2265- PRACTICAL EXAM 1 QUIZZES
WITH ANSWERS | LATEST UPDATE .
Calculate the % of Hb Saturation, if absorbance of fully oxygenated blood is 0.2, absorbance
after partial deoxygenation is 0.39, and absorbance after final deoxygenation is 0.69 - Correct
Answer -A = Absorbance after complete deoxygenation
B = Absorbance after each deoxygenation step
C = Absorbance before deoxygenation
% Saturation = (A-B)/(A-C) x 100%
=61.22
In the frog heart experiment, what would be the effect of application of atropine in heart
muscle physiology? - Correct Answer -Increase in heart rate
Which of the following would increase affinity of hemoglobin to the oxygen? - Correct
Answer -Low temperature
Which blood disease has a low hematocrit? - Correct Answer -Leukemia
Figure A represents ECG at rest, while Figure B shows ECG after exercise. What is the
parameter that is significantly different between two conditions? - Correct Answer -Heart rate
A patient with blood Type A received Blood type AB during transfusion. Agglutination
occurred as a results of binding of: - Correct Answer -Anti-B antibody from a host blood with
antigen B in a donor blood.
At which cell is the arrow pointing to? - Correct Answer -Neutrophil
What is the amplitude of the T wave in the rectangle? - Correct Answer -0.1 mV
1
, Direct ELISA showed a negative result. What may be reason for that result? - Correct
Answer -Both B and C
Answers:
A- Antibody against antigen used to coat wells is not present in the sample
B- Antigen specific for the antibody used to coat wells is not present in the sample
C- Inadequate enzyme substrate failed to produce a color reaction
Identify lymphoid organ in image - Correct Answer -Spleen
Which of the following blood diseases can be recognized by reactive lymphocytes
characterized by bright blue cytoplasm and "skirting" of red blood cells? - Correct Answer -
Infectious mononucleosis
Identify the cell at the arrow. - Correct Answer -Monocyte
Which leukocyte type is the most abundant in the blood? - Correct Answer -Neutrophil
What blood disorder is demonstrated in this blood smear. - Correct Answer -Sickle cell
anemia
What is the blood type of the sample shown here. - Correct Answer -A+
A high hematocrit value could be indicative of which of the following pathologies? - Correct
Answer -Polycythemia
An athlete had high hematocrit and hemoglobin levels when tested. However, his levels
dropped very fast. What might be the explaination for this? - Correct Answer -Removal of
blood and replacement with packed erythrocytes, and then drinking lots of fluids
Calculate the hematocrit in a microhematocrit tube if:
2
WITH ANSWERS | LATEST UPDATE .
Calculate the % of Hb Saturation, if absorbance of fully oxygenated blood is 0.2, absorbance
after partial deoxygenation is 0.39, and absorbance after final deoxygenation is 0.69 - Correct
Answer -A = Absorbance after complete deoxygenation
B = Absorbance after each deoxygenation step
C = Absorbance before deoxygenation
% Saturation = (A-B)/(A-C) x 100%
=61.22
In the frog heart experiment, what would be the effect of application of atropine in heart
muscle physiology? - Correct Answer -Increase in heart rate
Which of the following would increase affinity of hemoglobin to the oxygen? - Correct
Answer -Low temperature
Which blood disease has a low hematocrit? - Correct Answer -Leukemia
Figure A represents ECG at rest, while Figure B shows ECG after exercise. What is the
parameter that is significantly different between two conditions? - Correct Answer -Heart rate
A patient with blood Type A received Blood type AB during transfusion. Agglutination
occurred as a results of binding of: - Correct Answer -Anti-B antibody from a host blood with
antigen B in a donor blood.
At which cell is the arrow pointing to? - Correct Answer -Neutrophil
What is the amplitude of the T wave in the rectangle? - Correct Answer -0.1 mV
1
, Direct ELISA showed a negative result. What may be reason for that result? - Correct
Answer -Both B and C
Answers:
A- Antibody against antigen used to coat wells is not present in the sample
B- Antigen specific for the antibody used to coat wells is not present in the sample
C- Inadequate enzyme substrate failed to produce a color reaction
Identify lymphoid organ in image - Correct Answer -Spleen
Which of the following blood diseases can be recognized by reactive lymphocytes
characterized by bright blue cytoplasm and "skirting" of red blood cells? - Correct Answer -
Infectious mononucleosis
Identify the cell at the arrow. - Correct Answer -Monocyte
Which leukocyte type is the most abundant in the blood? - Correct Answer -Neutrophil
What blood disorder is demonstrated in this blood smear. - Correct Answer -Sickle cell
anemia
What is the blood type of the sample shown here. - Correct Answer -A+
A high hematocrit value could be indicative of which of the following pathologies? - Correct
Answer -Polycythemia
An athlete had high hematocrit and hemoglobin levels when tested. However, his levels
dropped very fast. What might be the explaination for this? - Correct Answer -Removal of
blood and replacement with packed erythrocytes, and then drinking lots of fluids
Calculate the hematocrit in a microhematocrit tube if:
2
