FREE NURSING AND STUDY GAMES ABOUT BLOOD EXAM

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FREE NURSING AND STUDY GAMES ABOUT BLOOD EXAM

QUESTIONS

Actual Qs and Ans Expert-Verified Explanation

This Exam contains:

-Guarantee passing score -27 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation

Question 1: Which of the following statements is true concerning human blood?

a)The blood of all normal humans contains red and white cells, platelets, & plasma b)Some human populations normally lack the ability to produce plasma

Answer:

A--> There are no populational or regional differences. All healthy people produce these 4 main blood components.

Question 2: Which of the following statements is true of the Rh blood system?

a)It was the first blood type system to be discovered b)It is more complex genetically than the ABO system c)There are 45 Rh blood types d)b and c

Answer:

B --> The Rh system apparently is much more complex genetically since it involves 45 different antigens on the surface of red cells that are controlled by 2 closely linked genes on chromosome

• In most cases, the ABO system is controlled by only 2 antig

Question 3: When blood clumps or forms visible islands in the still liquid plasma, it is called: a)clotting b)agglutination c)none of the above

Answer:

B --> Agglutination is the result of red cells being stuck together by antibodies attaching on to antigens on the alien red cells. Within the body, this recognition-rejection process results in the bursting of alien red cells rather than agglutination.Question 4: Mother-fetus incompatibility problems result from: a)mother's antibodies agglutinating the fetus' Rh positive red blood cells b)fetus' antibodies agglutinating its own red blood cells c)fetus' antibodies agglutinating its mother's RBC

Answer:

A --> As a result of fetal blood entering the mother`s system during her first pregnancy with an Rh positive baby, she will regularly produce antibodies to Rh antigens. They will pass through the placental barrier into her fetus and agglutinate its blood Question 5: Which of the following are likely to increase in quantities when the body is under attack from bacteria?a)erythrocytes b)leukocytes c)thrombocytes

Answer:

B --> In response to such an attack, the leukocytes, or white cells, normally appear at the site of infections in increasing numbers. They attack the invading bacteria and ultimately get rid of them if they are successful.Question 6: Which of the following blood components provide the major defense for our bodies against invading bacteria and viruses?a)red cells b)white cells c)platelet

Answer:

B --> There are numerous types of white cells, many of which function to seek out and destroy alien microbes in our bodies. Some other types of white cells have the function of getting rid of old unneeded blood cells.

Question 7: Erythrocyte is another name for

a)red cell b)white cell c)platelet

Answer:

B --> Erythrocyte literally means red cell in Greek.Question 8: In the ABO blood system, you normally can be type: a)A b)B c)ABO d)A, B, AB, or O

Answer:

D --> You can be type A, B, AB, or O but not ABO.Question 9: Which of the following would be least likely to be accepted as legal proof of paternity?a)ABO blood type evidence b)HLA type evidence c)DNA sequence evidence d)all are equally likely to be accepted

Answer:

A --> Because of the Bombay Phenotype and other possible exceptions, the ABO blood type system is not conclusive in determining whether or not someone could be a parent of a particular child. The other two kinds of evidence are much more reliable.Question 10: Which of the ff. statements is true of antigen-antibody interactions?a)Used only to identify blood types b)Used to identify & reject micro-organisms from our body c)They are the way our blood clots when we are bleeding from open wound

Answer:

B --> Microorganisms carry foreign antigens on their surfaces which stimulate the production of white cell antibodies that attack the antigens as a way of getting rid of the invading parasites and subsequently develop an immunity to future attacks.Question 11: Which of the ff: is true of Rh +?a)They are either homozygous dominant (DD) or heterozygous (Dd) for this trait b)They are all homozygous dominant (DD) c)They are all homozygous recessive (dd) d)Their homozygous recessive(dd)or heterozygous

Answer:

A --> The Rh blood factor is a dominant trait. Therefore, both DD and Dd people have the Rh antigen on the surface of their red cells which makes them Rh positive.Question 12: Which of the ff: is true about the ABO blood system?a)It was discovered in the 1950's b)It was discovered by Karl Landsteiner c)Few people are actually typed for this system d)a and b

Answer:

B --> Karl Landsteiner discovered the ABO system in 1900 and 1901 while trying to understand why blood transfusions sometimes saved lives and at other times caused death.Question 13: In determining the phenotype for the ABO blood system: a)O is dominant over A b)B is dominant over A c)O is recessive d)all of the above

Answer:

C --> The rules of dominance for the ABO system are that A and B are both dominant over O (i.e., O is recessive) and A and B are codominant.Question 14: If one of your parents is blood type A and the other is type B, which of the following blood types would you likely be?a)A b)B c)O d)AB e)any of the above

Answer:

E --> Since you could inherit A or O alleles from one parent and B or O alleles from the other, you could be any of the 4 ABO types. Look at the other answers to see how this could be true.Question 15: The greatest medical problem with the Rh blood group is: a)transfusion incompatibility b)chronic anemia for Rh negative individuals c)chronic anemia for Rh positive individuals d)none of the above

Answer:

D --> The most life threatening problem is the result of an Rh blood type incompatibility between a mother and her developing fetus.