Single Choice

Question 1

1. In polycythemia:
   A. blood volume increases
   B. blood volume decreases
   C. hematuria occurs
   D. serum cholesterol increases
   E. proteinemia is greater than 8 g/dl

Answer 1

A. Blood volume increases

Question 2

2. An osmotic pressure value of 327 mOs/l:
   A. is normal for the blood
   B. is normal for the plasma
   C. is characteristic of a hypotonic environment
   D. is characteristic of a hypertonic environment
   E. is characteristic of an alkalosis

Answer 2

D. Is a characteristic of a hypertonic environment

Question 3

3. Water in the interstitial fluid:
   A. has high volume in hypoalbuminemia
   B. can be determined directly by dilution method
   C. represents about 25 L of the total water of 40 L
   D. has a smaller volume in polycythemia
   E. increases reflexively in immersion

Answer 3

A. Has high volume in hypoalbuminemia

Question 4

4. Red blood cells:
   A. are formed in the adult liver
   B. are smaller in number in children compared to adults
   C. cross the capillary wall and pass into tissues
   D. secrete interferon
   E. have a role in maintaining the acid-base balance

Answer 4

E. Have a role in maintaining the acid-base balance

Question 5

5. On the erythrocyte membrane of a person with blood group B and Rh positive can be detected:
   A. anti-A agglutinins
   B. anti-B antibodies
   C. agglutinogen A
   D. antigen D
   E. α agglutinins

Answer 5

C. Agglutinogen A

Question 6

Oncotic pressure:
A. is given by plasma electrolytes
B. decreases in hyperproteinemia
C. of the blood has the role of promoting capillary filtration
D. depends on albuminemia
E. has a normal value of 300 mOs/L

Answer 6

D. Depends on albuminmia

Question 7

7. Hemoglobin:
   A. from reticulocytes is called reduced hemoglobin
   B. has a normal concentration of 15 mg/dL
   C. is 98% as oxyhemoglobin at pO2 equal to 100 mmHg
   D. type S contains 4 ε chains
   E. type A contains 4 α chains

Answer 7

E. Type A contains 4 a chains

Question 8

8. About hemolysis it is true that:
   A. occurs physiologically intravascularly
   B. increased can cause jaundice
   C. can be caused by iron deficiency
   D. occurs continuously in isotonic plasma E. occurs in individuals with coagulopathies

Answer 8

B. Increased can cause Juadice

Question 9

9. Oligocythemic hypovolemia occurs:
   A. immediately posthemorrhagic
   B. in dehydration
   C. at altitude
   D. after excessive transfusions E. in severe anemia

Answer 9

A. Immediately posthemorrhagic

Question 10

10. The major histocompatibility complex:
    A. type I can be found on red blood cells
    B. type II is present on all body cells
    C. type I has a role in recognition of own structures (self) by Tc cells
    D. type II can be recognized by CD8 coreceptor
    E. type I is involved in the interaction of some immune cells with Th cells

Answer 10

C. Type 1 has a role in recognition of own structures by Tc cells