Question 1

Match the mean cell hemoglobin (MCH) red cell test with the appropriate description and reference range.

Accepted Answer

A)  The average weight of hemoglobin in the RBC 
B)  The average weight of hemoglobin compared with the cell size 
C)  The average size of the RBCs 
D)  The average circumference of the RBCs 
E)  Reference range is 32 to 37 g/dL
F) Reference range is 82 to 108 femtoliters (fL)
G) Reference range is 26 to 34 picograms (pg)
H) Reference range is 25 to 37 g/dL 
A)  The average weight of hemoglobin in the RBC 
B)  The average weight of hemoglobin compared with the cell size 
C)  The average size of the RBCs 
D)  The average circumference of the RBCs 
E)  Reference range is 32 to 37 g/dL
F) Reference range is 82 to 108 femtoliters (fL)
G) Reference range is 26 to 34 picograms (pg)
H) Reference range is 25 to 37 g/dL

Question 2

If the Vacutainer is not completely filled with blood, a false ESR reading may result.

Accepted Answer

A) True 
 B)False

Question 3

The cytoplasm of lymphocytes stains purple.

Accepted Answer

A) True 
 B)False

Question 4

Increases in the WBC count that are not related to disease are seen in pregnant women and individuals facing extreme stress.

Accepted Answer

A) True 
 B)False

Question 5

While Mr. Chakrabarti's hematocrit sample is spinning in the centrifuge, you perform an automated hemoglobin test on a sample of his blood and record the value as 15 g/dL. You do a quick mental calculation and expect that the hematocrit value will be approximately

Accepted Answer

A)  5%. 
B)  45 g/dL. 
C)  5 g/dL. 
D)  45%. 
A)  5%. 
B)  45 g/dL. 
C)  5 g/dL. 
D)  45%.

Question 6

Plasma makes up approximately 45% of blood by volume.

Accepted Answer

A) True 
 B)False

Question 7

A hematocrit reading of 37 indicates what?

Accepted Answer

A)  The patient has a hemoglobin level of 12. 
B)  RBCs account for 37% of the total blood volume. 
C)  WBCs account for 37% of the total blood volume. 
D)  RBCs account for 63% of the total blood volume. 
A)  The patient has a hemoglobin level of 12. 
B)  RBCs account for 37% of the total blood volume. 
C)  WBCs account for 37% of the total blood volume. 
D)  RBCs account for 63% of the total blood volume.

Question 8

Hormones detected in a thyroid panel include

Accepted Answer

A)  thyroxine. 
B)  triiodothyronine. 
C)  thyroid-stimulating hormone. 
D)  All of the above 
A)  thyroxine. 
B)  triiodothyronine. 
C)  thyroid-stimulating hormone. 
D)  All of the above

Question 9

Microscopically, which of the following cells have large, dark, blue-black granules and contain histamine?

Accepted Answer

A)  Lymphocytes 
B)  Basophils 
C)  Eosinophils 
D)  Monocytes 
A)  Lymphocytes 
B)  Basophils 
C)  Eosinophils 
D)  Monocytes

Question 10

Troponin is a component of a(n) ________ panel.

Accepted Answer

A)  liver 
B)  renal 
C)  cardiac 
D)  electrolyte 
A)  liver 
B)  renal 
C)  cardiac 
D)  electrolyte

Question 11

Dr. Lim orders a CPK draw on Mr. Roberts. What do elevated CPK levels indicate?

Accepted Answer

A)  Liver disease 
B)  Possible MI 
C)  Dehydration 
D)  A problem with glucose metabolism 
A)  Liver disease 
B)  Possible MI 
C)  Dehydration 
D)  A problem with glucose metabolism

Question 12

Explain the significance of the HbA1c test in the control of diabetes mellitus. Include in your discussion the relationship between A1c and blood glucose levels.

Accepted Answer

RBCs have a life span of approximately 1

Question 13

Hemoglobin A1c determination is more useful than blood glucose measurement in the management of diabetes, because it provides information on the average blood sugar level over a 2- to 3-month period.

Accepted Answer

A) True 
 B)False

Question 14

In performance of a microhematocrit

Accepted Answer

A)  whole coagulated blood must be used. 
B)  the capillary tube must be completely filled and sealed on one end. 
C)  the open end of the capillary tube should be sealed with clay before centrifuging. 
D)  the capillary tubes should be centrifuged in a labeled, sealed Vacutainer tube. 
A)  whole coagulated blood must be used. 
B)  the capillary tube must be completely filled and sealed on one end. 
C)  the open end of the capillary tube should be sealed with clay before centrifuging. 
D)  the capillary tubes should be centrifuged in a labeled, sealed Vacutainer tube.

Question 15

Which of the following is a normal adult WBC count?

