General
✓✗During the first pregnancy of an Rh− mother carrying an Rh+ foetus, the foetus is usually safe because
- the foetus is Rh−
- the mother has no antibodies against A and B
- the foetal blood is separated from the maternal blood by the placenta
- the mother produces anti-Rh antibodies very quickly
General
✓✗Given below are two statements.
Statement I: Serum contains fibrinogen.
Statement II: Plasma contains clotting factors in an inactive form.
In the light of the above statements, choose the correct answer from the options given below.
Statement I: Serum contains fibrinogen.
Statement II: Plasma contains clotting factors in an inactive form.
In the light of the above statements, choose the correct answer from the options given below.
- Both Statement I and Statement II are correct
- Both Statement I and Statement II are incorrect
- Statement I is correct but Statement II is incorrect
- Statement I is incorrect but Statement II is correct
General
✓✗The blood group with antibody A and antibody B is
- AB
- O
- B
- A
General
✓✗Heart failure is the condition in which
- arteries become hard and narrow
- the heart is not pumping blood effectively enough to meet the needs of the body
- heart muscle is suddenly damaged by inadequate blood supply
- the heart stops beating completely
General
✓✗An Rh− person exposed to Rh+ blood will
- lose all ABO antibodies
- not show any reaction at all
- form specific antibodies against the Rh antigen
- become Rh+
General
✓✗Adult human RBCs are enucleate. Which of the following statements is the most appropriate explanation for this feature?
A. They do not need to reproduce.
B. They are somatic cells.
C. They do not metabolise.
D. All their internal space is available for oxygen transport.
Choose the correct answer from the options given below.
A. They do not need to reproduce.
B. They are somatic cells.
C. They do not metabolise.
D. All their internal space is available for oxygen transport.
Choose the correct answer from the options given below.
- A only
- A, C and D only
- D only
- B and C only
General
✓✗A person of blood group B has
- antigens A and B and no antibodies
- no antigens and both antibodies
- antigen A and anti-B antibodies
- antigen B and anti-A antibodies
General
✓✗Which of the following is incorrect?
- A decrease in thrombocyte count is called thrombocytopenia.
- A decrease in leucocyte count is called leucopenia.
- An increase in RBC count is called polycythaemia.
- A decrease in platelet count is called leukaemia.
General
✓✗In adults, RBCs are formed in the
- lymph nodes
- red bone marrow
- spleen
- liver
General
✓✗Which of the following statements about blood coagulation are correct?
A. Clotting factors are present in plasma in an inactive form.
B. Thrombin is formed by the action of thrombokinase on prothrombin.
C. Fibrin threads trap dead and damaged formed elements.
D. Factors released from injured tissues cannot start clotting.
E. Clotting involves a cascade of linked enzymic reactions.
Choose the correct answer from the options given below.
A. Clotting factors are present in plasma in an inactive form.
B. Thrombin is formed by the action of thrombokinase on prothrombin.
C. Fibrin threads trap dead and damaged formed elements.
D. Factors released from injured tissues cannot start clotting.
E. Clotting involves a cascade of linked enzymic reactions.
Choose the correct answer from the options given below.
- A, B, C and E only
- A, D and E only
- B, C, D and E only
- A, B and D only
General
✓✗Old RBCs are destroyed mainly in the
- lungs
- kidney
- pancreas
- spleen
General
✓✗In veins, valves are present to check the backward flow of blood flowing at
- low pressure
- high pressure
- atmospheric pressure
- very high pressure
General
✓✗In an ECG, the P-wave represents the
- depolarisation of the atria
- closure of the semilunar valves
- depolarisation of the ventricles
- repolarisation of the ventricles
General
✓✗Arrange the following events of a cardiac cycle in the correct order, beginning with the SA node firing.
A. Closure of AV valves
B. Atrial systole
C. Opening of semilunar valves
D. Closure of semilunar valves
E. Ventricular diastole
Choose the correct sequence.
A. Closure of AV valves
B. Atrial systole
C. Opening of semilunar valves
D. Closure of semilunar valves
E. Ventricular diastole
Choose the correct sequence.
- B, A, C, E, D
- A, B, C, D, E
- B, C, A, E, D
- B, A, E, C, D
General
✓✗From an ECG, 18 QRS complexes are counted in 15 seconds. The heart rate is
- 72 beats per minute
- 90 beats per minute
- 18 beats per minute
- 60 beats per minute