Nokea
A nurse is caring for a 3-day old infant who needs an exchange
transfusion. Which of the following statements is appropriate for
teaching the child's parents about this procedure?
- A. The registered nurse will be performing the procedure
- B. The procedure takes approximately 1 ? hours.
- C. The nurse will draw out 250cc of blood and then immediately replace
it with 250cc - D. The infant will continue to receive phototherapy during the
procedure.
Correct Answer: B
Rationale: : An exchange transfusion is a method of controlling high
bilirubin levels in infants when traditional phototherapy is
unsuccessful. During an exchange transfusion, the physician removes
5-10 cc of blood and then replaces it with donor blood. The parents of
this infant should know that the procedure is always performed by a
physician and will take approximately 1 ½ hours to complete.
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A client is having blood tests and has an elevated lymphocyte level. Based on knowledge of cellular components, what does the nurse know about these cells?
- A. Contain histamine and provide protection during allergic reactions
- B. Are involved in phagocytosis
- C. Provide protection and immunity against foreign substances
- D. Carry hemoglobin and oxygen to body tissues
Correct Answer: C
Rationale: Lymphocytes are a type of white blood cells that play a crucial role in supporting the body's immune system. They are responsible for producing substances that protect the body against infections and foreign substances that could potentially harm the client. Lymphocytes consist of two main types: T cells, which are produced in the thymus, and B cells, which are produced in the lymphatic tissue. Choice A is incorrect because histamine is mainly associated with basophils and mast cells, not lymphocytes. Choice B is incorrect as phagocytosis is a function of other white blood cells such as neutrophils and macrophages. Choice D is also incorrect as carrying hemoglobin and oxygen is a function of red blood cells, not lymphocytes.
A client with adrenal insufficiency has a potassium level of 7.2 mEq/L. Which of the following signs or symptoms might the client exhibit with this result?
- A. Peaked T waves on the ECG
- B. Muscle spasms
- C. Constipation
- D. A prominent U wave on the ECG
Correct Answer: A
Rationale: A client with hyperkalemia may exhibit peaked T waves on an electrocardiogram. This manifestation is an early sign of high potassium levels, but diagnosis should not be based on this aspect alone. Untreated, hyperkalemia can lead to progressively worsening cardiac instability. Muscle spasms (Choice B) are more commonly associated with hypocalcemia. Constipation (Choice C) is not a typical sign of hyperkalemia. A prominent U wave on the ECG (Choice D) is associated with hypokalemia, not hyperkalemia.
A nurse is caring for an 83-year-old man who has had swallowing difficulties. All of the following interventions are appropriate for this client EXCEPT:
- A. Keep the client in an upright position at all times
- B. Auscultate lung sounds every shift and after feedings
- C. Maintain suction equipment at the client's bedside
- D. Instruct the client about how to perform swallowing exercises
Correct Answer: A
Rationale: When caring for a client with swallowing difficulties, it is crucial to prevent aspiration of food into the lungs. Appropriate interventions include auscultating lung sounds every shift and after feedings to assess for any changes in breathing patterns, maintaining suction equipment at the client's bedside in case of difficulties, and providing instruction on swallowing exercises. Keeping the client in an upright position at all times is not necessary and may not always be feasible or comfortable for the client. This rigid requirement is not part of the standard care protocol for managing swallowing difficulties.
Mr. G has been admitted to the hospital with a head injury after a 12-foot fall. Which of the following nursing interventions is most appropriate when monitoring intracranial pressure?
- A. Administer hypotonic solutions
- B. Keep the head of the bed elevated
- C. Increase the client's core body temperature to 99.9 degrees
- D. Administer corticosteroids as ordered
Correct Answer: D
Rationale: Administering corticosteroids as ordered is appropriate when monitoring intracranial pressure in clients at risk of increased pressure to reduce brain tissue swelling. Elevating the head of the bed helps in managing intracranial pressure by promoting venous drainage. Administering hypertonic solutions is used to reduce brain edema and control intracranial pressure. Increasing the client's core body temperature is not recommended as it can exacerbate brain injury. Corticosteroids are not routinely used for all head injuries but may be indicated in specific cases, such as certain types of brain injuries where swelling needs to be controlled.
When a blood pressure cuff is too wide for a client's arm, what type of reading might this blood pressure cuff produce?
- A. A normal reading
- B. An abnormally low reading
- C. An abnormally high reading
- D. A fluctuating reading
Correct Answer: B
Rationale: When a blood pressure cuff is too wide for a client's arm, it may produce an abnormally low blood pressure reading. This occurs because the oversized cuff can lead to an underestimation of blood pressure. It is essential to ensure that the cuff fits appropriately to obtain an accurate reading. An abnormally high reading (Choice C) is less likely with an oversized cuff, as it generally leads to lower readings. A normal reading (Choice A) is unlikely due to the inaccuracies caused by the oversized cuff. A fluctuating reading (Choice D) is not a typical result of using a cuff that is too wide; instead, it usually leads to consistently low readings.