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WorksheetsMed Lab Semester Exam
Total questions: 83
Worksheet time: 1hrs 2mins
The lymph nodes and spleen are parts of the secondary lymphoid system.
True
False
The formation of an insoluble antigen-antibody complex is called precipitation.
False
True
Any leukocyte can produce monoclonal antibodies.
True
False
Humoral immunity is brought about primarily by:
T cells
Lymphokines
Antibodies
All of the above
None of the above
The antibody class that is predominant in secretions is:
IgG
IgM
IgD
IgA
IgE
The class of antibody produced first after exposure to antigen is:
IgG
IgM
IgA
IgE
IgE
Specific immunity is characterized by all of the following EXCEPT:
Specificity
Inflammation
Recognition
Memory
Which of the following is NOT considered secondary lymphoid tissue?
Lymph nodes
Spleen
Thymus
Tonsils
All of the following are characteristics of the inflammatory response EXCEPT:
Phagocytic action of the neutrophils
Redness, swelling, pain, and heat
Complement proteins
Antibody production
The cells that are destroyed in HIV infection are:
Monocytes
CD4+ cells
CD8+ cells
B lymphocytes
The largest immunoglobulin is:
IgG
IgM
IgA
IgE
IgD
The reaction that occurs when soluble antigen is reacted with specific antibody is:
agglutination
diffusion
fixation
precipitation
none of the above
The antibody class that is in highest concentration in serum is
(a)
Cell-mediated immunity is brought about _ lymphocytes.
(a)
Hypersensitivity or allergy response are associated with _.
(a)
A foreign substance that induces an immune response by causing antibody production in a(n) _.
(a)
A hypersensitive condition is more commonly called a(n) _.
(a)
An individual who is able to produce a normal immune response is said to be _.
(a)
An individual who has reduced ability to produce an immune response is said to be _.
(a)
The portion of an antigen that reacts specifically with an antibody is the _.
(a)
An assay that uses an enzyme-labeled antibody as a reactant is a(n) _.
(a)
Immunity provided primary by cytokines and lymphocytes is called _ immunity.
(a)
Clumping of particles
(a)
Produced from the T cells
(a)
Bone marrow
(a)
Insoluble antigen-antibody complex
(a)
Produced from multiple plasma cell lines
(a)
Uses enzyme-labeled antibody
(a)
Lymph nodes and spleen
(a)
Attachment of the early embryo to the uterus is called an ectopic pregnancy.
True
False
HCG is produced by the placenta shortly after implantation.
True
False
Testing urine for pregnancy is one of the oldest tests, and it was mentioned in Egypt more than 3,000 year ago.
True
False
Results of the positive home pregnancy tests should be confirmed by a physical examination.
True
False
Serum hCG tests are CLIA waived.
True
False
Since rapid hCG tests contain internal controls, it is not necessary to run external controls.
True
False
The use of Standard Precautions is not required when handling urine specimens.
True
False
A false positive hCG test can be seen in all of the following conditions EXCEPT:
Choriocarcinoma
2 weeks after full-term delivery
Testicular tumors
Ovarian tumors
Which of the following is no longer a common hCG test method?
RIA
Urine dipstick
EIA
Agglutination inhibition
Which of the following could be the reason for a negative urine hCG test result when a patient is 2 weeks pregnant?
Urine contains glucose
Urine is positive for protein
Urine specific gravity is 1.028
Urine is too dilute
The term used for substances that are capable of causing birth defects is:
Ectopic
Gonadotropic
Teratogenic
Trophoblastic
None of the above
All of the following are components of hCG quality assessment program EXCEPT:
Discard the kit after the expiration date
Discard used kit materials into a biohazard container
Do not test urine with a kit designed for serum
Store and use the kit according to the manufacturer's directions.
Do not interchange reagents with other kits
A urine "dipstick" test for hCG is available and is CLIA waived if read using a(n) _.
(a)
After performing a urine hCG test, all used kit materials must be discarded into a(n) _.
(a)
Because it has the highest hCG concentration, the preferred urine specimen is the first urine voided in the _.
(a)
If urine cannot be tested immediately for hCG, it can be stored for _ to hours.
(a)
The results of the hCG tests should be reported following the policy of the institution, but the usual method is to report the test as negative or positive for hCG, not for _.
(a)
The "hormone of pregnancy" is _.
(a)
Standard Precautions must be following in hospital blood banks, but are not required at donor centers.
True
False
It is not possible to use disposable supplies in blood banking.
True
False
Documentation of the working condition of temperature chambers such as refrigerators and water baths is a critical component of QA in the blood bank.
True
False
A blood transfusion is a transplant.
