PCAB-AMO TEST LATEST PRACTICE
EXAMINATION 2026 QUESTIONS WITH
ANSWERS GRADED A+
• c. Increased affinity of hemoglobin for oxygen, less oxygen is released to
the.
Answer: Lower levels of 2,3-DPG in the red cells result in: a. Increased
affinity of hemoglobin for oxygen, more oxygen is released to the tissues. b.
Decreased affinity of hemoglobin for oxygen, less oxygen is released to the
tissues. c. Increased affinity of hemoglobin for oxygen, less oxygen is
released to the tissues. d. No change in the affinity of hemoglobin for
oxygen unless the temperature also changes.
• In a Levey-Jennings chart where the SD of control is plotted relative to a
Gaussian distribution, the Mean, 1 SD, 2 SD, 3 SD corresponds to(match
columns); a. 1 SD d. 95.5% b. 2 SD e. 99.7% c. 3 SD f. 68.3%.
Answer: a. 1 SD f. 68.3% b. 2 SD d. 95.5% c. 3 SD e. 99.7%
• How frequent are employee performance evaluation performed?.
Answer: Annually
• c. Increased Hb F in maternal cells.
Answer: Interpret the following findings: Flow cytometry: negative Rossette
Test: negative Kleihauer Betke: Positive a. Superior sensitivity of
Kleihauer-Betke to detect D b. False positive Kleihaurer-Betke test c.
Increased Hb F in maternal cells
• Quality Control; True or False Controls and calibration material directly
assess the accuracy and precision of the test.
Answer: FALSE Controls and calibration material INDIRECTLY asses the
accuracy and precision of the test
• d. Bacterial contamination.
Answer: The most common serious immediate adverse effects of blood
, transfusion is: a. Urticaria b. Hemolytic transfusion reaction c. Hepatitis d.
Bacterial contamination
• c. Hook effect.
Answer: The amount of the antigen being measured that is exceeding the
amount of antibody in enzymelinked immunosorbent assay can cause a
technical problem called: a. Apotosis b. Dilutional effect c. Hook effect d.
Prozone
• d. O (Typr O has least vWF).
Answer: Three donors were tested for von Willebrand factor and were found
to have the following levels: 160, 120, and 50. What is the most likely blood
type of the donor with the von Willebrand factor level of 50? a. A b. B C.
AB d. O
• c. Infection is clear.
Answer: The following hepatitis B testing results indicates:
HBsAG=Non-reactive, Anti-HBc=Reactive, Anti-HBs=Reactive, HBV
DNA=Non-reactive a. Acute infection b. Chronic infection c. Infection is
clear d. Recurring infection e. The person has received hepatitis B
vaccination
• C. McCc.
Answer: Which antigen is located on the CR1 protein? a. Cra b. Kpc c.
McCc d. Erc
• Quality Control; The term that refers to the interval , period of time or series
of measurements within which the accuracy and precision of the measuring
system remains stable.
Answer: Run or analytical run
• What are the regulated temperature parameters for temperature-regulated
equipment ? (i) Heat blocks and water bath (ii) Room temperature (iii)
Refrigerator general lab (iv) Refrigerator blood bank lab (v) Freezer general
lab (vi) Freezer blood bank lab.
Answer: (i) Heat blocks and water bath: 36°C to 38°C (ii) Room
, temperature: 20°C to 24°C (iii) Refrigerator general lab: 2°C to 8°C (iv)
Refrigerator blood bank lab: 1°C to 6°C (v) Freezer general lab: ≤-18°C (vi)
Freezer blood bank lab: ≤-65°C
• True or False Proficiency testing analyze samples of known concentrations.
Answer: False. PT analyze samples of unknown concentrations that are later
send to the PT-provider for comparison of result. PT results should be
submitted in a timely manner
• b. The HSCT patient may have decreased relapse of malignant disease..
Answer: A hematopoietic stem cell transplant (HSCT) patient developed
graft-versus-host disease. How is the GVHD in this patient different from a
patient who developed GVHD from routine blood transfusion? a. There is
no difference. b. The HSCT patient may have decreased relapse of
malignant disease. c. The HSCT patient will have pancytopenia with a near
100% mortality. d. The HSCT patient will have only skin involvement with
a mortality rate.
• What is taken into account during employee performance evaluation?.
Answer: Technical skill Attitude Belief Knowledge
• d. Linkage disequilibrium.
Answer: HLA-A 1 and HLA-88 are found more frequently than expected.
This is known as:: a. Genetic drift b. Recombination c. Non-disjunction d.
Linkage disequilibrium
• Beer's Law formulas (3).
Answer: A=abc -same as→ Absorbance=εbC where ε is the extinction
coefficient, b is the path length (usually 1cm) and C the concentration
A=2-log%T C₁A₁=C₂A₂
• b. Ser-Ser-Thr-Thr-Gly.
Answer: The amino acid sequence responsible for the M antigen is: a.
Leu-Ser-Thr-Thr-Glu b. Ser-Ser-Thr-Thr-Gly c. Leu-Ser-Ser-Thr-Glu d.
