in the laboratory procedures mentioned in the text?

To display antigen and antibody reactions in vitro Signup and view all the answers

What percentage of red cell suspensions are universally employed as indicator cells for displaying antigen-antibody reactions?

5% Signup and view all the answers

Why should mislabeled, incompletely labeled, and unlabeled specimens not be processed for transfusion?

They affect the accuracy of testing and reliability of results Signup and view all the answers

What kind of sample is required if antibodies are subject for study in blood banking?

Serum Signup and view all the answers

What is critical for safe transfusion according to the text?

Proper identification of specimen and patient Signup and view all the answers

Study Notes

Centrifuge Tubes

Conical shape of graduated centrifuge tubes provides a pointed tip that allows for easy mixing and minimal sample loss.

Measuring Serum and Reagents

Micropipettes are the most suitable glassware for measuring less than 1 mL of serum and reagents.

Pipettes

The main purpose of a pasteur pipette is to accurately measure and transfer small volumes of liquids.
An automatic pipette is used to accurately measure and dispense precise volumes of liquids.

Serum Collection

Serum separator tubes are used to measure serum extracted from blood.

Containers and Specimens

Glassware, such as test tubes, are generally used as containers for specimens and mixtures of samples and reagents during testing.

Evacuated Tube System

The primary purpose of the evacuated tube system with color-coded rubber stoppers is to collect and store blood samples.

Syringes and Blood Collection

In venous blood collection for Blood Banking tests, a 10 mL syringe is commonly used.

Evacuated Tubes

An evacuated tube with a Lavender top is used to collect blood samples for hematology and clinical chemistry tests.

Glass Slides

Plain glass slides are used in venous blood collection to prepare blood smears.

Clinical Centrifuge

The primary function of a clinical centrifuge in the Blood Bank laboratory is to separate blood components and prepare samples for testing.

Water Bath

The primary purpose of a water bath in the context of blood banking tests is to incubate and process blood samples at a controlled temperature.

Agglutination

A test tube rack is specifically used to visualize antigen-antibody reactions for more accurate interpretation of results.

Refrigeration

A blood bank refrigerator is specifically designed to store and preserve blood components at a controlled temperature, unlike a household refrigerator.

Sterilization

The primary function of a clinical sterilizer in the context of Blood Banking tests is to sterilize equipment and materials.

Microscopy

A compound microscope is used in Blood Banking tests to examine blood cells and detect abnormalities.

Serum Extraction

A centrifuge is specifically used to extract the serum from clotted blood in the Blood Bank laboratory.

Specimen Collection

Whole blood is the primary specimen collected in blood banking.

Red Cell Suspension

Red cell suspension plays a critical role in blood banking testing procedures as it is used to detect antigen-antibody reactions.

Blood Transfusion Risks

The most common cause of disaster in blood transfusion is ABO incompatibility.

Pre-Transfusion Testing

A freshly drawn sample should be required before transfusion of type-specific products.

Indicator Cells

Indicator cells are used in laboratory procedures to detect and display antigen-antibody reactions.
0.8% of red cell suspensions are universally employed as indicator cells for displaying antigen-antibody reactions.

Specimen Labeling

Mislabeled, incompletely labeled, and unlabeled specimens should not be processed for transfusion to prevent errors and contamination.

Sample Requirements

A serum sample is required if antibodies are subject for study in blood banking.

Safe Transfusion

Proper identification and labeling of blood components are critical for safe transfusion.

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Description

Test your knowledge of laboratory glassware with this quiz. Learn about the uses and sizes of plain test tubes, as well as the advantages of graduated centrifuge tubes in laboratory procedures.