1. The physiological fluctuations of neutrophils and lymphocytes after birth will cross twice, respectively:
A.4-5d;6-9d < /p>
B.4-5d;6-9 years old
C.6-9d;4-5 years old
D.4-5 years old;6-9 years old Years old
2. Which of the following diseases will not increase the number of neutrophils:
A. Pyogenous coccus infection
BAcute promyelocytic leukemia
C. Lead poisoning
D. Typhoid fever
3. Neutrophils accounted for 19% in the blood of a patient, accompanied by a small amount of neutrophils. Promyelocytes have toxic changes, and the patient is accompanied by severe infection. What kind of nuclear image changes does the patient have:
A. Mild left nuclear shift
B. Medium Severe nuclear shift to the left
C. Severe nuclear shift to the left
D. Nuclear shift to the right
4. Which of the following statements about changes in the nuclear image of neutrophils is correct? :
A. A transient nuclear right shift during the recovery phase of inflammation indicates a poor prognosis
B. A sudden right nuclear shift during the ongoing inflammation phase indicates a poor prognosis< /p>
C. The ratio of rod-shaped nuclei to lobulated nuclei in normal human blood is about 13:1
D. Regenerative nuclear left shift can be seen in aplastic anemia
5. The following belong to peripheral blood:
A. Splitting pool
B. Maturation pool
C. Storage pool
D. Marginal pool
6. Which of the following is wrong about eosinophil counting:
A. When counting eosinophils, the four corners of a pool should be recorded grid and central square.
B. Both ethanol and acetone are eosinophil protective agents.
C. The anticoagulant used in eosinophil counting can be EDTA.
D. The substances that destroy other cells and protect E coloring are potassium carbonate and ammonium oxalate.
Reference answers and analysis
1. Refer to answer C. Analysis: Newborns have higher white blood cells, which decrease to approximately equal to lymphocytes on the 6th to 9th day. At 4 to 5 years old, they are basically equal to each other, forming two cross-change curves of neutrophils and lymphocytes.
2. Refer to answer D. Analysis: A pathological increase in neutrophils can be seen in acute hemolysis, acute blood loss, acute infection, acute poisoning, severe tissue damage and necrosis, malignant tumors, and a pathological decrease in neutrophils is common in typhoid fever, paratyphoid fever, influenza, and reinfection. If there is a problem, apply chloramphenicol and so on.
3. Refer to answer B. Analysis: When the left nuclear shift is mild, the rod-shaped granulocytes are greater than 5%; when the nuclear left shift is moderate, the rod-shaped granulocytes are greater than 15%, with a small number of neutrophils and toxic changes; in severe nuclear shifts, the number of rod-shaped granulocytes is greater than 15%. When shifting to the left, the number of rod-shaped granulocytes is greater than 25%, and immature granulocytes appear. If the nucleus is shifted to the right, more than 3% of the neutrophils have nuclei with more than 5 lobes.
4. Refer to answer B. Analysis: A transient rightward shift of the nucleus during the recovery period of inflammation is normal. A sudden rightward shift of the nucleus during the ongoing stage of inflammation indicates a poor prognosis. The ratio of rod-shaped nuclei to lobulated nuclei in the blood of normal people is about 1. :13;Aplastic anemia is degenerative nuclear left shift.
5. Refer to answer D. Analysis: The division pool, mature pool, and storage pool exist in the bone marrow; the marginal pool and the circulating pool exist in the peripheral blood.
6. Refer to answer A. Analysis: When counting eosinophils, 10 large squares of 2 pools should be recorded under low power.
Protective agents: ethanol, acetone, ethylene glycol
Colorants: bromocresol purple, eosin, fast green, etc.
Destroy other cells and protect E Coloring substances: potassium carbonate, ammonium oxalate
Anticoagulant: sodium citrate, EDTA
Prevent ethanol and liquid volatile agent: glycerol
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