Thr-Ser-Thr-Leu-Gly
• Organize the following terms 1.Standard Deviation(SD) a.Middle value
EXAMINATION 2026 QUESTIONS WITH
ANSWERS GRADED A+
• c. Increased affinity of hemoglobin for oxygen, less oxygen is released to
the.
Answer: Lower levels of 2,3-DPG in the red cells result in: a. Increased
affinity of hemoglobin for oxygen, more oxygen is released to the tissues. b.
Decreased affinity of hemoglobin for oxygen, less oxygen is released to the
tissues. c. Increased affinity of hemoglobin for oxygen, less oxygen is
released to the tissues. d. No change in the affinity of hemoglobin for
oxygen unless the temperature also changes.
• In a Levey-Jennings chart where the SD of control is plotted relative to a
Gaussian distribution, the Mean, 1 SD, 2 SD, 3 SD corresponds to(match
columns); a. 1 SD d. 95.5% b. 2 SD e. 99.7% c. 3 SD f. 68.3%.
Answer: a. 1 SD f. 68.3% b. 2 SD d. 95.5% c. 3 SD e. 99.7%
• How frequent are employee performance evaluation performed?.
Answer: Annually
• c. Increased Hb F in maternal cells.
Answer: Interpret the following findings: Flow cytometry: negative Rossette
Test: negative Kleihauer Betke: Positive a. Superior sensitivity of
Kleihauer-Betke to detect D b. False positive Kleihaurer-Betke test c.
Increased Hb F in maternal cells
• Quality Control; True or False Controls and calibration material directly
assess the accuracy and precision of the test.
Answer: FALSE Controls and calibration material INDIRECTLY asses the
accuracy and precision of the test
• d. Bacterial contamination.
Answer: The most common serious immediate adverse effects of blood
, transfusion is: a. Urticaria b. Hemolytic transfusion reaction c. Hepatitis d.
Bacterial contamination
• c. Hook effect.
Answer: The amount of the antigen being measured that is exceeding the
amount of antibody in enzymelinked immunosorbent assay can cause a
technical problem called: a. Apotosis b. Dilutional effect c. Hook effect d.
Prozone
• d. O (Typr O has least vWF).
Answer: Three donors were tested for von Willebrand factor and were found
to have the following levels: 160, 120, and 50. What is the most likely blood
type of the donor with the von Willebrand factor level of 50? a. A b. B C.
AB d. O
• c. Infection is clear.
Answer: The following hepatitis B testing results indicates:
HBsAG=Non-reactive, Anti-HBc=Reactive, Anti-HBs=Reactive, HBV
DNA=Non-reactive a. Acute infection b. Chronic infection c. Infection is
clear d. Recurring infection e. The person has received hepatitis B
vaccination
• C. McCc.
Answer: Which antigen is located on the CR1 protein? a. Cra b. Kpc c.
McCc d. Erc
• Quality Control; The term that refers to the interval , period of time or series
of measurements within which the accuracy and precision of the measuring
system remains stable.
Answer: Run or analytical run
• What are the regulated temperature parameters for temperature-regulated
equipment ? (i) Heat blocks and water bath (ii) Room temperature (iii)
Refrigerator general lab (iv) Refrigerator blood bank lab (v) Freezer general
lab (vi) Freezer blood bank lab.
Answer: (i) Heat blocks and water bath: 36°C to 38°C (ii) Room
, temperature: 20°C to 24°C (iii) Refrigerator general lab: 2°C to 8°C (iv)
Refrigerator blood bank lab: 1°C to 6°C (v) Freezer general lab: ≤-18°C (vi)
Freezer blood bank lab: ≤-65°C
• True or False Proficiency testing analyze samples of known concentrations.
Answer: False. PT analyze samples of unknown concentrations that are later
send to the PT-provider for comparison of result. PT results should be
submitted in a timely manner
• b. The HSCT patient may have decreased relapse of malignant disease..
Answer: A hematopoietic stem cell transplant (HSCT) patient developed
graft-versus-host disease. How is the GVHD in this patient different from a
patient who developed GVHD from routine blood transfusion? a. There is
no difference. b. The HSCT patient may have decreased relapse of
malignant disease. c. The HSCT patient will have pancytopenia with a near
100% mortality. d. The HSCT patient will have only skin involvement with
a mortality rate.
• What is taken into account during employee performance evaluation?.
Answer: Technical skill Attitude Belief Knowledge
• d. Linkage disequilibrium.
Answer: HLA-A 1 and HLA-88 are found more frequently than expected.
This is known as:: a. Genetic drift b. Recombination c. Non-disjunction d.
Linkage disequilibrium
• Beer's Law formulas (3).
Answer: A=abc -same as→ Absorbance=εbC where ε is the extinction
coefficient, b is the path length (usually 1cm) and C the concentration
A=2-log%T C₁A₁=C₂A₂
• b. Ser-Ser-Thr-Thr-Gly.
Answer: The amino acid sequence responsible for the M antigen is: a.
Leu-Ser-Thr-Thr-Glu b. Ser-Ser-Thr-Thr-Gly c. Leu-Ser-Ser-Thr-Glu d.
Thr-Ser-Thr-Leu-Gly
• Organize the following terms 1.Standard Deviation(SD) a.Middle value