True
False
Although transfusion of incompatible blood can cause adverse reactions, it cannot be a cause of death.
True
False
One form of "artificial blood" that has been used in humans and animals is cell-free hemoglobin.
True
False
The testing of patient blood with potential donor blood is called compatibility testing or crossmatching.
True
False
Concentrates containing coagulation factors, such as factor VIII, acn be prepared from donated blood.
True
False
Tests of donor blood for evidence of hepatitis B include testing both for anti-hepatitis B antibodies as well as for hepatitis B viral antigen.
True
False
Donor blood is routinely tested for the presence of Ebola virus.
True
False
Which is true concerning the history of transfusion medicine?
James Blundell preformed the first recorded successful blood transfusion of human blood
Karl Landsteiner discovered the ABO group in 1930
The first hospital blood bank was in San Francisco
The discovery of BSE in the 1980s dramatically changed blood donor policy
The operation of blood banks is ultimately regulated by the:
American Association of Blood Banks (AABB)
U.S Food and Drug Administration (FDA)
Centers for Disease and Prevention (CDC)
All of the above
Typical testing preformed in immunohematology laboratories includes all of the following EXCEPT:
Routine blood typing
Evaluation of suitable blood donors
Providing compatible blood for transfusion
Hemoglobin and hematocrit
Which of the following is a reason to defer a prospective blood donor?
Age < 16
Weight 120lbs
Temperature 37 degrees Celsius
Blood pressure 140/90
Hemoglobin 12 g/dL
Which of the following has NOT been shown to be able to be transmitted by blood transfusion?
Malaria
Hyperglycemia
Hepatitis B infection
Chagas' disease
HIV infection
Concerning blood donation:
Donor must wait a minimum of 8 months between blood donations
The normal adult circulation contains about 10 pints (4 or 5 liters) of blood
The puncture site is cleaned with alcohol before venipuncture
Blood is collected into a sterile bag containing EDTA
Approximately 1 liter of blood is obtained from each blood donor
As of June 2010, donating blood is tested for evidence of several infectious disease. Which of the following are included in the testing?
HIV, HTLV, and Hep B
HIV, Hep B, and chlamydia
Syphilis, West Nile virus, and HIV
Hep A, Hep B, and Hep C
Strep, Hep A, and HIV
The components of easily obtaining from 1 unit of donated blood include all of the following EXCEPT:
RBC
Platelet concentrate
Leukocyte concentrate
Fresh frozen plasma
In blood banking:
ABO is the major blood group
Artificial blood is now in common use
Rh is only one minor importance
Most blood bank reagents come from nonhuman sources
The process of removing a specific blood component and returning the remaining blood to the circulation is _.
(a)
The common anticoagulant used in blood donor units is:
(a)
All of the following is true of blood vessels EXCEPT:
Arteries are thick-walled, the strongest type of blood vessel
Veins carry deoxygenated blood
There are about 10000 miles of blood vessels in an adult
Capillaries are the smallest blood vessels
In cardiopulmonary circulation:
Blood is carried from the heart to the tissues
Blood circulates from the heart to the lungs to the tissues
Blood circulates from the heart to the lungs where 02 is picked up by the blood and CO2 is released; the blood then goes back to the heart and is pumped to the tissues to deliver O2
Blood is carried from the heart to the tissue and back to the heart, providing O2 to the tissues
"Thick-walled, elastic, and muscular" describes which type of blood vessel?
(a)
In the packed cell column after centrifugation of blood, the leukocytes are at the bottom of the column.
True
False
The microhematocrit centrifuge separates the blood into 3 layers: RBCs, WBCs, and thrombocytes.
True
False
Microhematocrit capillary tubes are lined with heparin to keep the blood from clotting.
True
False
Hemoglobin carries both oxygen and carbon dioxide.
True
False
While counting leukocytes with a hemacytometer, counting only the cells that touch the right and bottom line of the primary square.
True
False
RBC counts are usually done under the low-power objective of the microscope
True
False
Which of the indices were outside of the normal range for your patient?
MCV
MCH
MCHC
MCV & MCH
MCH & MCHC
When you view the cells under the microscope, they will appear
microcytic & hypochromic
macrocytic & hyperchromic
normocytic & normochromic
What do you predict is causing the patient's
Vitamin B12 deficiency
Iron deficiency
Acute blood less
Chronic blood loss
An average value for a microhematocrit on a male adult is _.
25-35%
30-40%
35-45%
40-55%
The blood cells with a normal count of 5,000 to 10,000 cells per cubic millimeter of blood are _.
erythrocytes
leukocytes
thrombocytes
platelets
A low white blood cell count indicates _.
Anemia
Leukopenia
Leukocytosis
Ploycythemia
