Question 1

Even though all of the following factors contribute to laboratory safety, the most crucial factor for consistently preventing harm to one's self is:
A) engineering controls.
B) gloving.
C) worker commitment to safety.
D) safety education.

Accepted Answer

While all of the factors listed contribute to laboratory safety, worker commitment to safety is the most crucial factor in consistently preventing harm to one's self. This means that workers must prioritize safety, follow safety protocols and procedures, and be alert and aware of potential hazards in the laboratory. Without a strong commitment to safety from all workers, engineering controls, gloving, and safety education may not be enough to prevent accidents and injuries.

Question 2

Which of the following statements is true regarding the two government agencies (CDC and OSHA) and their effect on medical laboratory safety?
A) OSHA enforces the Bloodborne Pathogen Standard and Hazard Communication standard.
B) OSHA recommends Standard Precautions for infection control.
C) CDC enforces the Hazard Communication standard.
D) CDC recommends Standard Precautions for infection control.
E) Both a and d are true statements.

Accepted Answer

OSHA enforces the Bloodborne Pathogen Standard and Hazard Communication standard, while CDC recommends Standard Precautions for infection control. Therefore, both options a and d are true statements.

Question 3

The substance being tested in a specimen, such as glucose or cholesterol in a blood specimen, is a(n) ____________________.

Accepted Answer

analyte

Question 4

Which of the following are not required on a laboratory requisition?
A) Type of specimen (e.g., blood, urine, swab, etc.)
B) Laboratory test results
C) Time and date of collection of the specimen
D) Physician's name and address
E) Patient's gender, age, and insurance company

Accepted Answer

Laboratory test results are not required on a laboratory requisition, as the purpose of the requisition is to request the laboratory tests to be performed. The test results will be provided on a separate report. All of the other options listed are required on a laboratory requisition.

Question 5

Tests that provide simple, unvarying results and require minimal judgment and interpretation are ____________________ tests.

Accepted Answer

The answer of Tests that provide simple, unvarying results and...

Question 6

A steady state of internal chemical and physical balance is referred to as _______________.

Accepted Answer

The answer of A steady state of internal chemical and...

Question 7

Which laboratory department tests the cellular components of blood (e.g., complete blood count [CBC])?
A) Chemistry department
B) Serology/immunology department
C) Hematology department
D) Toxicology department

Accepted Answer

Hematology department tests the cellular components of blood, which includes a complete blood count (CBC) test. The other options (chemistry, serology/immunology, and toxicology departments) do not typically perform CBC tests.

Question 8

The colors orange and red are identified as biohazardous, along with which of the following?
A) A splatter shield
B) Written advisories
C) A designated area of the lab
D) A biohazard symbol

Accepted Answer

The biohazard symbol is an internationally recognized symbol for biohazards, and it is commonly used to identify biohazardous materials, so option D is the best choice. While options A, B, and C can also be used to identify biohazards, they are not specific to biohazardous materials and can be used for other safety purposes in the lab.

Question 9

Diluted bleach for disinfecting work surfaces, equipment, and spills should be prepared by making a ____ dilution of household bleach to water.
A) 1:5
B) 1:10
C) 1:20
D) 1:50

Accepted Answer

A 1:10 dilution of household bleach to water is commonly recommended for disinfecting surfaces, equipment, and cleaning up spills, as it provides an effective concentration for killing bacteria and viruses while being safe for most uses.

Question 10

An outpatient health care setting in which patients are not bedridden is a(n) _____________.

Accepted Answer

The answer of An outpatient health care setting in which...

Question 11

Which of the following is an example of using a laboratory test to monitor treatment?
A) A CBC is performed to confirm the possible diagnosis of anemia.
B) A patient receives a blood cholesterol screening test during an annual physical exam.
C) A diabetic patient tests personal blood glucose daily to determine how much insulin is needed to regulate sugar levels.
D) A gonorrhea culture is collected from a pregnant woman as required by state law.

Accepted Answer

Daily monitoring of blood glucose levels is a common practice for diabetic patients to determine and adjust insulin therapy.

Question 12

HBV and HIV may be directly transmitted in the occupational setting by:
A) accidental puncture with infected needle or other sharps.
B) contamination of skin that has abrasions or open lesions.
C) splashing of blood into the eye.
D) all of the above.

Accepted Answer

All of the above options are potential modes of direct transmission of HBV and HIV in the occupational setting. Accidental puncture with an infected needle or other sharps is a well-known high-risk mode of transmission. Contamination of skin with abrasions or open lesions can also lead to infection. Finally, splashing of blood into the eye can result in transmission of these viruses. It is important for healthcare workers to take proper precautions to reduce the risk of these types of occupational exposures.

