ASCP MEDICAL LABORATORY TECHNICIAN - MLT(ASCP) ASCP-MLT Prüfungsfragen mit Lösungen:
1. The Western Blot Assay is used as a confirmatory test for which of the following:
A) Anti-HIV-1
B) Anti-HCV
C) CMV Antibody
D) HBsAg
2. The parents will each give one of their ABO genes, so the possibilities are as follows:
AB, AO, AB, AO = 50% chance of A blood type, 50% chance of AB blood type Blood Bank If parents have the blood group genotypes AA and BO, what is the possibility of having a child with a blood type of A?
A) 50%
B) none of them
C) 25%
D) 75%
E) 100%
3. A positive DAT is consistent with a diagnosis of hemolytic disease of the newborn. A hemoglobin performed on the cord blood serves as an indicator of the severity of the disease.
In order to detect the presence of antibodies fixed on the RBC's of newborns one should:
A) Look for agglutination in a mixture of mother's serum and baby's cells
B) Perform an indirect antiglobulin test (IAT) on the cord blood
C) Test the baby's cells with typing antiserum
D) Perform a direct antiglobulin test (DAT) on the cord blood
4. 1. B
2. C
3. A
Granular casts are composed of plasma protein aggregates and cellular remnants. Granular casts appear as cylinders of coarse, or fine, highly refractive particles.
Broad casts or "renal failure' casts are formed in the collecting ducts as the result of urinary stasis and are two to six times the size of other types of casts. Any type of cast can be a broad cast. Broad casts are typically seen in patients with advanced renal failure.
Hyaline casts, the type most commonly seen in urine sediment, have a refractive index similar to the urine in which they are suspended. For this reason, hyaline casts will appear almost invisible under brightfield microscopy, but are easily of seen by phase-contrast microscopy.
Match the following descriptions of casts with their appropriate name:
1. Casts with highly refractive particles
2. "Renal failure" cast
3. Low refractive index
A) Broad
B) Granular Casts
C) Hyaline casts
5. This antibody is found in the serum of Le(a-b-) secretors.
Which one of these Lewis blood group system phenotypes usually produces anti-Lea?
A) Le(a+b+)
B) Le(a--b+)
C) Le(a--b-)
D) Le(a+b-)
Fragen und Antworten:
| 1. Frage Antwort: B | 2. Frage Antwort: A | 3. Frage Antwort: D | 4. Frage Antwort: A,B,C | 5. Frage Antwort: C |
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