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The nurse is caring for a patient who has developed scar tissue in many of the areas that normally produce blood cells. What organs can become active in blood cell production by the process of extramedullary hematopoiesis?
- A. Spleen and kidneys
- B. Kidneys and pancreas
- C. Pancreas and liver
- D. Liver and spleen
Correct Answer: D
Rationale: In adults with disease that causes marrow destruction, fibrosis, or scarring, the liver and spleen can also resume production of blood cells by a process known as extramedullary hematopoiesis. The kidneys and pancreas do not produce blood cells for the body.
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A patient is receiving a blood transfusion and complains of a new onset of slight dyspnea. The nurses rapid assessment reveals bilateral lung crackles and elevated BP. What is the nurses most appropriate action?
- A. Slow the infusion rate and monitor the patient closely.
- B. Discontinue the transfusion and begin resuscitation.
- C. Pause the transfusion and administer a 250 mL bolus of normal saline.
- D. Discontinue the transfusion and administer a beta-blocker, as ordered.
Correct Answer: A
Rationale: The patient is showing early signs of hypervolemia; the nurse should slow the infusion rate and assess the patient closely for any signs of exacerbation. At this stage, discontinuing the transfusion is not necessary. A bolus would worsen the patients fluid overload.
A patient lives with a diagnosis of sickle cell anemia and receives frequent blood transfusions. The nurse should recognize the patients consequent risk of what complication of treatment?
- A. Hypovolemia
- B. Vitamin B12 deficiency
- C. Thrombocytopenia
- D. Iron overload
Correct Answer: D
Rationale: Patients with chronic transfusion requirements can quickly acquire more iron than they can use, leading to iron overload. These individuals are not at risk for hypovolemia and there is no consequent risk for low platelet or vitamin B12 levels.
A nurse is caring for a patient who undergoing preliminary testing for a hematologic disorder. What sign or symptom most likely suggests a potential hematologic disorder?
- A. Sudden change in level of consciousness (LOC)
- B. Recurrent infections
- C. Anaphylaxis
- D. Severe fatigue
Correct Answer: D
Rationale: The most common indicator of hematologic disease is extreme fatigue. This is more common than changes in LOC, infections, or anaphylaxis.
Which of the following circumstances would most clearly warrant autologous blood donation?
- A. The patient has type-O blood.
- B. The patient has sickle cell disease or a thalassemia.
- C. The patient has elective surgery pending.
- D. The patient has hepatitis C.
Correct Answer: C
Rationale: Autologous blood donation is useful for many elective surgeries where the potential need for transfusion is high. Type-O blood, hepatitis, sickle cell disease, and thalassemia are not clear indications for autologous donation.
A patient has been diagnosed with a lymphoid stem cell defect. This patient has the potential for a problem involving which of the following?
- A. Plasma cells
- B. Neutrophils
- C. Red blood cells
- D. Platelets
Correct Answer: A
Rationale: A defect in a myeloid stem cell can cause problems with erythrocyte, leukocyte, and platelet production. In contrast, a defect in the lymphoid stem cell can cause problems with T or B lymphocytes, plasma cells (a more differentiated form of B lymphocyte), or natural killer (NK) cells.