Question 13

The clotting ability of blood is called ____________________.

Accepted Answer

The answer of The clotting ability of blood is called...

Question 14

Which of the following metric units is a measurement of volume?
A) Centigrade (°C)
B) Milliliter (mL)
C) Microgram (mcg)
D) Millimeter (mm)

Accepted Answer

Milliliter (mL) is the unit used for measuring volume, while Centigrade (°C) is used for measuring temperature, Microgram (mcg) is used for measuring mass or weight, and Millimeter (mm) is used for measuring length or distance.

Question 15

Exposure to ____ constitutes the major source of human immunodeficiency virus (HIV) and hepatitis B virus (HBV) infection in health care professionals.
A) blood
B) urine
C) semen
D) bloody fluids

Accepted Answer

Blood is the major source of HIV and HBV infection in health care professionals due to potential exposure to bloodborne pathogens during procedures such as blood draws, injections, and surgical interventions. Urine and semen are not typically sources of HIV and HBV transmission. "Bloody fluids" is not a clear or specific term and could potentially refer to a variety of bodily fluids that may or may not be sources of infection.

Question 16

The physician uses which of the following to make a diagnosis?
A) Diagnostic tests
B) Physical examination
C) Laboratory tests
D) Health history
E) All of the above

Accepted Answer

A physician uses a combination of all the options listed (diagnostic tests, physical examination, laboratory tests, and health history) to make a diagnosis. None of these options alone is sufficient to make a diagnosis in most cases.

Question 17

What is a laboratory test panel or profile?
A) A series of tests associated with a particular organ, disease, or general assessment of a patient's health status done on the same specimen
B) A group of individuals who perform laboratory tests
C) A laboratory test that is required by federal law
D) A single test ordered for a specific disease

Accepted Answer

A laboratory test panel or profile is a series of tests associated with a particular organ, disease, or general assessment of a patient's health status, all of which are done on the same specimen. This allows for more comprehensive analysis and evaluation of a patient's health.

Question 18

A patient who is in homeostasis will produce laboratory test results that:
A) are invalid.
B) reveal the existence of an imbalance in the body.
C) are above normal.
D) fall within the normal reference range.

Accepted Answer

Laboratory test results of a patient who is in homeostasis fall within the normal reference range, indicating that their body is functioning properly and maintaining a stable internal environment.

Question 19

The metric prefix that means one-thousandth,1/1000, or 0.001 is:
A) kilo-.
B) centi-.
C) milli-.
D) micro-.

Accepted Answer

The metric prefix that means one-thousandth is milli-. This is because "milli-" represents the multiplier of 0.001. In contrast, kilo- represents a multiplier of 1000, centi- represents a multiplier of 0.01 and micro- represents a multiplier of 0.000001.

Question 20

Laboratory orders indicating what tests are to be performed are called _________________.

Accepted Answer

The answer of Laboratory orders indicating what tests are to...

Quiz 1: Introduction to the Laboratory and Safety Training

Even though all of the following factors contribute to laboratory safety, the most crucial factor for consistently preventing harm to one's self is:

Which of the following statements is true regarding the two government agencies (CDC and OSHA) and their effect on medical laboratory safety?

The substance being tested in a specimen, such as glucose or cholesterol in a blood specimen, is a(n) ____________________.

Which of the following are not required on a laboratory requisition?

Tests that provide simple, unvarying results and require minimal judgment and interpretation are ____________________ tests.

A steady state of internal chemical and physical balance is referred to as _______________.

Which laboratory department tests the cellular components of blood (e.g., complete blood count [CBC]) ?

The colors orange and red are identified as biohazardous, along with which of the following?

Diluted bleach for disinfecting work surfaces, equipment, and spills should be prepared by making a ____ dilution of household bleach to water.

An outpatient health care setting in which patients are not bedridden is a(n) _____________.

Which of the following is an example of using a laboratory test to monitor treatment?

HBV and HIV may be directly transmitted in the occupational setting by:

The clotting ability of blood is called ____________________.

Which of the following metric units is a measurement of volume?

Exposure to ____ constitutes the major source of human immunodeficiency virus (HIV) and hepatitis B virus (HBV) infection in health care professionals.

The physician uses which of the following to make a diagnosis?

What is a laboratory test panel or profile?

A patient who is in homeostasis will produce laboratory test results that:

The metric prefix that means one-thousandth,1/1000, or 0.001 is:

Laboratory orders indicating what tests are to be performed are called _________________.