ISBB Flashcards

1
Q

Most potent phagocytic cell, most effective at antigen presentation

A

DENDRITIC CELLS

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2
Q

Person submitting urine for drug test

A

DONOR /CLIENT

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3
Q

Major advantage of gel technology

A

STANDARDIZATION

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4
Q

Connection between two blood vessels:

A

ANASTOMOSIS

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5
Q

hallmark rash of measles infection; bluish white spots with a red halo located on the buccal or labial mucosa

A

KOPLIK’S SPOTS (IN MEASLES)

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6
Q

Anti-smooth muscle antibodies (ASMA)

A

CHRONIC ACTIVE HEPATITIS

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7
Q

Anti-mitochondrial antibodies (AMA)

A

PRIMARY BILIARY CIRRHOSIS

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8
Q

Antigenic determinant

A

EPITOPE

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9
Q

Part of the antibody that binds to the antigen

A

PARATOPE

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10
Q

measures total IgE

A

RADIOIMMUNOSORBENT TEST (RIST)

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11
Q

measures allergen-specific IgE

A

RADIOALLERGOSORBENT TEST (RAST)

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12
Q

most common congenital immunodeficiency

A

SELECTIVE IgA DEFICIENCY

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13
Q

• Chickenpox and shingles
• Vaccine important in controlling outbreaks
• Tzanck stain: Giant cells

A

Varicella-Zoster Virus

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14
Q

• Isolated from blood, urine, throat
• In adults: Syndrome similar to mononucleosis, may infect kidney (shed in urine)
• In immunocompromised: Kidney, eye, lung, often fatal

A

Cytomegalovirus

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15
Q

• Heterophile-positive mononucleosis (85%)
• Can produce tumors
• Not isolated in culture

Serologic diagnosis
• Early antigen
• Viral capsid antigen: IgM and IgG
• Nuclear antigen

A

Epstein-Barr Virus

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16
Q

• Human parvovirus B-19 - infectiosum (fifth disease)erythema
• Infects bone marrow cells (erythrocyte) -Causes aplastic crisis

A

Parvoviruses

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17
Q

• Rare acquired disorder resulting from stem cell mutation in the PIGA gene
• Cells lack glycoslyphosphatidlyinositol anchored proteins, including CD55 and CD59
• RBCs are susceptible to complement lysis, because CD55 and CD59 inhibit complement and are absent, cells may lyse spontaneously

A

Paroxysmal Nocturnal Hemoglobinuria

18
Q

COMPLEMENT COMPONENT _____ is the CENTRAL CONVERGENCE POINT for all complement activation pathways.

19
Q

may be stable in dried blood and blood products at 25°C for up to 7 days.

20
Q

may be stable in dried blood and blood products at 25°C for up to 7 days.

21
Q

retains infectivity for more than 3 days in dried specimens at room temperature and for more than 1 week in an aqueous environment at room temperature.

22
Q

Two main functions of the serologic crossmatch test can be cited:

A
  1. It is a final check of ABO compatibility between donor and patient.2. It may detect the presence of an antibody in the patient’s serum that will react with antigens on the donor RBCs but that was not detected in antibody screening because the corresponding antigen was lacking from the screening cells.
23
Q

SEQUENCE that UNIQUE AMINO ACID is common to all immunoglobulin molecules of a given class in a given species

24
Q

: minor variation of sequences that are present in some individuals but not others

25
variable portions of each chain unique to a specific antibody molecule
IDIOTYPE '' Idiot si Var''
26
only blood group system that affects clinical transplantation
ABO
27
REVIEWED AT LEAST ANNUALLY and updated on a regular basis to reflect changes in operations and implementation of new regulations.
BLOOD BANK STANDARD OPERATING PROCEDURES (SOP)
28
Marker for HSC cells:
CD 34
29
• Most SERIOUS of the complement deficiencies • Associated with severe and recurrent infections, glomerulonephritis
C3 DEFICIENCY
30
• Most COMMON of the complement deficiencies • Associated with autoimmune diseases (LE-like), atherosclerosis
C2 DEFICIENCY
31
Anaphylaxis, hay fever, asthma, food allergy
TYPE I HYPERSENSITIVITY (ANAPHYLACTIC):
32
Transfusion reactions, HDN, thrombocytopenia Graves dse, Goodpasture, Myasthenia gravis
TYPE II HYPERSENSITIVITY (CYTOTOXIC)
33
Arthus reaction, serum sickness
TYPE III HYPERSENSITIVITY (IMMUNE COMPLEX)
34
Contact dermatitis, tuberculin test ex. Mantoux
TYPE IV HYPERSENSITIVITY (DELAYED OR CELL-MEDIATED)
35
predominantly polymorphonuclear (neutrophils)
ACUTE INFLAMMATION
36
predominantly mononuclear cell infiltration (macrophages, lymphocytes and plasma cells)
CHRONIC INFLAMMATION:
37
PATTERNS OF COMMON LABORATORY TESTS FOR HEPATITIS 1. SUSCEPTIBLE
• HBsAg negative • Anti-HBc negative Anti-HBs negative
38
• HBsAg negative • Anti-HBc positive* • Anti-HBs positive*
IMMUNE DUE TO NATURAL INFECTION
39
• HBsAg negative • Anti-HBc negative • Anti-HBs positive*
IMMUNE DUE TO HEPATITIS B VACCINE
40
• HBsAg positive* • Anti-HBc positive* • Anti-HBc IgM positive* • Anti-HBs negative
ACUTELY INFECTED
41
Anti-HBs is not produced during chronic HBV infection, in which immunity fails to develop. • HBsAg positive* • Anti-HBc positive* • Anti-HBc IgM negative • Anti-HBs negative
CHRONICALLY INFECTED (Larson)
42
• HBsAg negative • Anti-HBc positive* • Anti-HBs negative
Four possibilities: (1) resolved infection (most common), (2) false positive anti-HBc thus susceptible, (3) low-level chronic infection, and (4) resolving acute infection