Nokea
The nurse is assisting the physician with obtaining a sample to determine the status of blood cell formation. What type of procedure will the nurse have prepared the client for?
- A. A bone marrow aspiration
- B. A Schilling test
- C. A thoracentesis
- D. A urine sample
Correct Answer: A
Rationale: A bone marrow aspiration is performed to determine the status of blood cell formation. In this procedure, the physician applies local anesthesia and removes bone marrow from the posterior iliac crest or the sternum. The marrow is examined for the types and percentage of immature and maturing blood cells.
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A student nurse is having difficulty understanding the function of globulins. What information can the client provide to the student regarding the function of globulins?
- A. Immunologic agents
- B. Destruction of invading organisms
- C. Precursors to clot formation
- D. Transport of oxygen to the tissues
Correct Answer: A
Rationale: Globulins function primarily as immunologic agents; they prevent or modify some types of infectious diseases. Globulins do not destroy invading organisms, participate in clot formation, or transport oxygen to the tissues.
A client has type AB blood. What type of blood must this client receive during a blood transfusion?
- A. They can receive blood from persons with any type of blood if the RH factor is compatible.
- B. They can only receive blood from persons with type A blood.
- C. They can only receive blood from persons with type B blood.
- D. They can only receive blood from persons with type O blood if the RH factor is positive.
Correct Answer: A
Rationale: People with type AB blood are considered universal recipients because both A and B antigens are present on the red cell membrane. Clients with type AB blood can receive blood from persons with any type of blood, but the Rh factor must be compatible. The other distractors are incorrect because the client can receive blood from any type.
Undifferentiated cells that migrate to the thymus gland develop into which of the following?
- A. A lymphocytes
- B. D lymphocytes
- C. T lymphocytes
- D. S lymphocytes
Correct Answer: C
Rationale: The thymus gland is lymphatic tissue in the upper chest that contains undifferentiated stem cells released from bone marrow. Once the undifferentiated cells migrate to the thymus gland, they develop into T lymphocytes because they are thymus derived. The other options are distractors for this question.
Macrophages attack and destroy foreign substances to the body. Where does this action occur?
- A. At the site of trauma
- B. In the lymph node
- C. In the vascular system
- D. In the thymus
Correct Answer: B
Rationale: As lymph passes through the node, macrophages attack and engulf foreign substances such as bacteria and viruses, abnormal body cells, and other debris. The other options are incorrect.
When obtaining vital signs from a client who has reduced erythrocyte production and a hemoglobin level of 8.2 g/dL, what results would be indicative of these lab studies?
- A. Heart rate of 120 beats/minute
- B. Respiratory rate of 16 breaths/minute
- C. Blood pressure of 140/90 mm Hg
- D. Oxygen saturation of 95%
Correct Answer: A
Rationale: A rapid pulse rate can indicate reduced erythrocytes or inadequate hemoglobin levels. The respiratory rate for this client is within normal range. Hypertension is not indicative of a low hemoglobin level, and what is usually seen would be hypotension. The oxygen saturation level is within normal range.