Medical Assistant Lab Procedures Exam Study
Guide 2026 PDF for Healthcare Students and
Medical Assistants | Specimen Collection,
Urinalysis, Hematology, Microbiology, Point-of-Care
Testing, Safety Protocols, and Clinical Skills |
Comprehensive Lab Procedures Exam Preparation
to Strengthen Accuracy, Clinical Competence, and
Certification Readiness
, 1. What is the primary purpose of a complete blood count (CBC)?
• A) To determine the blood type
• B) To evaluate overall health and detect a variety of disorders
• C) To check for diabetes
• D) To measure electrolyte levels
Correct Option: B
Rationale: A complete blood count (CBC) provides crucial information about the
cellular components of blood, including red blood cells, white blood cells, and
platelets. It helps in diagnosing conditions such as anemia, infections, and various
blood disorders, thus giving an overall picture of a patient’s health.
2. Which of the following tubes is typically used for collecting blood for a glucose
test?
• A) Red-top tube
• B) Grey-top tube
• C) Green-top tube
• D) Blue-top tube
Correct Option: B
Rationale: The grey-top tube contains sodium fluoride, which is an antiglycolytic agent
that prevents the breakdown of glucose. This is essential for accurately measuring
blood glucose levels without interference from metabolic processes post-collection.
3. What is the main function of the Hemosiderin test?
• A) To assess liver function
• B) To evaluate kidney function
• C) To determine iron storage levels
• D) To diagnose infections
Correct Option: C
Rationale: The Hemosiderin test evaluates the amount of stored iron in the body. High
levels of hemosiderin can indicate conditions such as hemochromatosis, which is an
iron overload disorder, while low levels can suggest iron deficiency.
4. How should a medical assistant prepare a patient for a cholesterol test?
Guide 2026 PDF for Healthcare Students and
Medical Assistants | Specimen Collection,
Urinalysis, Hematology, Microbiology, Point-of-Care
Testing, Safety Protocols, and Clinical Skills |
Comprehensive Lab Procedures Exam Preparation
to Strengthen Accuracy, Clinical Competence, and
Certification Readiness
, 1. What is the primary purpose of a complete blood count (CBC)?
• A) To determine the blood type
• B) To evaluate overall health and detect a variety of disorders
• C) To check for diabetes
• D) To measure electrolyte levels
Correct Option: B
Rationale: A complete blood count (CBC) provides crucial information about the
cellular components of blood, including red blood cells, white blood cells, and
platelets. It helps in diagnosing conditions such as anemia, infections, and various
blood disorders, thus giving an overall picture of a patient’s health.
2. Which of the following tubes is typically used for collecting blood for a glucose
test?
• A) Red-top tube
• B) Grey-top tube
• C) Green-top tube
• D) Blue-top tube
Correct Option: B
Rationale: The grey-top tube contains sodium fluoride, which is an antiglycolytic agent
that prevents the breakdown of glucose. This is essential for accurately measuring
blood glucose levels without interference from metabolic processes post-collection.
3. What is the main function of the Hemosiderin test?
• A) To assess liver function
• B) To evaluate kidney function
• C) To determine iron storage levels
• D) To diagnose infections
Correct Option: C
Rationale: The Hemosiderin test evaluates the amount of stored iron in the body. High
levels of hemosiderin can indicate conditions such as hemochromatosis, which is an
iron overload disorder, while low levels can suggest iron deficiency.
4. How should a medical assistant prepare a patient for a cholesterol test?