Accepted Answer

A)  3,000 cells/mm3 
B)  1,500 cells/mm3 
C)  10,000 cells/mm3 
D)  12,000 cells/mm3 
A)  3,000 cells/mm3 
B)  1,500 cells/mm3 
C)  10,000 cells/mm3 
D)  12,000 cells/mm3

Question 16

Patients with ________________ have an unusually large number of all blood cells.

Accepted Answer

polycythemia vera
Patients wit

Question 17

Which of the following leukocytes are associated with allergies?

Accepted Answer

A)  Eosinophils 
B)  Basophils 
C)  Polymorphonuclear neutrophils 
D)  All of the above 
A)  Eosinophils 
B)  Basophils 
C)  Polymorphonuclear neutrophils 
D)  All of the above

Question 18

You are responsible for teaching a new medical assistant in the practice how to perform a microhematocrit test. Summarize this procedure.

Accepted Answer

Refer to P

Question 19

Which of the following measures the PT according to the time it takes the blood to form a fibrin clot?

Accepted Answer

A)  ESR 
B)  Hgb determination 
C)  CLIA-waived 
D)  CBC 
A)  ESR 
B)  Hgb determination 
C)  CLIA-waived 
D)  CBC

Question 20

An RBC with a normal amount of hemoglobin is said to be hyperchromic.

Accepted Answer

A) True 
 B)False

Exam 47: Assisting in the Analysis of Blood

Match the mean cell hemoglobin (MCH) red cell test with the appropriate description and reference range.

If the Vacutainer is not completely filled with blood, a false ESR reading may result.

The cytoplasm of lymphocytes stains purple.

Increases in the WBC count that are not related to disease are seen in pregnant women and individuals facing extreme stress.

While Mr. Chakrabarti's hematocrit sample is spinning in the centrifuge, you perform an automated hemoglobin test on a sample of his blood and record the value as 15 g/dL. You do a quick mental calculation and expect that the hematocrit value will be approximately

Plasma makes up approximately 45% of blood by volume.

A hematocrit reading of 37 indicates what?

Hormones detected in a thyroid panel include

Microscopically, which of the following cells have large, dark, blue-black granules and contain histamine?

Troponin is a component of a(n) ________ panel.

Dr. Lim orders a CPK draw on Mr. Roberts. What do elevated CPK levels indicate?

Explain the significance of the HbA1c test in the control of diabetes mellitus. Include in your discussion the relationship between A1c and blood glucose levels.

Hemoglobin A1c determination is more useful than blood glucose measurement in the management of diabetes, because it provides information on the average blood sugar level over a 2- to 3-month period.

In performance of a microhematocrit

Which of the following is a normal adult WBC count?

Patients with ________________ have an unusually large number of all blood cells.

Which of the following leukocytes are associated with allergies?

You are responsible for teaching a new medical assistant in the practice how to perform a microhematocrit test. Summarize this procedure.

Which of the following measures the PT according to the time it takes the blood to form a fibrin clot?

An RBC with a normal amount of hemoglobin is said to be hyperchromic.

Competency-Based Education and the Medical Assistant Student

The Medical Assistant and the Healthcare Team

Professional Behavior in the Workplace

Therapeutic Communications

Medicine and Law

Medicine and Ethics

Technology and Written Communication in the Medical Office

Telephone Techniques

Scheduling Appointments and Patient Processing

Daily Operations in the Ambulatory Care Setting

The Health Record

Basics of Diagnostic Coding

Basics of Procedural Coding

Basics of Health Insurance

Medical Billing and Reimbursement

Patient Accounts, Collections, and Practice Management

Banking Services and Procedures

Supervision and Human Resources Management

Medical Practice Marketing and Customer Service

Infection Control

Patient Assessment

Patient Education

Nutrition and Health Promotion

Vital Signs

Assisting with the Primary Physical Examination

Principles of Pharmacology

Pharmacology Math

Administering Medications

Safety and Emergency Practices

Assisting in Ophthalmology and Otolaryngology

Assisting in Dermatology

Assisting in Gastroenterology

Assisting in Urology and Male Reproduction

Assisting in Obstetrics and Gynecology

Assisting in Pediatrics

Assisting in Orthopedic Medicine

Assisting in Neurology and Mental Health

Assisting in Endocrinology

Assisting in Pulmonary Medicine

Assisting in Cardiology

Assisting in Geriatrics

Principles of Electrocardiography

Assisting with Diagnostic Imaging

Assisting in the Clinical Laboratory

Assisting in the Analysis of Urine

Assisting in Blood Collection

Assisting in Microbiology and Immunology

Surgical Supplies and Instruments

Surgical Asepsis and Assisting with Surgical Procedures

Career Development and Life Skills

Filters

Explain the significance of the HbA₁c test in the control of diabetes mellitus. Include in your discussion the relationship between A₁c and blood glucose levels.

Hemoglobin A₁c determination is more useful than blood glucose measurement in the management of diabetes, because it provides information on the average blood sugar level over a 2- to 3-month period.