A person with which of the following blood groups can receive blood from a donor of only his/her own blood group?
1. O | 2. A |
3. B | 4. AB |
Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R):
Assertion (A): | When the ventricles are in systole, the atria are in diastole. |
Reason (R): | All four chambers of the heart can never be in systole or diastole together. |
In the light of the above statements choose the correct answer from the options given below:
1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
3. | (A) is true but (R) is false. |
4. | Both (A) and (R) are false. |
Which one of the following is a matching pair?
1. Lubb-sharp closure of AV valves at the beginning of ventricular systole
2. Dup-Sudden opening of semilunar valves at the beginning of ventricular diastole
3. Pulsation of the radial artery-valves in the blood vessels
4. Initiation of the heart beat - Purkinje fibers
In which one of the following pairs the two items mean one and the same thing?
1. Malleus - anvil
2. SA node - pacemaker
3. Leucocytes - lymphocytes
4. Haemophilia - blood cancer
An Rh + woman is pregnant with an Rh- fetus. The consequences can be:
1. | There is usually no risk during the first pregnancy, but it can harm the fetus during a subsequent pregnancy if the mother is not treated. |
2. | It always poses a serious risk to the fetus, even in the first pregnancy. |
3. | Only in rare cases is there a risk to the fetus during the first pregnancy. |
4. | There is no risk to the fetus when a woman who is Rh+ carries an Rh- fetus. |
Identify the group in which the formed elements of the human blood are arranged in order of increasing size:
1. red blood cell, neutrophil, platelet
2. platelet, red blood cell, neutrophil
3. neutrophil, platelet, red blood cell
4. platelet, neutrophil, red blood cell
A deficiency of plasma proteins would lead to all of the following except:
1. reduced ability to transport iron
2. reduced ability to transport oxygen
3. reduced ability to clot
4. reduced ability to transport molecules such as lipids
RhoGAM injection [one brand of Rh immunoglobulin] is given to Rh-negative mothers to:
1. initiate the synthesis of anti-Rh antibodies in the mother.
2. initiate anti-Rh antibody production in the fetus.
3. prevent the mother from producing anti-Rh antibodies.
4. prevent the fetus from producing anti-Rh antibodies.
What is true regarding blood transfusion and compatibility?
1. A-negative blood can probably be safely donated to a person with A-positive blood.
2. Antibodies against the Rh antigen do not develop unless an Rh-positive person is exposed to Rh-negative blood.
3. The largest percentage of people in India are Rh-negative.
4. Rh-negative mothers cannot have an Rh-positive baby.
All the following statements regarding coagulation of blood are correct except:
1. Prothrombinase catalyzes the breakdown of prothrombin to thrombin.
2. Thrombin catalyzes the conversion of fibrinogen to fibrin.
3. Antithrombin inactivates thrombin.
4. Heparin causes fibrinolysis.