LAB 5 BLOOD CELLS AND BLOOD
TYPING EXAM QUESTIONS AND
ANSWERS GRADED A+ 2025/2026
What does whole blood consist of? - ANS 55% plasma and 45 % formed elements.
What are the three classes of formed elements - ANS erythrocytes, platelets, leukocytes
Erythrocytes - ANS red blood cells, carry oxygen
Hemoglobin - ANS An iron-containing protein in red blood cells that reversibly binds oxygen.
Hematocrit - ANS percentage of blood volume occupied by red blood cells
Enzyme carbonic anhydrase - ANS 𝐶𝑂2+𝐻2𝑂 ⇌ 𝐻2𝐶𝑂3 ⇌ 𝐻+ +𝐻𝐶𝑂3−
Platelets - ANS blood clotting and make up less than 1% of the total blood volume
Leukocytes - ANS white blood cells, fight infection
normal hematocrit - ANS 45%
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, Anemia - ANS 30%
Polycthemia - ANS 70%
Dehydration - ANS 70% hematocrit
average hematocrit for males - ANS 40-50%
average hematocrits for females - ANS 36-44%
What type of antigens does type A blood have? - ANS A antigens
What type of antigens does type B blood have? - ANS B antigens
What type of antigens does type AB blood have? - ANS A and B antigens
What type of antigens does type O blood have? - ANS neither A or B antigens
how do you know if a blood type is positive? - ANS Has a Rh antigen
how do you know if a blood type is negative? - ANS Has no Rh antigen
What happens if you lack the Rh antigen at your first exposure to it. - ANS You only produce
Rh antibodies if you are exposed to the Rh antigen
What will happen to the exposure to the Rh antigen with someone with who is Rh negative -
ANS Rh antigen will trigger a cross-reaction between your antibodies and the antigen
2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
TYPING EXAM QUESTIONS AND
ANSWERS GRADED A+ 2025/2026
What does whole blood consist of? - ANS 55% plasma and 45 % formed elements.
What are the three classes of formed elements - ANS erythrocytes, platelets, leukocytes
Erythrocytes - ANS red blood cells, carry oxygen
Hemoglobin - ANS An iron-containing protein in red blood cells that reversibly binds oxygen.
Hematocrit - ANS percentage of blood volume occupied by red blood cells
Enzyme carbonic anhydrase - ANS 𝐶𝑂2+𝐻2𝑂 ⇌ 𝐻2𝐶𝑂3 ⇌ 𝐻+ +𝐻𝐶𝑂3−
Platelets - ANS blood clotting and make up less than 1% of the total blood volume
Leukocytes - ANS white blood cells, fight infection
normal hematocrit - ANS 45%
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
, Anemia - ANS 30%
Polycthemia - ANS 70%
Dehydration - ANS 70% hematocrit
average hematocrit for males - ANS 40-50%
average hematocrits for females - ANS 36-44%
What type of antigens does type A blood have? - ANS A antigens
What type of antigens does type B blood have? - ANS B antigens
What type of antigens does type AB blood have? - ANS A and B antigens
What type of antigens does type O blood have? - ANS neither A or B antigens
how do you know if a blood type is positive? - ANS Has a Rh antigen
how do you know if a blood type is negative? - ANS Has no Rh antigen
What happens if you lack the Rh antigen at your first exposure to it. - ANS You only produce
Rh antibodies if you are exposed to the Rh antigen
What will happen to the exposure to the Rh antigen with someone with who is Rh negative -
ANS Rh antigen will trigger a cross-reaction between your antibodies and the antigen
2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
