Blood Analysis Essay

Exercise 11: Blood Analysis: Activity 4: Blood Typing Lab Report Pre-lab Quiz Results You scored 75% by answering 3 out of 4 questions correctly - Blood Analysis Essay introduction. 1. Red blood cell membranes have You correctly answered: c. agglutinogens that specify that individual’s blood type. 2. ABO and Rh antigens You correctly answered: d. All of these answers are correct. 3. Which of the following statements about blood types is correct? You correctly answered: d. A person with type O blood has two recessive alleles and has neither the type A nor type B antigen.

Antibodies to the A and B antigens are Your answer : c. present on red blood cell membranes. Correct answer: a. found preformed in the blood plasma. 03/07/13 page 1 Experiment Results Predict Question: Predict Question: If the patient’s blood type is AB- , what would be the appearance of the A, B, and Rh samples? Your answer : c. A, unclumped; B, unclumped; C, clumped Stop & Think Questions: Why are individuals with the AB+ blood type known as universal recipients for blood transfusions? You correctly answered: c.

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They have both A and B antigens on the surface of their RBCs, and their blood serum does not contain antibodies against A, B, or Rh antigens. Experiment Data: Blood sample 1 2 3 4 5 6 Agglutination with Anti-A Serum positive negative positive negative positive negative Agglutination with Anti-B Serum negative positive positive negative positive positive Agglutination with Anti-Rh Serum positive positive negative negative positive negative Blood Type BA+ ABBAB+ A- 03/07/13 page 2 Post-lab Quiz Results You scored 50% by answering 2 out of 4 questions correctly. 1.To determine an individual’s blood type, drops of the blood sample are mixed You correctly answered:

a. separately with antiserum containing antibodies that recognize either type A antigens, type B antigens, or Rh antigens. 2. Agglutination You correctly answered: d. All of these answers are correct. 3. Antigens Your answer: c. are specific to red blood cells. Correct answer: b. are present on all cells. 4. ABO and Rh agglutinogens Your answer: b. are present in 90% of the population. Correct answer: c. cause the most vigorous and potentially fatal transfusion reactions. 3/07/13 page 3 Review Sheet Results 1. How did the appearance of the A, B, and Rh samples for the patient with AB- blood type compare with your prediction?

You did not answer this question. 2. Which blood sample contained the rarest blood type? You did not answer this question. 3. Which blood sample contained the universal donor? You did not answer this question. 4. Which blood sample contained the universal recipient? You did not answer this question. 5. Which blood sample did not agglutinate with any of the antibodies tested? Why? You did not answer this question. . What antibodies would be found in the plasma of blood sample 1? You did not answer this question. 7. When transfusing an individual with blood that is compatible but not the same type, it is important to separate packed cells from the plasma and administer only the packed cells. Why do you think this is done? (Hint: think about what is in plasma versus what is on RBCs. ) You did not answer this question. 8. List the blood samples in this activity that represent people who could donate blood to a person with type B+ blood. You did not answer this question.

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