Nokea
Which is the first step in the process of hemostasis?
- A. Prothrombin converts to thrombin
- B. Formation of thrombin
- C. Formation of fibrin
- D. Trapping of RBC and platelets
- E. Clot
- F. Release of thromboplastin from platelets
Correct Answer: F
Rationale: Thromboplastin is released from the platelets, which acts with calcium to form thrombin; fibrin is formed, which traps red cells and platelets to make the clot.
You may also like to solve these questions
Which food would the nurse recommend to a person with iron-deficiency anemia as an excellent meat source for erythropoiesis?
- A. Dark meat of chicken
- B. Cured ham
- C. Pork chops
- D. Processed meat
Correct Answer: A
Rationale: The dark meat of poultry is a good meat source for erythropoiesis.
A patient has been diagnosed with pernicious anemia. When reinforcing instructions, the nurse explains this disorder results from which process?
- A. Poor nutritional intake of iron
- B. Lack of the intrinsic factor
- C. Blood loss due to hemorrhage
- D. Excess production of red blood cells
Correct Answer: B
Rationale: With pernicious anemia, the body lacks the intrinsic factor. Iron deficiency anemia is caused by poor nutritional iron intake. Blood loss associated anemia is due to hemorrhage. Pernicious anemia is not associated with excess production of red blood cells.
The hematopoietic stem cell transplant (Bone marrow transplant) is used for a patient with which disease?
- A. Iron deficiency anemia
- B. Aplastic anemia
- C. Leukemia
- D. Pernicious anemia
- E. Myelodysplastic syndrome
Correct Answer: B,C,E
Rationale: Bone marrow transplant may be used for aplastic anemia, leukemia and myelodysplastic syndrome. It is not used for iron deficiency anemia or pernicious anemia.
A 23-year-old male patient with hemophilia A says, 'How can I keep my children from having hemophilia A?' Which is the most informative response?
- A. You need to select a very dependable mode of birth control.'
- B. You can only pass hemophilia B to your sons.'
- C. Your daughter may be a carrier and her children may have hemophilia A.'
- D. Your sons should have coagulation studies.'
Correct Answer: C
Rationale: Hemophilia A is an X-linked trait. Females are carriers; therefore, the patient's daughter could pass the disease to her sons.
The nurse explains to a patient with Non-Hodgkin's lymphoma that a positron emission tomography (PET) has been ordered for which reason?
- A. assess bone marrow depression.
- B. measure bone density.
- C. radiate and destroy diseased lymph nodes.
- D. determine the extent of possible metastasis.
Correct Answer: D
Rationale: The PET can aid in the staging of disease by determining the extent of any metastasis in the liver, lungs, or bones.